chore(version): bump version to 0.3.73

Major changes:
- Add browser takeover feature using CDP for authentic browsing
- Implement Docker support with full API server documentation
- Enhance Mockdown with tag preservation system
- Improve parallel crawling performance

This release focuses on authenticity and scalability, introducing the ability
to use users' own browsers while providing containerized deployment options.
Breaking changes include modified browser handling and API response structure.

See CHANGELOG.md for detailed migration guide.

.gitignore

@@ -165,6 +165,8 @@ Crawl4AI.egg-info/
 Crawl4AI.egg-info/*
 crawler_data.db
 .vscode/
+.tests/
+.test_pads/
 test_pad.py
 test_pad*.py
 .data/
@@ -187,4 +189,23 @@ a.txt
 .lambda_function.py
 ec2*
 
-update_changelog.sh
+update_changelog.sh
+
+.DS_Store
+docs/.DS_Store
+tmp/
+test_env/
+**/.DS_Store
+**/.DS_Store
+
+todo.md
+git_changes.py
+git_changes.md
+pypi_build.sh
+git_issues.py
+git_issues.md
+
+.tests/
+.issues/
+.docs/
+.issues/

CHANGELOG.md

@@ -1,5 +1,449 @@
 # Changelog
 
+# CHANGELOG
+
+## [v0.3.73] - 2024-11-05
+
+### Major Features
+- **New Doctor Feature**
+  - Added comprehensive system diagnostics tool
+  - Available through package hub and CLI
+  - Provides automated troubleshooting and system health checks
+  - Includes detailed reporting of configuration issues
+
+- **Dockerized API Server**
+  - Released complete Docker implementation for API server
+  - Added comprehensive documentation for Docker deployment
+  - Implemented container communication protocols
+  - Added environment configuration guides
+
+- **Managed Browser Integration**
+  - Added support for user-controlled browser instances
+  - Implemented `ManagedBrowser` class for better browser lifecycle management
+  - Added ability to connect to existing Chrome DevTools Protocol (CDP) endpoints
+  - Introduced user data directory support for persistent browser profiles
+
+- **Enhanced HTML Processing**
+  - Added HTML tag preservation feature during markdown conversion
+  - Introduced configurable tag preservation system
+  - Improved pre-tag and code block handling
+  - Added support for nested preserved tags with attribute retention
+
+### Improvements
+- **Browser Handling**
+  - Added flag to ignore body visibility for problematic pages
+  - Improved browser process cleanup and management
+  - Enhanced temporary directory handling for browser profiles
+  - Added configurable browser launch arguments
+
+- **Database Management**
+  - Implemented connection pooling for better performance
+  - Added retry logic for database operations
+  - Improved error handling and logging
+  - Enhanced cleanup procedures for database connections
+
+- **Resource Management**
+  - Added memory and CPU monitoring
+  - Implemented dynamic task slot allocation based on system resources
+  - Added configurable cleanup intervals
+
+### Technical Improvements
+- **Code Structure**
+  - Moved version management to dedicated _version.py file
+  - Improved error handling throughout the codebase
+  - Enhanced logging system with better error reporting
+  - Reorganized core components for better maintainability
+
+### Bug Fixes
+- Fixed issues with browser process termination
+- Improved handling of connection timeouts
+- Enhanced error recovery in database operations
+- Fixed memory leaks in long-running processes
+
+### Dependencies
+- Updated Playwright to v1.47
+- Updated core dependencies with more flexible version constraints
+- Added new development dependencies for testing
+
+### Breaking Changes
+- Changed default browser handling behavior
+- Modified database connection management approach
+- Updated API response structure for better consistency
+
+## Migration Guide
+When upgrading to v0.3.73, be aware of the following changes:
+
+1. Docker Deployment:
+   - Review Docker documentation for new deployment options
+   - Update environment configurations as needed
+   - Check container communication settings
+
+2. If using custom browser management:
+   - Update browser initialization code to use new ManagedBrowser class
+   - Review browser cleanup procedures
+
+3. For database operations:
+   - Check custom database queries for compatibility with new connection pooling
+   - Update error handling to work with new retry logic
+
+4. Using the Doctor:
+   - Run doctor command for system diagnostics: `crawl4ai doctor`
+   - Review generated reports for potential issues
+   - Follow recommended fixes for any identified problems
+
+
+## [2024-11-04 - 13:21:42] Comprehensive Update of Crawl4AI Features and Dependencies
+This commit introduces several key enhancements, including improved error handling and robust database operations in `async_database.py`, which now features a connection pool and retry logic for better reliability. Updates to the README.md provide clearer instructions and a better user experience with links to documentation sections. The `.gitignore` file has been refined to include additional directories, while the async web crawler now utilizes a managed browser for more efficient crawling. Furthermore, multiple dependency updates and introduction of the `CustomHTML2Text` class enhance text extraction capabilities.
+
+## [v0.3.73] - 2024-10-24
+
+### Added
+- preserve_tags: Added support for preserving specific HTML tags during markdown conversion.
+- Smart overlay removal system in AsyncPlaywrightCrawlerStrategy:
+  - Automatic removal of popups, modals, and cookie notices
+  - Detection and removal of fixed/sticky position elements
+  - Cleaning of empty block elements
+  - Configurable via `remove_overlay_elements` parameter
+- Enhanced screenshot capabilities:
+  - Added `screenshot_wait_for` parameter to control timing
+  - Improved screenshot handling with existing page context
+  - Better error handling with fallback error images
+- New URL normalization utilities:
+  - `normalize_url` function for consistent URL formatting
+  - `is_external_url` function for better link classification
+- Custom base directory support for cache storage:
+  - New `base_directory` parameter in AsyncWebCrawler
+  - Allows specifying alternative locations for `.crawl4ai` folder
+
+### Enhanced
+- Link handling improvements:
+  - Better duplicate link detection
+  - Enhanced internal/external link classification
+  - Improved handling of special URL protocols
+  - Support for anchor links and protocol-relative URLs
+- Configuration refinements:
+  - Streamlined social media domain list
+  - More focused external content filtering
+- LLM extraction strategy:
+  - Added support for separate API base URL via `api_base` parameter
+  - Better handling of base URLs in configuration
+
+### Fixed
+- Screenshot functionality:
+  - Resolved issues with screenshot timing and context
+  - Improved error handling and recovery
+- Link processing:
+  - Fixed URL normalization edge cases
+  - Better handling of invalid URLs
+  - Improved error messages for link processing failures
+
+### Developer Notes
+- The overlay removal system uses advanced JavaScript injection for better compatibility
+- URL normalization handles special cases like mailto:, tel:, and protocol-relative URLs
+- Screenshot system now reuses existing page context for better performance
+- Link processing maintains separate dictionaries for internal and external links to ensure uniqueness
+
+## [v0.3.72] - 2024-10-22
+
+### Added
+- New `ContentCleaningStrategy` class:
+  - Smart content extraction based on text density and element scoring
+  - Automatic removal of boilerplate content
+  - DOM tree analysis for better content identification
+  - Configurable thresholds for content detection
+- Advanced proxy support:
+  - Added `proxy_config` option for authenticated proxy connections
+  - Support for username/password in proxy configuration
+- New content output formats:
+  - `fit_markdown`: Optimized markdown output with main content focus
+  - `fit_html`: Clean HTML with only essential content
+
+### Enhanced
+- Image source detection:
+  - Support for multiple image source attributes (`src`, `data-src`, `srcset`, etc.)
+  - Automatic fallback through potential source attributes
+  - Smart handling of srcset attribute
+- External content handling:
+  - Made external link exclusion optional (disabled by default)
+  - Improved detection and handling of social media links
+  - Better control over external image filtering
+
+### Fixed
+- Image extraction reliability with multiple source attribute checks
+- External link and image handling logic for better accuracy
+
+### Developer Notes
+- The new `ContentCleaningStrategy` uses configurable thresholds for customization
+- Proxy configuration now supports more complex authentication scenarios
+- Content extraction process now provides both regular and optimized outputs
+
+## [v0.3.72] - 2024-10-20
+
+### Fixed
+- Added support for parsing Base64 encoded images in WebScrappingStrategy
+
+### Added
+- Forked and integrated a customized version of the html2text library for more control over Markdown generation
+- New configuration options for controlling external content:
+  - Ability to exclude all external links
+  - Option to specify domains to exclude (default includes major social media platforms)
+  - Control over excluding external images
+
+### Changed
+- Improved Markdown generation process:
+  - Added fine-grained control over character escaping in Markdown output
+  - Enhanced handling of code blocks and pre-formatted text
+- Updated `AsyncPlaywrightCrawlerStrategy.close()` method to use a shorter sleep time (0.5 seconds instead of 500)
+- Enhanced flexibility in `CosineStrategy` with a more generic `load_HF_embedding_model` function
+
+### Improved
+- Optimized content scraping and processing for better efficiency
+- Enhanced error handling and logging in various components
+
+### Developer Notes
+- The customized html2text library is now located within the crawl4ai package
+- New configuration options are available in the `config.py` file for external content handling
+- The `WebScrappingStrategy` class has been updated to accommodate new external content exclusion options
+
+## [v0.3.71] - 2024-10-19
+
+### Added
+- New chunking strategies:
+  - `OverlappingWindowChunking`: Allows for overlapping chunks of text, useful for maintaining context between chunks.
+  - Enhanced `SlidingWindowChunking`: Improved to handle edge cases and last chunks more effectively.
+
+### Changed
+- Updated `CHUNK_TOKEN_THRESHOLD` in config to 2048 tokens (2^11) for better compatibility with most LLM models.
+- Improved `AsyncPlaywrightCrawlerStrategy.close()` method to use a shorter sleep time (0.5 seconds instead of 500), significantly reducing wait time when closing the crawler.
+- Enhanced flexibility in `CosineStrategy`:
+  - Now uses a more generic `load_HF_embedding_model` function, allowing for easier swapping of embedding models.
+- Updated `JsonCssExtractionStrategy` and `JsonXPATHExtractionStrategy` for better JSON-based extraction.
+
+### Fixed
+- Addressed potential issues with the sliding window chunking strategy to ensure all text is properly chunked.
+
+### Developer Notes
+- Added more comprehensive docstrings to chunking strategies for better code documentation.
+- Removed hardcoded device setting in `CosineStrategy`, now using the automatically detected device.
+- Added a new example in `quickstart_async.py` for generating a knowledge graph from crawled content.
+
+These updates aim to provide more flexibility in text processing, improve performance, and enhance the overall capabilities of the crawl4ai library. The new chunking strategies, in particular, offer more options for handling large texts in various scenarios.
+
+## [v0.3.71] - 2024-10-18
+
+### Changes
+1. **Version Update**:
+   - Updated version number from 0.3.7 to 0.3.71.
+
+2. **Crawler Enhancements**:
+   - Added `sleep_on_close` option to AsyncPlaywrightCrawlerStrategy for delayed browser closure.
+   - Improved context creation with additional options:
+     - Enabled `accept_downloads` and `java_script_enabled`.
+     - Added a cookie to enable cookies by default.
+
+3. **Error Handling Improvements**:
+   - Enhanced error messages in AsyncWebCrawler's `arun` method.
+   - Updated error reporting format for better visibility and consistency.
+
+4. **Performance Optimization**:
+   - Commented out automatic page and context closure in `crawl` method to potentially improve performance in certain scenarios.
+
+### Documentation
+- Updated quickstart notebook:
+  - Changed installation command to use the released package instead of GitHub repository.
+  - Updated kernel display name.
+
+### Developer Notes
+- Minor code refactoring and cleanup.
+
+## [v0.3.7] - 2024-10-17
+
+### New Features
+1. **Enhanced Browser Stealth**: 
+   - Implemented `playwright_stealth` for improved bot detection avoidance.
+   - Added `StealthConfig` for fine-tuned control over stealth parameters.
+
+2. **User Simulation**:
+   - New `simulate_user` option to mimic human-like interactions (mouse movements, clicks, keyboard presses).
+
+3. **Navigator Override**:
+   - Added `override_navigator` option to modify navigator properties, further improving bot detection evasion.
+
+4. **Improved iframe Handling**:
+   - New `process_iframes` parameter to extract and integrate iframe content into the main page.
+
+5. **Flexible Browser Selection**:
+   - Support for choosing between Chromium, Firefox, and WebKit browsers.
+
+6. **Include Links in Markdown**:
+    - Added support for including links in Markdown content, by definin g a new flag `include_links_on_markdown` in `crawl` method.   
+
+### Improvements
+1. **Better Error Handling**:
+   - Enhanced error reporting in WebScrappingStrategy with detailed error messages and suggestions.
+   - Added console message and error logging for better debugging.
+
+2. **Image Processing Enhancements**:
+   - Improved image dimension updating and filtering logic.
+
+3. **Crawling Flexibility**:
+   - Added support for custom viewport sizes.
+   - Implemented delayed content retrieval with `delay_before_return_html` parameter.
+
+4. **Performance Optimization**:
+   - Adjusted default semaphore count for parallel crawling.
+
+### Bug Fixes
+- Fixed an issue where the HTML content could be empty after processing.
+
+### Examples
+- Added new example `crawl_with_user_simulation()` demonstrating the use of user simulation and navigator override features.
+
+### Developer Notes
+- Refactored code for better maintainability and readability.
+- Updated browser launch arguments for improved compatibility and performance.
+
+## [v0.3.6] - 2024-10-12 
+
+### 1. Improved Crawling Control
+- **New Hook**: Added `before_retrieve_html` hook in `AsyncPlaywrightCrawlerStrategy`.
+- **Delayed HTML Retrieval**: Introduced `delay_before_return_html` parameter to allow waiting before retrieving HTML content.
+  - Useful for pages with delayed content loading.
+- **Flexible Timeout**: `smart_wait` function now uses `page_timeout` (default 60 seconds) instead of a fixed 30-second timeout.
+  - Provides better handling for slow-loading pages.
+- **How to use**: Set `page_timeout=your_desired_timeout` (in milliseconds) when calling `crawler.arun()`.
+
+### 2. Browser Type Selection
+- Added support for different browser types (Chromium, Firefox, WebKit).
+- Users can now specify the browser type when initializing AsyncWebCrawler.
+- **How to use**: Set `browser_type="firefox"` or `browser_type="webkit"` when initializing AsyncWebCrawler.
+
+### 3. Screenshot Capture
+- Added ability to capture screenshots during crawling.
+- Useful for debugging and content verification.
+- **How to use**: Set `screenshot=True` when calling `crawler.arun()`.
+
+### 4. Enhanced LLM Extraction Strategy
+- Added support for multiple LLM providers (OpenAI, Hugging Face, Ollama).
+- **Custom Arguments**: Added support for passing extra arguments to LLM providers via `extra_args` parameter.
+- **Custom Headers**: Users can now pass custom headers to the extraction strategy.
+- **How to use**: Specify the desired provider and custom arguments when using `LLMExtractionStrategy`.
+
+### 5. iframe Content Extraction
+- New feature to process and extract content from iframes.
+- **How to use**: Set `process_iframes=True` in the crawl method.
+
+### 6. Delayed Content Retrieval
+- Introduced `get_delayed_content` method in `AsyncCrawlResponse`.
+- Allows retrieval of content after a specified delay, useful for dynamically loaded content.
+- **How to use**: Access `result.get_delayed_content(delay_in_seconds)` after crawling.
+
+## Improvements and Optimizations
+
+### 1. AsyncWebCrawler Enhancements
+- **Flexible Initialization**: Now accepts arbitrary keyword arguments, passed directly to the crawler strategy.
+- Allows for more customized setups.
+
+### 2. Image Processing Optimization
+- Enhanced image handling in WebScrappingStrategy.
+- Added filtering for small, invisible, or irrelevant images.
+- Improved image scoring system for better content relevance.
+- Implemented JavaScript-based image dimension updating for more accurate representation.
+
+### 3. Database Schema Auto-updates
+- Automatic database schema updates ensure compatibility with the latest version.
+
+### 4. Enhanced Error Handling and Logging
+- Improved error messages and logging for easier debugging.
+
+### 5. Content Extraction Refinements
+- Refined HTML sanitization process.
+- Improved handling of base64 encoded images.
+- Enhanced Markdown conversion process.
+- Optimized content extraction algorithms.
+
+### 6. Utility Function Enhancements
+- `perform_completion_with_backoff` function now supports additional arguments for more customized API calls to LLM providers.
+
+## Bug Fixes
+- Fixed an issue where image tags were being prematurely removed during content extraction.
+
+## Examples and Documentation
+- Updated `quickstart_async.py` with examples of:
+  - Using custom headers in LLM extraction.
+  - Different LLM provider usage (OpenAI, Hugging Face, Ollama).
+  - Custom browser type usage.
+
+## Developer Notes
+- Refactored code for better maintainability, flexibility, and performance.
+- Enhanced type hinting throughout the codebase for improved development experience.
+- Expanded error handling for more robust operation.
+
+These updates significantly enhance the flexibility, accuracy, and robustness of crawl4ai, providing users with more control and options for their web crawling and content extraction tasks.
+
+## [v0.3.5] - 2024-09-02
+
+Enhance AsyncWebCrawler with smart waiting and screenshot capabilities
+
+- Implement smart_wait function in AsyncPlaywrightCrawlerStrategy
+- Add screenshot support to AsyncCrawlResponse and AsyncWebCrawler
+- Improve error handling and timeout management in crawling process
+- Fix typo in CrawlResult model (responser_headers -> response_headers)
+
+## [v0.2.77] - 2024-08-04
+
+Significant improvements in text processing and performance:
+
+- 🚀 **Dependency reduction**: Removed dependency on spaCy model for text chunk labeling in cosine extraction strategy.
+- 🤖 **Transformer upgrade**: Implemented text sequence classification using a transformer model for labeling text chunks.
+- ⚡ **Performance enhancement**: Improved model loading speed due to removal of spaCy dependency.
+- 🔧 **Future-proofing**: Laid groundwork for potential complete removal of spaCy dependency in future versions.
+
+These changes address issue #68 and provide a foundation for faster, more efficient text processing in Crawl4AI.
+
+## [v0.2.76] - 2024-08-02
+
+Major improvements in functionality, performance, and cross-platform compatibility! 🚀
+
+- 🐳 **Docker enhancements**: Significantly improved Dockerfile for easy installation on Linux, Mac, and Windows.
+- 🌐 **Official Docker Hub image**: Launched our first official image on Docker Hub for streamlined deployment.
+- 🔧 **Selenium upgrade**: Removed dependency on ChromeDriver, now using Selenium's built-in capabilities for better compatibility.
+- 🖼️ **Image description**: Implemented ability to generate textual descriptions for extracted images from web pages.
+- ⚡ **Performance boost**: Various improvements to enhance overall speed and performance.
+
+A big shoutout to our amazing community contributors:
+- [@aravindkarnam](https://github.com/aravindkarnam) for developing the textual description extraction feature.
+- [@FractalMind](https://github.com/FractalMind) for creating the first official Docker Hub image and fixing Dockerfile errors.
+- [@ketonkss4](https://github.com/ketonkss4) for identifying Selenium's new capabilities, helping us reduce dependencies.
+
+Your contributions are driving Crawl4AI forward! 🙌
+
+## [v0.2.75] - 2024-07-19
+
+Minor improvements for a more maintainable codebase:
+
+- 🔄 Fixed typos in `chunking_strategy.py` and `crawler_strategy.py` to improve code readability
+- 🔄 Removed `.test_pads/` directory from `.gitignore` to keep our repository clean and organized
+
+These changes may seem small, but they contribute to a more stable and sustainable codebase. By fixing typos and updating our `.gitignore` settings, we're ensuring that our code is easier to maintain and scale in the long run.
+
+## [v0.2.74] - 2024-07-08
+A slew of exciting updates to improve the crawler's stability and robustness! 🎉
+
+- 💻 **UTF encoding fix**: Resolved the Windows \"charmap\" error by adding UTF encoding.
+- 🛡️ **Error handling**: Implemented MaxRetryError exception handling in LocalSeleniumCrawlerStrategy.
+- 🧹 **Input sanitization**: Improved input sanitization and handled encoding issues in LLMExtractionStrategy.
+- 🚮 **Database cleanup**: Removed existing database file and initialized a new one.
+
+
+## [v0.2.73] - 2024-07-03
+
+💡 In this release, we've bumped the version to v0.2.73 and refreshed our documentation to ensure you have the best experience with our project.
+
+* Supporting website need "with-head" mode to crawl the website with head.
+* Fixing the installation issues for setup.py and dockerfile.
+* Resolve multiple issues.
+
 ## [v0.2.72] - 2024-06-30
 
 This release brings exciting updates and improvements to our project! 🎉

CONTRIBUTORS.md

@@ -0,0 +1,32 @@
+# Contributors to Crawl4AI
+
+We would like to thank the following people for their contributions to Crawl4AI:
+
+## Core Team
+
+- [Unclecode](https://github.com/unclecode) - Project Creator and Main Developer
+- [Nasrin](https://github.com/ntohidi) - Project Manager and Developer
+- [Aravind Karnam](https://github.com/aravindkarnam) - Developer
+
+## Community Contributors
+
+- [FractalMind](https://github.com/FractalMind) - Created the first official Docker Hub image and fixed Dockerfile errors
+- [ketonkss4](https://github.com/ketonkss4) - Identified Selenium's new capabilities, helping reduce dependencies
+- [jonymusky](https://github.com/jonymusky) - Javascript execution documentation, and wait_for
+- [datehoer](https://github.com/datehoer) - Add browser prxy support
+
+## Other Contributors
+
+- [Gokhan](https://github.com/gkhngyk) 
+- [Shiv Kumar](https://github.com/shivkumar0757)
+- [QIN2DIM](https://github.com/QIN2DIM)
+
+## Acknowledgements
+
+We also want to thank all the users who have reported bugs, suggested features, or helped in any other way to make Crawl4AI better.
+
+---
+
+If you've contributed to Crawl4AI and your name isn't on this list, please [open a pull request](https://github.com/unclecode/crawl4ai/pulls) with your name, link, and contribution, and we'll review it promptly.
+
+Thank you all for your contributions!

Dockerfile

@@ -1,58 +1,121 @@
-# First stage: Build and install dependencies
-FROM python:3.10-slim-bookworm
+# syntax=docker/dockerfile:1.4
 
-# Set the working directory in the container
-WORKDIR /usr/src/app
+# Build arguments
+ARG PYTHON_VERSION=3.10
 
-# Install build dependencies
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends \
-    wget \
-    git \
+# Base stage with system dependencies
+FROM python:${PYTHON_VERSION}-slim as base
+
+# Declare ARG variables again within the build stage
+ARG INSTALL_TYPE=all
+ARG ENABLE_GPU=false
+
+# Platform-specific labels
+LABEL maintainer="unclecode"
+LABEL description="Crawl4AI - Advanced Web Crawler with AI capabilities"
+LABEL version="1.0"
+
+# Environment setup
+ENV PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PIP_NO_CACHE_DIR=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1 \
+    PIP_DEFAULT_TIMEOUT=100 \
+    DEBIAN_FRONTEND=noninteractive
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
     curl \
-    unzip \
+    wget \
     gnupg \
-    xvfb \
-    ca-certificates \
-    apt-transport-https \
-    software-properties-common && \
-    rm -rf /var/lib/apt/lists/*    
+    git \
+    cmake \
+    pkg-config \
+    python3-dev \
+    libjpeg-dev \
+    libpng-dev \
+    && rm -rf /var/lib/apt/lists/*
 
-# Copy the application code
+# Playwright system dependencies for Linux
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libglib2.0-0 \
+    libnss3 \
+    libnspr4 \
+    libatk1.0-0 \
+    libatk-bridge2.0-0 \
+    libcups2 \
+    libdrm2 \
+    libdbus-1-3 \
+    libxcb1 \
+    libxkbcommon0 \
+    libx11-6 \
+    libxcomposite1 \
+    libxdamage1 \
+    libxext6 \
+    libxfixes3 \
+    libxrandr2 \
+    libgbm1 \
+    libpango-1.0-0 \
+    libcairo2 \
+    libasound2 \
+    libatspi2.0-0 \
+    && rm -rf /var/lib/apt/lists/*
+
+# GPU support if enabled
+RUN if [ "$ENABLE_GPU" = "true" ] ; then \
+    apt-get update && apt-get install -y --no-install-recommends \
+    nvidia-cuda-toolkit \
+    && rm -rf /var/lib/apt/lists/* ; \
+    fi
+
+# Create and set working directory
+WORKDIR /app
+
+# Copy the entire project
 COPY . .
 
-# Install Crawl4AI using the local setup.py (which will use the default installation)
-RUN pip install --no-cache-dir .
+# Install base requirements
+RUN pip install --no-cache-dir -r requirements.txt
 
-# Install Google Chrome and ChromeDriver
-RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - && \
-    sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list' && \
-    apt-get update && \
-    apt-get install -y google-chrome-stable && \
-    wget -O /tmp/chromedriver.zip http://chromedriver.storage.googleapis.com/`curl -sS chromedriver.storage.googleapis.com/LATEST_RELEASE`/chromedriver_linux64.zip && \
-    unzip /tmp/chromedriver.zip chromedriver -d /usr/local/bin/
+# Install required library for FastAPI
+RUN pip install fastapi uvicorn psutil
 
-# Set environment to use Chrome and ChromeDriver properly
-ENV CHROME_BIN=/usr/bin/google-chrome \
-    CHROMEDRIVER=/usr/local/bin/chromedriver \
-    DISPLAY=:99 \
-    DBUS_SESSION_BUS_ADDRESS=/dev/null \
-    PYTHONUNBUFFERED=1
+# Install ML dependencies first for better layer caching
+RUN if [ "$INSTALL_TYPE" = "all" ] ; then \
+        pip install --no-cache-dir \
+            torch \
+            torchvision \
+            torchaudio \
+            scikit-learn \
+            nltk \
+            transformers \
+            tokenizers && \
+        python -m nltk.downloader punkt stopwords ; \
+    fi
 
-# Ensure the PATH environment variable includes the location of the installed packages
-ENV PATH /opt/conda/bin:$PATH   
+# Install the package
+RUN if [ "$INSTALL_TYPE" = "all" ] ; then \
+        pip install -e ".[all]" && \
+        python -m crawl4ai.model_loader ; \
+    elif [ "$INSTALL_TYPE" = "torch" ] ; then \
+        pip install -e ".[torch]" ; \
+    elif [ "$INSTALL_TYPE" = "transformer" ] ; then \
+        pip install -e ".[transformer]" && \
+        python -m crawl4ai.model_loader ; \
+    else \
+        pip install -e "." ; \
+    fi
 
-# Make port 80 available to the world outside this container
-EXPOSE 80
+# Install Playwright and browsers
+RUN playwright install
 
-# Download models call cli "crawl4ai-download-models"
-# RUN crawl4ai-download-models
+# Health check
+HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
+    CMD curl -f http://localhost:8000/health || exit 1
 
-# Install mkdocs
-RUN pip install mkdocs mkdocs-terminal
+# Expose port
+EXPOSE 8000
 
-# Call mkdocs to build the documentation
-RUN mkdocs build
-
-# Run uvicorn
-CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "80", "--workers", "4"]
+# Start the FastAPI server
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "11235"]

Dockerfile_mac

@@ -1,44 +0,0 @@
-# Use an official Python runtime as a parent image
-FROM python:3.10-slim
-
-# Set the working directory in the container
-WORKDIR /usr/src/app
-
-# Copy the current directory contents into the container at /usr/src/app
-COPY . .
-
-# Install any needed packages specified in requirements.txt
-RUN pip install --no-cache-dir -r requirements.txt
-
-# Install dependencies for Chrome and ChromeDriver
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    wget \
-    xvfb \
-    unzip \
-    curl \
-    gnupg2 \
-    ca-certificates \
-    apt-transport-https \
-    software-properties-common \
-    && wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
-    && echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list \
-    && apt-get update \
-    && apt-get install -y google-chrome-stable \
-    && rm -rf /var/lib/apt/lists/* \
-    && apt install chromium-chromedriver -y
-
-# Install spacy library using pip
-RUN pip install spacy
-
-# Set display port and dbus env to avoid hanging
-ENV DISPLAY=:99
-ENV DBUS_SESSION_BUS_ADDRESS=/dev/null
-
-# Make port 80 available to the world outside this container
-EXPOSE 80
-
-# Define environment variable
-ENV PYTHONUNBUFFERED 1
-
-# Run uvicorn
-CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "80", "--workers", "4"]

MANIFEST.in

@@ -0,0 +1 @@
+include requirements.txt

MISSION.md

@@ -0,0 +1,46 @@
+# Mission
+
+![Mission Diagram](./docs/assets/pitch-dark.svg)
+
+### 1. The Data Capitalization Opportunity
+
+We live in an unprecedented era of digital wealth creation. Every day, individuals and enterprises generate massive amounts of valuable digital footprints across various platforms, social media channels, messenger apps, and cloud services. While people can interact with their data within these platforms, there's an immense untapped opportunity to transform this data into true capital assets. Just as physical property became a foundational element of wealth creation, personal and enterprise data has the potential to become a new form of capital on balance sheets.
+
+For individuals, this represents an opportunity to transform their digital activities into valuable assets. For enterprises, their internal communications, team discussions, and collaborative documents contain rich insights that could be structured and valued as intellectual capital. This wealth of information represents an unprecedented opportunity for value creation in the digital age.
+
+### 2. The Potential of Authentic Data
+
+While synthetic data has played a crucial role in AI development, there's an enormous untapped potential in the authentic data generated by individuals and organizations. Every message, document, and interaction contains unique insights and patterns that could enhance AI development. The challenge isn't a lack of data - it's that most authentic human-generated data remains inaccessible for productive use.
+
+By enabling willing participation in data sharing, we can unlock this vast reservoir of authentic human knowledge. This represents an opportunity to enhance AI development with diverse, real-world data that reflects the full spectrum of human experience and knowledge.
+
+## Our Pathway to Data Democracy
+
+### 1. Open-Source Foundation
+
+Our first step is creating an open-source data extraction engine that empowers developers and innovators to build tools for data structuring and organization. This foundation ensures transparency, security, and community-driven development. By making these tools openly available, we enable the technical infrastructure needed for true data ownership and capitalization.
+
+### 2. Data Capitalization Platform
+
+Building on this open-source foundation, we're developing a platform that helps individuals and enterprises transform their digital footprints into structured, valuable assets. This platform will provide the tools and frameworks needed to organize, understand, and value personal and organizational data as true capital assets.
+
+### 3. Creating a Data Marketplace
+
+The final piece is establishing a marketplace where individuals and organizations can willingly share their data assets. This creates opportunities for:
+- Individuals to earn equity, revenue, or other forms of value from their data
+- Enterprises to access diverse, high-quality data for AI development
+- Researchers to work with authentic human-generated data
+- Startups to build innovative solutions using real-world data
+
+## Economic Vision: A Shared Data Economy
+
+We envision a future where data becomes a fundamental asset class in a thriving shared economy. This transformation will democratize AI development by enabling willing participation in data sharing, ensuring that the benefits of AI advancement flow back to data creators. Just as property rights revolutionized economic systems, establishing data as a capital asset will create new opportunities for wealth creation and economic participation.
+
+This shared data economy will:
+- Enable individuals to capitalize on their digital footprints
+- Create new revenue streams for data creators
+- Provide AI developers with access to diverse, authentic data
+- Foster innovation through broader access to real-world data
+- Ensure more equitable distribution of AI's economic benefits
+
+Our vision is to facilitate this transformation from the ground up - starting with open-source tools, progressing to data capitalization platforms, and ultimately creating a thriving marketplace where data becomes a true asset class in a shared economy. This approach ensures that the future of AI is built on a foundation of authentic human knowledge, with benefits flowing back to the individuals and organizations who create and share their valuable data.

README.md

@@ -1,148 +1,434 @@
-# Crawl4AI v0.2.72 🕷️🤖
+# 🔥🕷️ Crawl4AI: LLM Friendly Web Crawler & Scrapper
+
+<a href="https://trendshift.io/repositories/11716" target="_blank"><img src="https://trendshift.io/api/badge/repositories/11716" alt="unclecode%2Fcrawl4ai | Trendshift" style="width: 250px; height: 55px;" width="250" height="55"/></a>
 
 [![GitHub Stars](https://img.shields.io/github/stars/unclecode/crawl4ai?style=social)](https://github.com/unclecode/crawl4ai/stargazers)
+![PyPI - Downloads](https://img.shields.io/pypi/dm/Crawl4AI)
 [![GitHub Forks](https://img.shields.io/github/forks/unclecode/crawl4ai?style=social)](https://github.com/unclecode/crawl4ai/network/members)
 [![GitHub Issues](https://img.shields.io/github/issues/unclecode/crawl4ai)](https://github.com/unclecode/crawl4ai/issues)
 [![GitHub Pull Requests](https://img.shields.io/github/issues-pr/unclecode/crawl4ai)](https://github.com/unclecode/crawl4ai/pulls)
 [![License](https://img.shields.io/github/license/unclecode/crawl4ai)](https://github.com/unclecode/crawl4ai/blob/main/LICENSE)
 
-Crawl4AI simplifies web crawling and data extraction, making it accessible for large language models (LLMs) and AI applications. 🆓🌐
+Crawl4AI simplifies asynchronous web crawling and data extraction, making it accessible for large language models (LLMs) and AI applications. 🆓🌐
+
+## 🌟 Meet the Crawl4AI Assistant: Your Copilot for Crawling
+
+Use the [Crawl4AI GPT Assistant](https://tinyurl.com/crawl4ai-gpt) as your AI-powered copilot! With this assistant, you can:
+
+- 🧑‍💻 Generate code for complex crawling and extraction tasks
+- 💡 Get tailored support and examples
+- 📘 Learn Crawl4AI faster with step-by-step guidance
+
+## New in 0.3.72 ✨
+
+- 📄 Fit markdown generation for extracting main article content.
+- 🪄 Magic mode for comprehensive anti-bot detection bypass.
+- 🌐 Enhanced multi-browser support with seamless switching (Chromium, Firefox, WebKit)
+- 📚 New chunking strategies(Sliding window, Overlapping window, Flexible size control)
+- 💾 Improved caching system for better performance
+- ⚡ Optimized batch processing with automatic rate limiting
 
 ## Try it Now!
 
-- Use as REST API: [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1zODYjhemJ5bUmYceWpVoBMVpd0ofzNBZ?usp=sharing)
-- Use as Python library: [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1wz8u30rvbq6Scodye9AGCw8Qg_Z8QGsk)
+✨ Play around with this [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1SgRPrByQLzjRfwoRNq1wSGE9nYY_EE8C?usp=sharing)
 
-✨ visit our [Documentation Website](https://crawl4ai.com/mkdocs/)
+✨ Visit our [Documentation Website](https://crawl4ai.com/mkdocs/)
 
 ## Features ✨
 
 - 🆓 Completely free and open-source
+- 🚀 Blazing fast performance, outperforming many paid services
 - 🤖 LLM-friendly output formats (JSON, cleaned HTML, markdown)
+- 🌐 Multi-browser support (Chromium, Firefox, WebKit)
 - 🌍 Supports crawling multiple URLs simultaneously
 - 🎨 Extracts and returns all media tags (Images, Audio, and Video)
 - 🔗 Extracts all external and internal links
 - 📚 Extracts metadata from the page
-- 🔄 Custom hooks for authentication, headers, and page modifications before crawling
+- 🔄 Custom hooks for authentication, headers, and page modifications
 - 🕵️ User-agent customization
-- 🖼️ Takes screenshots of the page
+- 🖼️ Takes screenshots of pages with enhanced error handling
 - 📜 Executes multiple custom JavaScripts before crawling
+- 📊 Generates structured output without LLM using JsonCssExtractionStrategy
 - 📚 Various chunking strategies: topic-based, regex, sentence, and more
 - 🧠 Advanced extraction strategies: cosine clustering, LLM, and more
-- 🎯 CSS selector support
+- 🎯 CSS selector support for precise data extraction
 - 📝 Passes instructions/keywords to refine extraction
+- 🔒 Proxy support with authentication for enhanced access
+- 🔄 Session management for complex multi-page crawling
+- 🌐 Asynchronous architecture for improved performance
+- 🖼️ Improved image processing with lazy-loading detection
+- 🕰️ Enhanced handling of delayed content loading
+- 🔑 Custom headers support for LLM interactions
+- 🖼️ iframe content extraction for comprehensive analysis
+- ⏱️ Flexible timeout and delayed content retrieval options
 
-## Cool Examples 🚀
+## Installation 🛠️
 
-### Quick Start
+Crawl4AI offers flexible installation options to suit various use cases. You can install it as a Python package or use Docker.
 
-```python
-from crawl4ai import WebCrawler
+### Using pip 🐍
 
-# Create an instance of WebCrawler
-crawler = WebCrawler()
+Choose the installation option that best fits your needs:
 
-# Warm up the crawler (load necessary models)
-crawler.warmup()
+#### Basic Installation
 
-# Run the crawler on a URL
-result = crawler.run(url="https://www.nbcnews.com/business")
-
-# Print the extracted content
-print(result.markdown)
-```
-
-## How to install 🛠    
-```bash
-virtualenv venv
-source venv/bin/activate
-pip install "crawl4ai @ git+https://github.com/unclecode/crawl4ai.git"
-```️
-
-### Speed-First Design 🚀
-
-Perhaps the most important design principle for this library is speed. We need to ensure it can handle many links and resources in parallel as quickly as possible. By combining this speed with fast LLMs like Groq, the results will be truly amazing.
-
-```python
-import time
-from crawl4ai.web_crawler import WebCrawler
-crawler = WebCrawler()
-crawler.warmup()
-
-start = time.time()
-url = r"https://www.nbcnews.com/business"
-result = crawler.run( url, word_count_threshold=10, bypass_cache=True)
-end = time.time()
-print(f"Time taken: {end - start}")
-```
-
-Let's take a look the calculated time for the above code snippet:
+For basic web crawling and scraping tasks:
 
 ```bash
-[LOG] 🚀 Crawling done, success: True, time taken: 1.3623387813568115 seconds
-[LOG] 🚀 Content extracted, success: True, time taken: 0.05715131759643555 seconds
-[LOG] 🚀 Extraction, time taken: 0.05750393867492676 seconds.
-Time taken: 1.439958095550537
+pip install crawl4ai
 ```
-Fetching the content from the page took 1.3623 seconds, and extracting the content took 0.0575 seconds. 🚀
 
-### Extract Structured Data from Web Pages 📊
+By default, this will install the asynchronous version of Crawl4AI, using Playwright for web crawling.
 
-Crawl all OpenAI models and their fees from the official page.
+👉 Note: When you install Crawl4AI, the setup script should automatically install and set up Playwright. However, if you encounter any Playwright-related errors, you can manually install it using one of these methods:
+
+1. Through the command line:
+
+   ```bash
+   playwright install
+   ```
+
+2. If the above doesn't work, try this more specific command:
+
+   ```bash
+   python -m playwright install chromium
+   ```
+
+This second method has proven to be more reliable in some cases.
+
+#### Installation with Synchronous Version
+
+If you need the synchronous version using Selenium:
+
+```bash
+pip install crawl4ai[sync]
+```
+
+#### Development Installation
+
+For contributors who plan to modify the source code:
+
+```bash
+git clone https://github.com/unclecode/crawl4ai.git
+cd crawl4ai
+pip install -e .
+```
+
+### Using Docker 🐳
+
+Crawl4AI is available as Docker images for easy deployment. You can either pull directly from Docker Hub (recommended) or build from the repository.
+
+#### Option 1: Docker Hub (Recommended)
+
+```bash
+# Pull and run from Docker Hub (choose one):
+docker pull unclecode/crawl4ai:basic    # Basic crawling features
+docker pull unclecode/crawl4ai:all      # Full installation (ML, LLM support)
+docker pull unclecode/crawl4ai:gpu      # GPU-enabled version
+
+# Run the container
+docker run -p 11235:11235 unclecode/crawl4ai:basic  # Replace 'basic' with your chosen version
+```
+
+#### Option 2: Build from Repository
+
+```bash
+# Clone the repository
+git clone https://github.com/unclecode/crawl4ai.git
+cd crawl4ai
+
+# Build the image
+docker build -t crawl4ai:local \
+  --build-arg INSTALL_TYPE=basic \  # Options: basic, all
+  .
+
+# Run your local build
+docker run -p 11235:11235 crawl4ai:local
+```
+
+Quick test (works for both options):
+```python
+import requests
+
+# Submit a crawl job
+response = requests.post(
+    "http://localhost:11235/crawl",
+    json={"urls": "https://example.com", "priority": 10}
+)
+task_id = response.json()["task_id"]
+
+# Get results
+result = requests.get(f"http://localhost:11235/task/{task_id}")
+```
+
+For advanced configuration, environment variables, and usage examples, see our [Docker Deployment Guide](https://crawl4ai.com/mkdocs/basic/docker-deployment/).
+
+
+## Quick Start 🚀
+
+```python
+import asyncio
+from crawl4ai import AsyncWebCrawler
+
+async def main():
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        result = await crawler.arun(url="https://www.nbcnews.com/business")
+        print(result.markdown)
+
+if __name__ == "__main__":
+    asyncio.run(main())
+```
+
+## Advanced Usage 🔬
+
+### Executing JavaScript and Using CSS Selectors
+
+```python
+import asyncio
+from crawl4ai import AsyncWebCrawler
+
+async def main():
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        js_code = ["const loadMoreButton = Array.from(document.querySelectorAll('button')).find(button => button.textContent.includes('Load More')); loadMoreButton && loadMoreButton.click();"]
+        result = await crawler.arun(
+            url="https://www.nbcnews.com/business",
+            js_code=js_code,
+            css_selector=".wide-tease-item__description",
+            bypass_cache=True
+        )
+        print(result.extracted_content)
+
+if __name__ == "__main__":
+    asyncio.run(main())
+```
+
+### Using a Proxy
+
+```python
+import asyncio
+from crawl4ai import AsyncWebCrawler
+
+async def main():
+    async with AsyncWebCrawler(verbose=True, proxy="http://127.0.0.1:7890") as crawler:
+        result = await crawler.arun(
+            url="https://www.nbcnews.com/business",
+            bypass_cache=True
+        )
+        print(result.markdown)
+
+if __name__ == "__main__":
+    asyncio.run(main())
+```
+
+### Extracting Structured Data without LLM
+
+The `JsonCssExtractionStrategy` allows for precise extraction of structured data from web pages using CSS selectors.
+
+```python
+import asyncio
+import json
+from crawl4ai import AsyncWebCrawler
+from crawl4ai.extraction_strategy import JsonCssExtractionStrategy
+
+async def extract_news_teasers():
+    schema = {
+        "name": "News Teaser Extractor",
+        "baseSelector": ".wide-tease-item__wrapper",
+        "fields": [
+            {
+                "name": "category",
+                "selector": ".unibrow span[data-testid='unibrow-text']",
+                "type": "text",
+            },
+            {
+                "name": "headline",
+                "selector": ".wide-tease-item__headline",
+                "type": "text",
+            },
+            {
+                "name": "summary",
+                "selector": ".wide-tease-item__description",
+                "type": "text",
+            },
+            {
+                "name": "time",
+                "selector": "[data-testid='wide-tease-date']",
+                "type": "text",
+            },
+            {
+                "name": "image",
+                "type": "nested",
+                "selector": "picture.teasePicture img",
+                "fields": [
+                    {"name": "src", "type": "attribute", "attribute": "src"},
+                    {"name": "alt", "type": "attribute", "attribute": "alt"},
+                ],
+            },
+            {
+                "name": "link",
+                "selector": "a[href]",
+                "type": "attribute",
+                "attribute": "href",
+            },
+        ],
+    }
+
+    extraction_strategy = JsonCssExtractionStrategy(schema, verbose=True)
+
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        result = await crawler.arun(
+            url="https://www.nbcnews.com/business",
+            extraction_strategy=extraction_strategy,
+            bypass_cache=True,
+        )
+
+        assert result.success, "Failed to crawl the page"
+
+        news_teasers = json.loads(result.extracted_content)
+        print(f"Successfully extracted {len(news_teasers)} news teasers")
+        print(json.dumps(news_teasers[0], indent=2))
+
+if __name__ == "__main__":
+    asyncio.run(extract_news_teasers())
+```
+
+For more advanced usage examples, check out our [Examples](https://crawl4ai.com/mkdocs/extraction/css-advanced/) section in the documentation.
+
+### Extracting Structured Data with OpenAI
 
 ```python
 import os
-from crawl4ai import WebCrawler
+import asyncio
+from crawl4ai import AsyncWebCrawler
 from crawl4ai.extraction_strategy import LLMExtractionStrategy
 from pydantic import BaseModel, Field
 
 class OpenAIModelFee(BaseModel):
     model_name: str = Field(..., description="Name of the OpenAI model.")
     input_fee: str = Field(..., description="Fee for input token for the OpenAI model.")
-    output_fee: str = Field(..., description="Fee for output token ßfor the OpenAI model.")
+    output_fee: str = Field(..., description="Fee for output token for the OpenAI model.")
 
-url = 'https://openai.com/api/pricing/'
-crawler = WebCrawler()
-crawler.warmup()
+async def main():
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        result = await crawler.arun(
+            url='https://openai.com/api/pricing/',
+            word_count_threshold=1,
+            extraction_strategy=LLMExtractionStrategy(
+                provider="openai/gpt-4o", api_token=os.getenv('OPENAI_API_KEY'), 
+                schema=OpenAIModelFee.schema(),
+                extraction_type="schema",
+                instruction="""From the crawled content, extract all mentioned model names along with their fees for input and output tokens. 
+                Do not miss any models in the entire content. One extracted model JSON format should look like this: 
+                {"model_name": "GPT-4", "input_fee": "US$10.00 / 1M tokens", "output_fee": "US$30.00 / 1M tokens"}."""
+            ),            
+            bypass_cache=True,
+        )
+        print(result.extracted_content)
 
-result = crawler.run(
-        url=url,
-        word_count_threshold=1,
-        extraction_strategy= LLMExtractionStrategy(
-            provider= "openai/gpt-4o", api_token = os.getenv('OPENAI_API_KEY'), 
-            schema=OpenAIModelFee.schema(),
-            extraction_type="schema",
-            instruction="""From the crawled content, extract all mentioned model names along with their fees for input and output tokens. 
-            Do not miss any models in the entire content. One extracted model JSON format should look like this: 
-            {"model_name": "GPT-4", "input_fee": "US$10.00 / 1M tokens", "output_fee": "US$30.00 / 1M tokens"}."""
-        ),            
-        bypass_cache=True,
-    )
-
-print(result.extracted_content)
+if __name__ == "__main__":
+    asyncio.run(main())
 ```
 
-### Execute JS, Filter Data with CSS Selector, and Clustering
+### Session Management and Dynamic Content Crawling
+
+Crawl4AI excels at handling complex scenarios, such as crawling multiple pages with dynamic content loaded via JavaScript. Here's an example of crawling GitHub commits across multiple pages:
 
 ```python
-from crawl4ai import WebCrawler
-from crawl4ai.chunking_strategy import CosineStrategy
+import asyncio
+import re
+from bs4 import BeautifulSoup
+from crawl4ai import AsyncWebCrawler
 
-js_code = ["const loadMoreButton = Array.from(document.querySelectorAll('button')).find(button => button.textContent.includes('Load More')); loadMoreButton && loadMoreButton.click();"]
+async def crawl_typescript_commits():
+    first_commit = ""
+    async def on_execution_started(page):
+        nonlocal first_commit 
+        try:
+            while True:
+                await page.wait_for_selector('li.Box-sc-g0xbh4-0 h4')
+                commit = await page.query_selector('li.Box-sc-g0xbh4-0 h4')
+                commit = await commit.evaluate('(element) => element.textContent')
+                commit = re.sub(r'\s+', '', commit)
+                if commit and commit != first_commit:
+                    first_commit = commit
+                    break
+                await asyncio.sleep(0.5)
+        except Exception as e:
+            print(f"Warning: New content didn't appear after JavaScript execution: {e}")
 
-crawler = WebCrawler()
-crawler.warmup()
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        crawler.crawler_strategy.set_hook('on_execution_started', on_execution_started)
 
-result = crawler.run(
-    url="https://www.nbcnews.com/business",
-    js=js_code,
-    css_selector="p",
-    extraction_strategy=CosineStrategy(semantic_filter="technology")
-)
+        url = "https://github.com/microsoft/TypeScript/commits/main"
+        session_id = "typescript_commits_session"
+        all_commits = []
 
-print(result.extracted_content)
+        js_next_page = """
+        const button = document.querySelector('a[data-testid="pagination-next-button"]');
+        if (button) button.click();
+        """
+
+        for page in range(3):  # Crawl 3 pages
+            result = await crawler.arun(
+                url=url,
+                session_id=session_id,
+                css_selector="li.Box-sc-g0xbh4-0",
+                js=js_next_page if page > 0 else None,
+                bypass_cache=True,
+                js_only=page > 0
+            )
+
+            assert result.success, f"Failed to crawl page {page + 1}"
+
+            soup = BeautifulSoup(result.cleaned_html, 'html.parser')
+            commits = soup.select("li")
+            all_commits.extend(commits)
+
+            print(f"Page {page + 1}: Found {len(commits)} commits")
+
+        await crawler.crawler_strategy.kill_session(session_id)
+        print(f"Successfully crawled {len(all_commits)} commits across 3 pages")
+
+if __name__ == "__main__":
+    asyncio.run(crawl_typescript_commits())
 ```
 
+This example demonstrates Crawl4AI's ability to handle complex scenarios where content is loaded asynchronously. It crawls multiple pages of GitHub commits, executing JavaScript to load new content and using custom hooks to ensure data is loaded before proceeding.
+
+For more advanced usage examples, check out our [Examples](https://crawl4ai.com/mkdocs/tutorial/episode_12_Session-Based_Crawling_for_Dynamic_Websites/) section in the documentation.
+</details>
+
+
+## Speed Comparison 🚀
+
+Crawl4AI is designed with speed as a primary focus. Our goal is to provide the fastest possible response with high-quality data extraction, minimizing abstractions between the data and the user.
+
+We've conducted a speed comparison between Crawl4AI and Firecrawl, a paid service. The results demonstrate Crawl4AI's superior performance:
+
+```bash
+Firecrawl:
+Time taken: 7.02 seconds
+Content length: 42074 characters
+Images found: 49
+
+Crawl4AI (simple crawl):
+Time taken: 1.60 seconds
+Content length: 18238 characters
+Images found: 49
+
+Crawl4AI (with JavaScript execution):
+Time taken: 4.64 seconds
+Content length: 40869 characters
+Images found: 89
+```
+
+As you can see, Crawl4AI outperforms Firecrawl significantly:
+
+- Simple crawl: Crawl4AI is over 4 times faster than Firecrawl.
+- With JavaScript execution: Even when executing JavaScript to load more content (doubling the number of images found), Crawl4AI is still faster than Firecrawl's simple crawl.
+
+You can find the full comparison code in our repository at `docs/examples/crawl4ai_vs_firecrawl.py`.
+
 ## Documentation 📚
 
 For detailed documentation, including installation instructions, advanced features, and API reference, visit our [Documentation Website](https://crawl4ai.com/mkdocs/).
@@ -165,6 +451,34 @@ For questions, suggestions, or feedback, feel free to reach out:
 
 Happy Crawling! 🕸️🚀
 
+
+# Mission
+
+Our mission is to unlock the untapped potential of personal and enterprise data in the digital age. In today's world, individuals and organizations generate vast amounts of valuable digital footprints, yet this data remains largely uncapitalized as a true asset. 
+
+Our open-source solution empowers developers and innovators to build tools for data extraction and structuring, laying the foundation for a new era of data ownership. By transforming personal and enterprise data into structured, tradeable assets, we're creating opportunities for individuals to capitalize on their digital footprints and for organizations to unlock the value of their collective knowledge.
+
+This democratization of data represents the first step toward a shared data economy, where willing participation in data sharing drives AI advancement while ensuring the benefits flow back to data creators. Through this approach, we're building a future where AI development is powered by authentic human knowledge rather than synthetic alternatives.
+
+![Mission Diagram](./docs/assets/pitch-dark.svg)
+
+For a detailed exploration of our vision, opportunities, and pathway forward, please see our [full mission statement](./MISSION.md).
+
+## Key Opportunities
+
+- **Data Capitalization**: Transform digital footprints into valuable assets that can appear on personal and enterprise balance sheets
+- **Authentic Data**: Unlock the vast reservoir of real human insights and knowledge for AI advancement
+- **Shared Economy**: Create new value streams where data creators directly benefit from their contributions
+
+## Development Pathway
+
+1. **Open-Source Foundation**: Building transparent, community-driven data extraction tools
+2. **Data Capitalization Platform**: Creating tools to structure and value digital assets
+3. **Shared Data Marketplace**: Establishing an economic platform for ethical data exchange
+
+For a detailed exploration of our vision, challenges, and solutions, please see our [full mission statement](./MISSION.md).
+
+
 ## Star History
 
 [![Star History Chart](https://api.star-history.com/svg?repos=unclecode/crawl4ai&type=Date)](https://star-history.com/#unclecode/crawl4ai&Date)

README.sync.md

@@ -0,0 +1,244 @@
+# Crawl4AI v0.2.77 🕷️🤖
+
+[![GitHub Stars](https://img.shields.io/github/stars/unclecode/crawl4ai?style=social)](https://github.com/unclecode/crawl4ai/stargazers)
+[![GitHub Forks](https://img.shields.io/github/forks/unclecode/crawl4ai?style=social)](https://github.com/unclecode/crawl4ai/network/members)
+[![GitHub Issues](https://img.shields.io/github/issues/unclecode/crawl4ai)](https://github.com/unclecode/crawl4ai/issues)
+[![GitHub Pull Requests](https://img.shields.io/github/issues-pr/unclecode/crawl4ai)](https://github.com/unclecode/crawl4ai/pulls)
+[![License](https://img.shields.io/github/license/unclecode/crawl4ai)](https://github.com/unclecode/crawl4ai/blob/main/LICENSE)
+
+Crawl4AI simplifies web crawling and data extraction, making it accessible for large language models (LLMs) and AI applications. 🆓🌐
+
+#### [v0.2.77] - 2024-08-02
+
+Major improvements in functionality, performance, and cross-platform compatibility! 🚀
+
+- 🐳 **Docker enhancements**:
+  - Significantly improved Dockerfile for easy installation on Linux, Mac, and Windows.
+- 🌐 **Official Docker Hub image**:
+  - Launched our first official image on Docker Hub for streamlined deployment (unclecode/crawl4ai).
+- 🔧 **Selenium upgrade**:
+  - Removed dependency on ChromeDriver, now using Selenium's built-in capabilities for better compatibility.
+- 🖼️ **Image description**:
+  - Implemented ability to generate textual descriptions for extracted images from web pages.
+- ⚡ **Performance boost**:
+  - Various improvements to enhance overall speed and performance.
+  
+## Try it Now!
+
+✨ Play around with this [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1sJPAmeLj5PMrg2VgOwMJ2ubGIcK0cJeX?usp=sharing)
+
+✨ visit our [Documentation Website](https://crawl4ai.com/mkdocs/)
+
+✨ Check [Demo](https://crawl4ai.com/mkdocs/demo)
+
+## Features ✨
+
+- 🆓 Completely free and open-source
+- 🤖 LLM-friendly output formats (JSON, cleaned HTML, markdown)
+- 🌍 Supports crawling multiple URLs simultaneously
+- 🎨 Extracts and returns all media tags (Images, Audio, and Video)
+- 🔗 Extracts all external and internal links
+- 📚 Extracts metadata from the page
+- 🔄 Custom hooks for authentication, headers, and page modifications before crawling
+- 🕵️ User-agent customization
+- 🖼️ Takes screenshots of the page
+- 📜 Executes multiple custom JavaScripts before crawling
+- 📚 Various chunking strategies: topic-based, regex, sentence, and more
+- 🧠 Advanced extraction strategies: cosine clustering, LLM, and more
+- 🎯 CSS selector support
+- 📝 Passes instructions/keywords to refine extraction
+
+# Crawl4AI
+
+## 🌟 Shoutout to Contributors of v0.2.77!
+
+A big thank you to the amazing contributors who've made this release possible:
+
+- [@aravindkarnam](https://github.com/aravindkarnam) for the new image description feature
+- [@FractalMind](https://github.com/FractalMind) for our official Docker Hub image
+- [@ketonkss4](https://github.com/ketonkss4) for helping streamline our Selenium setup
+
+Your contributions are driving Crawl4AI forward! 🚀
+
+## Cool Examples 🚀
+
+### Quick Start
+
+```python
+from crawl4ai import WebCrawler
+
+# Create an instance of WebCrawler
+crawler = WebCrawler()
+
+# Warm up the crawler (load necessary models)
+crawler.warmup()
+
+# Run the crawler on a URL
+result = crawler.run(url="https://www.nbcnews.com/business")
+
+# Print the extracted content
+print(result.markdown)
+```
+
+## How to install 🛠 
+
+### Using pip 🐍
+```bash
+virtualenv venv
+source venv/bin/activate
+pip install "crawl4ai @ git+https://github.com/unclecode/crawl4ai.git"
+```
+
+### Using Docker 🐳
+
+```bash
+# For Mac users (M1/M2)
+# docker build --platform linux/amd64 -t crawl4ai .
+docker build -t crawl4ai .
+docker run -d -p 8000:80 crawl4ai
+```
+
+### Using Docker Hub 🐳
+
+```bash
+docker pull unclecode/crawl4ai:latest
+docker run -d -p 8000:80 unclecode/crawl4ai:latest
+```
+
+
+## Speed-First Design 🚀
+
+Perhaps the most important design principle for this library is speed. We need to ensure it can handle many links and resources in parallel as quickly as possible. By combining this speed with fast LLMs like Groq, the results will be truly amazing.
+
+```python
+import time
+from crawl4ai.web_crawler import WebCrawler
+crawler = WebCrawler()
+crawler.warmup()
+
+start = time.time()
+url = r"https://www.nbcnews.com/business"
+result = crawler.run( url, word_count_threshold=10, bypass_cache=True)
+end = time.time()
+print(f"Time taken: {end - start}")
+```
+
+Let's take a look the calculated time for the above code snippet:
+
+```bash
+[LOG] 🚀 Crawling done, success: True, time taken: 1.3623387813568115 seconds
+[LOG] 🚀 Content extracted, success: True, time taken: 0.05715131759643555 seconds
+[LOG] 🚀 Extraction, time taken: 0.05750393867492676 seconds.
+Time taken: 1.439958095550537
+```
+Fetching the content from the page took 1.3623 seconds, and extracting the content took 0.0575 seconds. 🚀
+
+### Extract Structured Data from Web Pages 📊
+
+Crawl all OpenAI models and their fees from the official page.
+
+```python
+import os
+from crawl4ai import WebCrawler
+from crawl4ai.extraction_strategy import LLMExtractionStrategy
+from pydantic import BaseModel, Field
+
+class OpenAIModelFee(BaseModel):
+    model_name: str = Field(..., description="Name of the OpenAI model.")
+    input_fee: str = Field(..., description="Fee for input token for the OpenAI model.")
+    output_fee: str = Field(..., description="Fee for output token ßfor the OpenAI model.")
+
+url = 'https://openai.com/api/pricing/'
+crawler = WebCrawler()
+crawler.warmup()
+
+result = crawler.run(
+        url=url,
+        word_count_threshold=1,
+        extraction_strategy= LLMExtractionStrategy(
+            provider= "openai/gpt-4o", api_token = os.getenv('OPENAI_API_KEY'), 
+            schema=OpenAIModelFee.schema(),
+            extraction_type="schema",
+            instruction="""From the crawled content, extract all mentioned model names along with their fees for input and output tokens. 
+            Do not miss any models in the entire content. One extracted model JSON format should look like this: 
+            {"model_name": "GPT-4", "input_fee": "US$10.00 / 1M tokens", "output_fee": "US$30.00 / 1M tokens"}."""
+        ),            
+        bypass_cache=True,
+    )
+
+print(result.extracted_content)
+```
+
+### Execute JS, Filter Data with CSS Selector, and Clustering
+
+```python
+from crawl4ai import WebCrawler
+from crawl4ai.chunking_strategy import CosineStrategy
+
+js_code = ["const loadMoreButton = Array.from(document.querySelectorAll('button')).find(button => button.textContent.includes('Load More')); loadMoreButton && loadMoreButton.click();"]
+
+crawler = WebCrawler()
+crawler.warmup()
+
+result = crawler.run(
+    url="https://www.nbcnews.com/business",
+    js=js_code,
+    css_selector="p",
+    extraction_strategy=CosineStrategy(semantic_filter="technology")
+)
+
+print(result.extracted_content)
+```
+
+### Extract Structured Data from Web Pages With Proxy and BaseUrl
+
+```python
+from crawl4ai import WebCrawler
+from crawl4ai.extraction_strategy import LLMExtractionStrategy
+
+def create_crawler():
+    crawler = WebCrawler(verbose=True, proxy="http://127.0.0.1:7890")
+    crawler.warmup()
+    return crawler
+
+crawler = create_crawler()
+
+crawler.warmup()
+
+result = crawler.run(
+    url="https://www.nbcnews.com/business",
+    extraction_strategy=LLMExtractionStrategy(
+        provider="openai/gpt-4o",
+        api_token="sk-",
+        base_url="https://api.openai.com/v1"
+    )
+)
+
+print(result.markdown)
+```
+
+## Documentation 📚
+
+For detailed documentation, including installation instructions, advanced features, and API reference, visit our [Documentation Website](https://crawl4ai.com/mkdocs/).
+
+## Contributing 🤝
+
+We welcome contributions from the open-source community. Check out our [contribution guidelines](https://github.com/unclecode/crawl4ai/blob/main/CONTRIBUTING.md) for more information.
+
+## License 📄
+
+Crawl4AI is released under the [Apache 2.0 License](https://github.com/unclecode/crawl4ai/blob/main/LICENSE).
+
+## Contact 📧
+
+For questions, suggestions, or feedback, feel free to reach out:
+
+- GitHub: [unclecode](https://github.com/unclecode)
+- Twitter: [@unclecode](https://twitter.com/unclecode)
+- Website: [crawl4ai.com](https://crawl4ai.com)
+
+Happy Crawling! 🕸️🚀
+
+## Star History
+
+[![Star History Chart](https://api.star-history.com/svg?repos=unclecode/crawl4ai&type=Date)](https://star-history.com/#unclecode/crawl4ai&Date)

crawl4ai/__init__.py

@@ -1 +1,30 @@
-from .web_crawler import WebCrawler
+# __init__.py
+
+from .async_webcrawler import AsyncWebCrawler
+from .models import CrawlResult
+from ._version import __version__
+# __version__ = "0.3.73"
+
+__all__ = [
+    "AsyncWebCrawler",
+    "CrawlResult",
+]
+
+def is_sync_version_installed():
+    try:
+        import selenium
+        return True
+    except ImportError:
+        return False
+
+if is_sync_version_installed():
+    try:
+        from .web_crawler import WebCrawler
+        __all__.append("WebCrawler")
+    except ImportError:
+        import warnings
+        print("Warning: Failed to import WebCrawler even though selenium is installed. This might be due to other missing dependencies.")
+else:
+    WebCrawler = None
+    import warnings
+    print("Warning: Synchronous WebCrawler is not available. Install crawl4ai[sync] for synchronous support. However, please note that the synchronous version will be deprecated soon.")

crawl4ai/_version.py

@@ -0,0 +1,2 @@
+# crawl4ai/_version.py
+__version__ = "0.3.73"

crawl4ai/async_crawler_strategy.py

@@ -0,0 +1,881 @@
+import asyncio
+import base64
+import time
+from abc import ABC, abstractmethod
+from typing import Callable, Dict, Any, List, Optional, Awaitable
+import os, sys, shutil
+import tempfile, subprocess
+from playwright.async_api import async_playwright, Page, Browser, Error
+from io import BytesIO
+from PIL import Image, ImageDraw, ImageFont
+from pathlib import Path
+from playwright.async_api import ProxySettings
+from pydantic import BaseModel
+import hashlib
+import json
+import uuid
+
+from playwright_stealth import StealthConfig, stealth_async
+
+stealth_config = StealthConfig(
+    webdriver=True,
+    chrome_app=True,
+    chrome_csi=True,
+    chrome_load_times=True,
+    chrome_runtime=True,
+    navigator_languages=True,
+    navigator_plugins=True,
+    navigator_permissions=True,
+    webgl_vendor=True,
+    outerdimensions=True,
+    navigator_hardware_concurrency=True,
+    media_codecs=True,
+)
+
+
+class ManagedBrowser:
+    def __init__(self, browser_type: str = "chromium", user_data_dir: Optional[str] = None, headless: bool = False):
+        self.browser_type = browser_type
+        self.user_data_dir = user_data_dir
+        self.headless = headless
+        self.browser_process = None
+        self.temp_dir = None
+        self.debugging_port = 9222
+
+    async def start(self) -> str:
+        """
+        Starts the browser process and returns the CDP endpoint URL.
+        If user_data_dir is not provided, creates a temporary directory.
+        """
+        
+        # Create temp dir if needed
+        if not self.user_data_dir:
+            self.temp_dir = tempfile.mkdtemp(prefix="browser-profile-")
+            self.user_data_dir = self.temp_dir
+
+        # Get browser path and args based on OS and browser type
+        browser_path = self._get_browser_path()
+        args = self._get_browser_args()
+
+        # Start browser process
+        try:
+            self.browser_process = subprocess.Popen(
+                args,
+                stdout=subprocess.PIPE,
+                stderr=subprocess.PIPE
+            )
+            await asyncio.sleep(2)  # Give browser time to start
+            return f"http://localhost:{self.debugging_port}"
+        except Exception as e:
+            await self.cleanup()
+            raise Exception(f"Failed to start browser: {e}")
+
+    def _get_browser_path(self) -> str:
+        """Returns the browser executable path based on OS and browser type"""
+        if sys.platform == "darwin":  # macOS
+            paths = {
+                "chromium": "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome",
+                "firefox": "/Applications/Firefox.app/Contents/MacOS/firefox",
+                "webkit": "/Applications/Safari.app/Contents/MacOS/Safari"
+            }
+        elif sys.platform == "win32":  # Windows
+            paths = {
+                "chromium": "C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe",
+                "firefox": "C:\\Program Files\\Mozilla Firefox\\firefox.exe",
+                "webkit": None  # WebKit not supported on Windows
+            }
+        else:  # Linux
+            paths = {
+                "chromium": "google-chrome",
+                "firefox": "firefox",
+                "webkit": None  # WebKit not supported on Linux
+            }
+        
+        return paths.get(self.browser_type)
+
+    def _get_browser_args(self) -> List[str]:
+        """Returns browser-specific command line arguments"""
+        base_args = [self._get_browser_path()]
+        
+        if self.browser_type == "chromium":
+            args = [
+                f"--remote-debugging-port={self.debugging_port}",
+                f"--user-data-dir={self.user_data_dir}",
+            ]
+            if self.headless:
+                args.append("--headless=new")
+        elif self.browser_type == "firefox":
+            args = [
+                "--remote-debugging-port", str(self.debugging_port),
+                "--profile", self.user_data_dir,
+            ]
+            if self.headless:
+                args.append("--headless")
+        else:
+            raise NotImplementedError(f"Browser type {self.browser_type} not supported")
+            
+        return base_args + args
+
+    async def cleanup(self):
+        """Cleanup browser process and temporary directory"""
+        if self.browser_process:
+            try:
+                self.browser_process.terminate()
+                await asyncio.sleep(1)
+                if self.browser_process.poll() is None:
+                    self.browser_process.kill()
+            except Exception as e:
+                print(f"Error terminating browser: {e}")
+
+        if self.temp_dir and os.path.exists(self.temp_dir):
+            try:
+                shutil.rmtree(self.temp_dir)
+            except Exception as e:
+                print(f"Error removing temporary directory: {e}")
+
+class AsyncCrawlResponse(BaseModel):
+    html: str
+    response_headers: Dict[str, str]
+    status_code: int
+    screenshot: Optional[str] = None
+    get_delayed_content: Optional[Callable[[Optional[float]], Awaitable[str]]] = None
+
+    class Config:
+        arbitrary_types_allowed = True
+
+class AsyncCrawlerStrategy(ABC):
+    @abstractmethod
+    async def crawl(self, url: str, **kwargs) -> AsyncCrawlResponse:
+        pass
+    
+    @abstractmethod
+    async def crawl_many(self, urls: List[str], **kwargs) -> List[AsyncCrawlResponse]:
+        pass
+    
+    @abstractmethod
+    async def take_screenshot(self, **kwargs) -> str:
+        pass
+    
+    @abstractmethod
+    def update_user_agent(self, user_agent: str):
+        pass
+    
+    @abstractmethod
+    def set_hook(self, hook_type: str, hook: Callable):
+        pass
+
+class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
+    def __init__(self, use_cached_html=False, js_code=None, **kwargs):
+        self.use_cached_html = use_cached_html
+        self.user_agent = kwargs.get(
+            "user_agent",
+            "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 "
+            "(KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36"
+        )
+        self.proxy = kwargs.get("proxy")
+        self.proxy_config = kwargs.get("proxy_config")
+        self.headless = kwargs.get("headless", True)
+        self.browser_type = kwargs.get("browser_type", "chromium")
+        self.headers = kwargs.get("headers", {})
+        self.sessions = {}
+        self.session_ttl = 1800 
+        self.js_code = js_code
+        self.verbose = kwargs.get("verbose", False)
+        self.playwright = None
+        self.browser = None
+        self.sleep_on_close = kwargs.get("sleep_on_close", False)
+        self.use_managed_browser = kwargs.get("use_managed_browser", False)
+        self.user_data_dir = kwargs.get("user_data_dir", None)
+        self.managed_browser = None
+        self.hooks = {
+            'on_browser_created': None,
+            'on_user_agent_updated': None,
+            'on_execution_started': None,
+            'before_goto': None,
+            'after_goto': None,
+            'before_return_html': None,
+            'before_retrieve_html': None
+        }
+
+    async def __aenter__(self):
+        await self.start()
+        return self
+
+    async def __aexit__(self, exc_type, exc_val, exc_tb):
+        await self.close()
+
+    async def start(self):
+        if self.playwright is None:
+            self.playwright = await async_playwright().start()
+        if self.browser is None:
+            if self.use_managed_browser:
+                # Use managed browser approach
+                self.managed_browser = ManagedBrowser(
+                    browser_type=self.browser_type,
+                    user_data_dir=self.user_data_dir,
+                    headless=self.headless
+                )
+                cdp_url = await self.managed_browser.start()
+                self.browser = await self.playwright.chromium.connect_over_cdp(cdp_url)
+            else:
+                browser_args = {
+                    "headless": self.headless,
+                    "args": [
+                        "--disable-gpu",
+                        "--no-sandbox",
+                        "--disable-dev-shm-usage",
+                        "--disable-blink-features=AutomationControlled",
+                        "--disable-infobars",
+                        "--window-position=0,0",
+                        "--ignore-certificate-errors",
+                        "--ignore-certificate-errors-spki-list",
+                        # "--headless=new",  # Use the new headless mode
+                    ]
+                }
+                
+                # Add proxy settings if a proxy is specified
+                if self.proxy:
+                    proxy_settings = ProxySettings(server=self.proxy)
+                    browser_args["proxy"] = proxy_settings
+                elif self.proxy_config:
+                    proxy_settings = ProxySettings(server=self.proxy_config.get("server"), username=self.proxy_config.get("username"), password=self.proxy_config.get("password"))
+                    browser_args["proxy"] = proxy_settings
+                    
+                # Select the appropriate browser based on the browser_type
+                if self.browser_type == "firefox":
+                    self.browser = await self.playwright.firefox.launch(**browser_args)
+                elif self.browser_type == "webkit":
+                    self.browser = await self.playwright.webkit.launch(**browser_args)
+                else:
+                    self.browser = await self.playwright.chromium.launch(**browser_args)
+
+            await self.execute_hook('on_browser_created', self.browser)
+
+    async def close(self):
+        if self.sleep_on_close:
+            await asyncio.sleep(0.5)
+        if self.browser:
+            await self.browser.close()
+            self.browser = None
+        if self.managed_browser:
+            await self.managed_browser.cleanup()
+            self.managed_browser = None
+        if self.playwright:
+            await self.playwright.stop()
+            self.playwright = None
+
+    def __del__(self):
+        if self.browser or self.playwright:
+            asyncio.get_event_loop().run_until_complete(self.close())
+
+    def set_hook(self, hook_type: str, hook: Callable):
+        if hook_type in self.hooks:
+            self.hooks[hook_type] = hook
+        else:
+            raise ValueError(f"Invalid hook type: {hook_type}")
+
+    async def execute_hook(self, hook_type: str, *args):
+        hook = self.hooks.get(hook_type)
+        if hook:
+            if asyncio.iscoroutinefunction(hook):
+                return await hook(*args)
+            else:
+                return hook(*args)
+        return args[0] if args else None
+
+    def update_user_agent(self, user_agent: str):
+        self.user_agent = user_agent
+
+    def set_custom_headers(self, headers: Dict[str, str]):
+        self.headers = headers
+
+    async def kill_session(self, session_id: str):
+        if session_id in self.sessions:
+            context, page, _ = self.sessions[session_id]
+            await page.close()
+            await context.close()
+            del self.sessions[session_id]
+
+    def _cleanup_expired_sessions(self):
+        current_time = time.time()
+        expired_sessions = [
+            sid for sid, (_, _, last_used) in self.sessions.items() 
+            if current_time - last_used > self.session_ttl
+        ]
+        for sid in expired_sessions:
+            asyncio.create_task(self.kill_session(sid))
+            
+    async def smart_wait(self, page: Page, wait_for: str, timeout: float = 30000):
+        wait_for = wait_for.strip()
+        
+        if wait_for.startswith('js:'):
+            # Explicitly specified JavaScript
+            js_code = wait_for[3:].strip()
+            return await self.csp_compliant_wait(page, js_code, timeout)
+        elif wait_for.startswith('css:'):
+            # Explicitly specified CSS selector
+            css_selector = wait_for[4:].strip()
+            try:
+                await page.wait_for_selector(css_selector, timeout=timeout)
+            except Error as e:
+                if 'Timeout' in str(e):
+                    raise TimeoutError(f"Timeout after {timeout}ms waiting for selector '{css_selector}'")
+                else:
+                    raise ValueError(f"Invalid CSS selector: '{css_selector}'")
+        else:
+            # Auto-detect based on content
+            if wait_for.startswith('()') or wait_for.startswith('function'):
+                # It's likely a JavaScript function
+                return await self.csp_compliant_wait(page, wait_for, timeout)
+            else:
+                # Assume it's a CSS selector first
+                try:
+                    await page.wait_for_selector(wait_for, timeout=timeout)
+                except Error as e:
+                    if 'Timeout' in str(e):
+                        raise TimeoutError(f"Timeout after {timeout}ms waiting for selector '{wait_for}'")
+                    else:
+                        # If it's not a timeout error, it might be an invalid selector
+                        # Let's try to evaluate it as a JavaScript function as a fallback
+                        try:
+                            return await self.csp_compliant_wait(page, f"() => {{{wait_for}}}", timeout)
+                        except Error:
+                            raise ValueError(f"Invalid wait_for parameter: '{wait_for}'. "
+                                             "It should be either a valid CSS selector, a JavaScript function, "
+                                             "or explicitly prefixed with 'js:' or 'css:'.")
+    
+    async def csp_compliant_wait(self, page: Page, user_wait_function: str, timeout: float = 30000):
+        wrapper_js = f"""
+        async () => {{
+            const userFunction = {user_wait_function};
+            const startTime = Date.now();
+            while (true) {{
+                if (await userFunction()) {{
+                    return true;
+                }}
+                if (Date.now() - startTime > {timeout}) {{
+                    throw new Error('Timeout waiting for condition');
+                }}
+                await new Promise(resolve => setTimeout(resolve, 100));
+            }}
+        }}
+        """
+        
+        try:
+            await page.evaluate(wrapper_js)
+        except TimeoutError:
+            raise TimeoutError(f"Timeout after {timeout}ms waiting for condition")
+        except Exception as e:
+            raise RuntimeError(f"Error in wait condition: {str(e)}")
+
+    async def process_iframes(self, page):
+        # Find all iframes
+        iframes = await page.query_selector_all('iframe')
+        
+        for i, iframe in enumerate(iframes):
+            try:
+                # Add a unique identifier to the iframe
+                await iframe.evaluate(f'(element) => element.id = "iframe-{i}"')
+                
+                # Get the frame associated with this iframe
+                frame = await iframe.content_frame()
+                
+                if frame:
+                    # Wait for the frame to load
+                    await frame.wait_for_load_state('load', timeout=30000)  # 30 seconds timeout
+                    
+                    # Extract the content of the iframe's body
+                    iframe_content = await frame.evaluate('() => document.body.innerHTML')
+                    
+                    # Generate a unique class name for this iframe
+                    class_name = f'extracted-iframe-content-{i}'
+                    
+                    # Replace the iframe with a div containing the extracted content
+                    _iframe = iframe_content.replace('`', '\\`')
+                    await page.evaluate(f"""
+                        () => {{
+                            const iframe = document.getElementById('iframe-{i}');
+                            const div = document.createElement('div');
+                            div.innerHTML = `{_iframe}`;
+                            div.className = '{class_name}';
+                            iframe.replaceWith(div);
+                        }}
+                    """)
+                else:
+                    print(f"Warning: Could not access content frame for iframe {i}")
+            except Exception as e:
+                print(f"Error processing iframe {i}: {str(e)}")
+
+        # Return the page object
+        return page  
+    
+    async def crawl(self, url: str, **kwargs) -> AsyncCrawlResponse:
+        response_headers = {}
+        status_code = None
+        
+        self._cleanup_expired_sessions()
+        session_id = kwargs.get("session_id")
+        if session_id:
+            context, page, _ = self.sessions.get(session_id, (None, None, None))
+            if not context:
+                context = await self.browser.new_context(
+                    user_agent=self.user_agent,
+                    viewport={"width": 1920, "height": 1080},
+                    proxy={"server": self.proxy} if self.proxy else None,
+                    accept_downloads=True,
+                    java_script_enabled=True
+                )
+                await context.add_cookies([{"name": "cookiesEnabled", "value": "true", "url": url}])
+                await context.set_extra_http_headers(self.headers)
+                page = await context.new_page()
+                self.sessions[session_id] = (context, page, time.time())
+        else:
+            context = await self.browser.new_context(
+                user_agent=self.user_agent,
+                viewport={"width": 1920, "height": 1080},
+                proxy={"server": self.proxy} if self.proxy else None
+            )
+            await context.set_extra_http_headers(self.headers)
+            
+            if kwargs.get("override_navigator", False) or kwargs.get("simulate_user", False) or kwargs.get("magic", False):
+                # Inject scripts to override navigator properties
+                await context.add_init_script("""
+                    // Pass the Permissions Test.
+                    const originalQuery = window.navigator.permissions.query;
+                    window.navigator.permissions.query = (parameters) => (
+                        parameters.name === 'notifications' ?
+                            Promise.resolve({ state: Notification.permission }) :
+                            originalQuery(parameters)
+                    );
+                    Object.defineProperty(navigator, 'webdriver', {
+                        get: () => undefined
+                    });
+                    window.navigator.chrome = {
+                        runtime: {},
+                        // Add other properties if necessary
+                    };
+                    Object.defineProperty(navigator, 'plugins', {
+                        get: () => [1, 2, 3, 4, 5],
+                    });
+                    Object.defineProperty(navigator, 'languages', {
+                        get: () => ['en-US', 'en'],
+                    });
+                    Object.defineProperty(document, 'hidden', {
+                        get: () => false
+                    });
+                    Object.defineProperty(document, 'visibilityState', {
+                        get: () => 'visible'
+                    });
+                """)
+            
+            page = await context.new_page()
+            # await stealth_async(page) #, stealth_config)
+
+        # Add console message and error logging
+        if kwargs.get("log_console", False):
+            page.on("console", lambda msg: print(f"Console: {msg.text}"))
+            page.on("pageerror", lambda exc: print(f"Page Error: {exc}"))
+        
+        try:
+            if self.verbose:
+                print(f"[LOG] 🕸️ Crawling {url} using AsyncPlaywrightCrawlerStrategy...")
+
+            if self.use_cached_html:
+                cache_file_path = os.path.join(
+                    Path.home(), ".crawl4ai", "cache", hashlib.md5(url.encode()).hexdigest()
+                )
+                if os.path.exists(cache_file_path):
+                    html = ""
+                    with open(cache_file_path, "r") as f:
+                        html = f.read()
+                    # retrieve response headers and status code from cache
+                    with open(cache_file_path + ".meta", "r") as f:
+                        meta = json.load(f)
+                        response_headers = meta.get("response_headers", {})
+                        status_code = meta.get("status_code")
+                    response = AsyncCrawlResponse(
+                        html=html, response_headers=response_headers, status_code=status_code
+                    )
+                    return response
+
+            if not kwargs.get("js_only", False):
+                await self.execute_hook('before_goto', page)
+                
+                response = await page.goto(
+                    url, wait_until="domcontentloaded", timeout=kwargs.get("page_timeout", 60000)
+                )
+                
+                # response = await page.goto("about:blank")
+                # await page.evaluate(f"window.location.href = '{url}'")
+                
+                await self.execute_hook('after_goto', page)
+                
+                # Get status code and headers
+                status_code = response.status
+                response_headers = response.headers
+            else:
+                status_code = 200
+                response_headers = {}
+
+            # Replace the current wait_for_selector line with this more robust check:
+            try:
+                # First wait for body to exist, regardless of visibility
+                await page.wait_for_selector('body', state='attached', timeout=30000)
+                
+                # Then wait for it to become visible by checking CSS
+                await page.wait_for_function("""
+                    () => {
+                        const body = document.body;
+                        const style = window.getComputedStyle(body);
+                        return style.display !== 'none' && 
+                            style.visibility !== 'hidden' && 
+                            style.opacity !== '0';
+                    }
+                """, timeout=30000)
+                
+            except Error as e:
+                # If waiting fails, let's try to diagnose the issue
+                visibility_info = await page.evaluate("""
+                    () => {
+                        const body = document.body;
+                        const style = window.getComputedStyle(body);
+                        return {
+                            display: style.display,
+                            visibility: style.visibility,
+                            opacity: style.opacity,
+                            hasContent: body.innerHTML.length,
+                            classList: Array.from(body.classList)
+                        }
+                    }
+                """)
+                
+                if self.verbose:
+                    print(f"Body visibility debug info: {visibility_info}")
+                
+                # Even if body is hidden, we might still want to proceed
+                if kwargs.get('ignore_body_visibility', True):
+                    if self.verbose:
+                        print("Proceeding despite hidden body...")
+                    pass
+                else:
+                    raise Error(f"Body element is hidden: {visibility_info}")
+            
+            await page.evaluate("window.scrollTo(0, document.body.scrollHeight)")
+
+            js_code = kwargs.get("js_code", kwargs.get("js", self.js_code))
+            if js_code:
+                if isinstance(js_code, str):
+                    await page.evaluate(js_code)
+                elif isinstance(js_code, list):
+                    for js in js_code:
+                        await page.evaluate(js)
+                
+                await page.wait_for_load_state('networkidle')
+                # Check for on execution event
+                await self.execute_hook('on_execution_started', page)
+                
+            if kwargs.get("simulate_user", False) or kwargs.get("magic", False):
+                # Simulate user interactions
+                await page.mouse.move(100, 100)
+                await page.mouse.down()
+                await page.mouse.up()
+                await page.keyboard.press('ArrowDown')
+
+            # Handle the wait_for parameter
+            wait_for = kwargs.get("wait_for")
+            if wait_for:
+                try:
+                    await self.smart_wait(page, wait_for, timeout=kwargs.get("page_timeout", 60000))
+                except Exception as e:
+                    raise RuntimeError(f"Wait condition failed: {str(e)}")
+
+            # Update image dimensions
+            update_image_dimensions_js = """
+            () => {
+                return new Promise((resolve) => {
+                    const filterImage = (img) => {
+                        // Filter out images that are too small
+                        if (img.width < 100 && img.height < 100) return false;
+                        
+                        // Filter out images that are not visible
+                        const rect = img.getBoundingClientRect();
+                        if (rect.width === 0 || rect.height === 0) return false;
+                        
+                        // Filter out images with certain class names (e.g., icons, thumbnails)
+                        if (img.classList.contains('icon') || img.classList.contains('thumbnail')) return false;
+                        
+                        // Filter out images with certain patterns in their src (e.g., placeholder images)
+                        if (img.src.includes('placeholder') || img.src.includes('icon')) return false;
+                        
+                        return true;
+                    };
+
+                    const images = Array.from(document.querySelectorAll('img')).filter(filterImage);
+                    let imagesLeft = images.length;
+                    
+                    if (imagesLeft === 0) {
+                        resolve();
+                        return;
+                    }
+
+                    const checkImage = (img) => {
+                        if (img.complete && img.naturalWidth !== 0) {
+                            img.setAttribute('width', img.naturalWidth);
+                            img.setAttribute('height', img.naturalHeight);
+                            imagesLeft--;
+                            if (imagesLeft === 0) resolve();
+                        }
+                    };
+
+                    images.forEach(img => {
+                        checkImage(img);
+                        if (!img.complete) {
+                            img.onload = () => {
+                                checkImage(img);
+                            };
+                            img.onerror = () => {
+                                imagesLeft--;
+                                if (imagesLeft === 0) resolve();
+                            };
+                        }
+                    });
+
+                    // Fallback timeout of 5 seconds
+                    // setTimeout(() => resolve(), 5000);
+                    resolve();
+                });
+            }
+            """
+            await page.evaluate(update_image_dimensions_js)
+
+            # Wait a bit for any onload events to complete
+            await page.wait_for_timeout(100)
+
+            # Process iframes
+            if kwargs.get("process_iframes", False):
+                page = await self.process_iframes(page)
+            
+            await self.execute_hook('before_retrieve_html', page)
+            # Check if delay_before_return_html is set then wait for that time
+            delay_before_return_html = kwargs.get("delay_before_return_html")
+            if delay_before_return_html:
+                await asyncio.sleep(delay_before_return_html)
+                
+            # Check for remove_overlay_elements parameter
+            if kwargs.get("remove_overlay_elements", False):
+                await self.remove_overlay_elements(page)
+            
+            html = await page.content()
+            await self.execute_hook('before_return_html', page, html)
+            
+            # Check if kwargs has screenshot=True then take screenshot
+            screenshot_data = None
+            if kwargs.get("screenshot"):
+                # Check we have screenshot_wait_for parameter, if we have simply wait for that time
+                screenshot_wait_for = kwargs.get("screenshot_wait_for")
+                if screenshot_wait_for:
+                    await asyncio.sleep(screenshot_wait_for)
+                screenshot_data = await self.take_screenshot(page)          
+
+            if self.verbose:
+                print(f"[LOG] ✅ Crawled {url} successfully!")
+
+            if self.use_cached_html:
+                cache_file_path = os.path.join(
+                    Path.home(), ".crawl4ai", "cache", hashlib.md5(url.encode()).hexdigest()
+                )
+                with open(cache_file_path, "w", encoding="utf-8") as f:
+                    f.write(html)
+                # store response headers and status code in cache
+                with open(cache_file_path + ".meta", "w", encoding="utf-8") as f:
+                    json.dump({
+                        "response_headers": response_headers,
+                        "status_code": status_code
+                    }, f)
+
+            async def get_delayed_content(delay: float = 5.0) -> str:
+                if self.verbose:
+                    print(f"[LOG] Waiting for {delay} seconds before retrieving content for {url}")
+                await asyncio.sleep(delay)
+                return await page.content()
+                
+            response = AsyncCrawlResponse(
+                html=html, 
+                response_headers=response_headers, 
+                status_code=status_code,
+                screenshot=screenshot_data,
+                get_delayed_content=get_delayed_content
+            )
+            return response
+        except Error as e:
+            raise Error(f"[ERROR] 🚫 crawl(): Failed to crawl {url}: {str(e)}")
+        # finally:
+        #     if not session_id:
+        #         await page.close()
+        #         await context.close()
+
+    async def crawl_many(self, urls: List[str], **kwargs) -> List[AsyncCrawlResponse]:
+        semaphore_count = kwargs.get('semaphore_count', 5)  # Adjust as needed
+        semaphore = asyncio.Semaphore(semaphore_count)
+
+        async def crawl_with_semaphore(url):
+            async with semaphore:
+                return await self.crawl(url, **kwargs)
+
+        tasks = [crawl_with_semaphore(url) for url in urls]
+        results = await asyncio.gather(*tasks, return_exceptions=True)
+        return [result if not isinstance(result, Exception) else str(result) for result in results]
+
+    async def remove_overlay_elements(self, page: Page) -> None:
+        """
+        Removes popup overlays, modals, cookie notices, and other intrusive elements from the page.
+        
+        Args:
+            page (Page): The Playwright page instance
+        """
+        remove_overlays_js = """
+        async () => {
+            // Function to check if element is visible
+            const isVisible = (elem) => {
+                const style = window.getComputedStyle(elem);
+                return style.display !== 'none' && 
+                       style.visibility !== 'hidden' && 
+                       style.opacity !== '0';
+            };
+
+            // Common selectors for popups and overlays
+            const commonSelectors = [
+                // Close buttons first
+                'button[class*="close" i]', 'button[class*="dismiss" i]', 
+                'button[aria-label*="close" i]', 'button[title*="close" i]',
+                'a[class*="close" i]', 'span[class*="close" i]',
+                
+                // Cookie notices
+                '[class*="cookie-banner" i]', '[id*="cookie-banner" i]',
+                '[class*="cookie-consent" i]', '[id*="cookie-consent" i]',
+                
+                // Newsletter/subscription dialogs
+                '[class*="newsletter" i]', '[class*="subscribe" i]',
+                
+                // Generic popups/modals
+                '[class*="popup" i]', '[class*="modal" i]', 
+                '[class*="overlay" i]', '[class*="dialog" i]',
+                '[role="dialog"]', '[role="alertdialog"]'
+            ];
+
+            // Try to click close buttons first
+            for (const selector of commonSelectors.slice(0, 6)) {
+                const closeButtons = document.querySelectorAll(selector);
+                for (const button of closeButtons) {
+                    if (isVisible(button)) {
+                        try {
+                            button.click();
+                            await new Promise(resolve => setTimeout(resolve, 100));
+                        } catch (e) {
+                            console.log('Error clicking button:', e);
+                        }
+                    }
+                }
+            }
+
+            // Remove remaining overlay elements
+            const removeOverlays = () => {
+                // Find elements with high z-index
+                const allElements = document.querySelectorAll('*');
+                for (const elem of allElements) {
+                    const style = window.getComputedStyle(elem);
+                    const zIndex = parseInt(style.zIndex);
+                    const position = style.position;
+                    
+                    if (
+                        isVisible(elem) && 
+                        (zIndex > 999 || position === 'fixed' || position === 'absolute') &&
+                        (
+                            elem.offsetWidth > window.innerWidth * 0.5 ||
+                            elem.offsetHeight > window.innerHeight * 0.5 ||
+                            style.backgroundColor.includes('rgba') ||
+                            parseFloat(style.opacity) < 1
+                        )
+                    ) {
+                        elem.remove();
+                    }
+                }
+
+                // Remove elements matching common selectors
+                for (const selector of commonSelectors) {
+                    const elements = document.querySelectorAll(selector);
+                    elements.forEach(elem => {
+                        if (isVisible(elem)) {
+                            elem.remove();
+                        }
+                    });
+                }
+            };
+
+            // Remove overlay elements
+            removeOverlays();
+
+            // Remove any fixed/sticky position elements at the top/bottom
+            const removeFixedElements = () => {
+                const elements = document.querySelectorAll('*');
+                elements.forEach(elem => {
+                    const style = window.getComputedStyle(elem);
+                    if (
+                        (style.position === 'fixed' || style.position === 'sticky') &&
+                        isVisible(elem)
+                    ) {
+                        elem.remove();
+                    }
+                });
+            };
+
+            removeFixedElements();
+            
+            // Remove empty block elements as: div, p, span, etc.
+            const removeEmptyBlockElements = () => {
+                const blockElements = document.querySelectorAll('div, p, span, section, article, header, footer, aside, nav, main, ul, ol, li, dl, dt, dd, h1, h2, h3, h4, h5, h6');
+                blockElements.forEach(elem => {
+                    if (elem.innerText.trim() === '') {
+                        elem.remove();
+                    }
+                });
+            };
+
+            // Remove margin-right and padding-right from body (often added by modal scripts)
+            document.body.style.marginRight = '0px';
+            document.body.style.paddingRight = '0px';
+            document.body.style.overflow = 'auto';
+
+            // Wait a bit for any animations to complete
+            await new Promise(resolve => setTimeout(resolve, 100));
+        }
+        """
+        
+        try:
+            await page.evaluate(remove_overlays_js)
+            await page.wait_for_timeout(500)  # Wait for any animations to complete
+        except Exception as e:
+            if self.verbose:
+                print(f"Warning: Failed to remove overlay elements: {str(e)}")
+
+    async def take_screenshot(self, page: Page) -> str:
+        try:
+            # The page is already loaded, just take the screenshot
+            screenshot = await page.screenshot(full_page=True)
+            return base64.b64encode(screenshot).decode('utf-8')
+        except Exception as e:
+            error_message = f"Failed to take screenshot: {str(e)}"
+            print(error_message)
+
+            # Generate an error image
+            img = Image.new('RGB', (800, 600), color='black')
+            draw = ImageDraw.Draw(img)
+            font = ImageFont.load_default()
+            draw.text((10, 10), error_message, fill=(255, 255, 255), font=font)
+            
+            buffered = BytesIO()
+            img.save(buffered, format="JPEG")
+            return base64.b64encode(buffered.getvalue()).decode('utf-8')
+        finally:
+            await page.close()
+

crawl4ai/async_database.py

@@ -0,0 +1,192 @@
+import os
+from pathlib import Path
+import aiosqlite
+import asyncio
+from typing import Optional, Tuple, Dict
+from contextlib import asynccontextmanager
+import logging
+
+# Set up logging
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+DB_PATH = os.path.join(Path.home(), ".crawl4ai")
+os.makedirs(DB_PATH, exist_ok=True)
+DB_PATH = os.path.join(DB_PATH, "crawl4ai.db")
+
+class AsyncDatabaseManager:
+    def __init__(self, pool_size: int = 10, max_retries: int = 3):
+        self.db_path = DB_PATH
+        self.pool_size = pool_size
+        self.max_retries = max_retries
+        self.connection_pool: Dict[int, aiosqlite.Connection] = {}
+        self.pool_lock = asyncio.Lock()
+        self.connection_semaphore = asyncio.Semaphore(pool_size)
+        
+    async def initialize(self):
+        """Initialize the database and connection pool"""
+        await self.ainit_db()
+        
+    async def cleanup(self):
+        """Cleanup connections when shutting down"""
+        async with self.pool_lock:
+            for conn in self.connection_pool.values():
+                await conn.close()
+            self.connection_pool.clear()
+
+    @asynccontextmanager
+    async def get_connection(self):
+        """Connection pool manager"""
+        async with self.connection_semaphore:
+            task_id = id(asyncio.current_task())
+            try:
+                async with self.pool_lock:
+                    if task_id not in self.connection_pool:
+                        conn = await aiosqlite.connect(
+                            self.db_path,
+                            timeout=30.0
+                        )
+                        await conn.execute('PRAGMA journal_mode = WAL')
+                        await conn.execute('PRAGMA busy_timeout = 5000')
+                        self.connection_pool[task_id] = conn
+                    
+                yield self.connection_pool[task_id]
+                
+            except Exception as e:
+                logger.error(f"Connection error: {e}")
+                raise
+            finally:
+                async with self.pool_lock:
+                    if task_id in self.connection_pool:
+                        await self.connection_pool[task_id].close()
+                        del self.connection_pool[task_id]
+
+    async def execute_with_retry(self, operation, *args):
+        """Execute database operations with retry logic"""
+        for attempt in range(self.max_retries):
+            try:
+                async with self.get_connection() as db:
+                    result = await operation(db, *args)
+                    await db.commit()
+                    return result
+            except Exception as e:
+                if attempt == self.max_retries - 1:
+                    logger.error(f"Operation failed after {self.max_retries} attempts: {e}")
+                    raise
+                await asyncio.sleep(1 * (attempt + 1))  # Exponential backoff
+
+    async def ainit_db(self):
+        """Initialize database schema"""
+        async def _init(db):
+            await db.execute('''
+                CREATE TABLE IF NOT EXISTS crawled_data (
+                    url TEXT PRIMARY KEY,
+                    html TEXT,
+                    cleaned_html TEXT,
+                    markdown TEXT,
+                    extracted_content TEXT,
+                    success BOOLEAN,
+                    media TEXT DEFAULT "{}",
+                    links TEXT DEFAULT "{}",
+                    metadata TEXT DEFAULT "{}",
+                    screenshot TEXT DEFAULT ""
+                )
+            ''')
+        
+        await self.execute_with_retry(_init)
+        await self.update_db_schema()
+
+    async def update_db_schema(self):
+        """Update database schema if needed"""
+        async def _check_columns(db):
+            cursor = await db.execute("PRAGMA table_info(crawled_data)")
+            columns = await cursor.fetchall()
+            return [column[1] for column in columns]
+
+        column_names = await self.execute_with_retry(_check_columns)
+        
+        for column in ['media', 'links', 'metadata', 'screenshot']:
+            if column not in column_names:
+                await self.aalter_db_add_column(column)
+
+    async def aalter_db_add_column(self, new_column: str):
+        """Add new column to the database"""
+        async def _alter(db):
+            await db.execute(f'ALTER TABLE crawled_data ADD COLUMN {new_column} TEXT DEFAULT ""')
+            logger.info(f"Added column '{new_column}' to the database.")
+
+        await self.execute_with_retry(_alter)
+
+    async def aget_cached_url(self, url: str) -> Optional[Tuple[str, str, str, str, str, str, str, bool, str]]:
+        """Retrieve cached URL data"""
+        async def _get(db):
+            async with db.execute(
+                'SELECT url, html, cleaned_html, markdown, extracted_content, success, media, links, metadata, screenshot FROM crawled_data WHERE url = ?',
+                (url,)
+            ) as cursor:
+                return await cursor.fetchone()
+
+        try:
+            return await self.execute_with_retry(_get)
+        except Exception as e:
+            logger.error(f"Error retrieving cached URL: {e}")
+            return None
+
+    async def acache_url(self, url: str, html: str, cleaned_html: str, markdown: str, extracted_content: str, success: bool, media: str = "{}", links: str = "{}", metadata: str = "{}", screenshot: str = ""):
+        """Cache URL data with retry logic"""
+        async def _cache(db):
+            await db.execute('''
+                INSERT INTO crawled_data (url, html, cleaned_html, markdown, extracted_content, success, media, links, metadata, screenshot)
+                VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                ON CONFLICT(url) DO UPDATE SET
+                    html = excluded.html,
+                    cleaned_html = excluded.cleaned_html,
+                    markdown = excluded.markdown,
+                    extracted_content = excluded.extracted_content,
+                    success = excluded.success,
+                    media = excluded.media,      
+                    links = excluded.links,    
+                    metadata = excluded.metadata,      
+                    screenshot = excluded.screenshot
+            ''', (url, html, cleaned_html, markdown, extracted_content, success, media, links, metadata, screenshot))
+
+        try:
+            await self.execute_with_retry(_cache)
+        except Exception as e:
+            logger.error(f"Error caching URL: {e}")
+
+    async def aget_total_count(self) -> int:
+        """Get total number of cached URLs"""
+        async def _count(db):
+            async with db.execute('SELECT COUNT(*) FROM crawled_data') as cursor:
+                result = await cursor.fetchone()
+                return result[0] if result else 0
+
+        try:
+            return await self.execute_with_retry(_count)
+        except Exception as e:
+            logger.error(f"Error getting total count: {e}")
+            return 0
+
+    async def aclear_db(self):
+        """Clear all data from the database"""
+        async def _clear(db):
+            await db.execute('DELETE FROM crawled_data')
+
+        try:
+            await self.execute_with_retry(_clear)
+        except Exception as e:
+            logger.error(f"Error clearing database: {e}")
+
+    async def aflush_db(self):
+        """Drop the entire table"""
+        async def _flush(db):
+            await db.execute('DROP TABLE IF EXISTS crawled_data')
+
+        try:
+            await self.execute_with_retry(_flush)
+        except Exception as e:
+            logger.error(f"Error flushing database: {e}")
+
+# Create a singleton instance
+async_db_manager = AsyncDatabaseManager()

crawl4ai/async_webcrawler.py

@@ -0,0 +1,289 @@
+import os
+import time
+from pathlib import Path
+from typing import Optional
+import json
+import asyncio
+from .models import CrawlResult
+from .async_database import async_db_manager
+from .chunking_strategy import *
+from .extraction_strategy import *
+from .async_crawler_strategy import AsyncCrawlerStrategy, AsyncPlaywrightCrawlerStrategy, AsyncCrawlResponse
+from .content_scrapping_strategy import WebScrappingStrategy
+from .config import MIN_WORD_THRESHOLD, IMAGE_DESCRIPTION_MIN_WORD_THRESHOLD
+from .utils import (
+    sanitize_input_encode,
+    InvalidCSSSelectorError,
+    format_html
+)
+from ._version import __version__ as crawl4ai_version
+
+class AsyncWebCrawler:
+    def __init__(
+        self,
+        crawler_strategy: Optional[AsyncCrawlerStrategy] = None,
+        always_by_pass_cache: bool = False,
+        base_directory: str = str(Path.home()),
+        **kwargs,
+    ):
+        self.crawler_strategy = crawler_strategy or AsyncPlaywrightCrawlerStrategy(
+            **kwargs
+        )
+        self.always_by_pass_cache = always_by_pass_cache
+        # self.crawl4ai_folder = os.path.join(Path.home(), ".crawl4ai")
+        self.crawl4ai_folder = os.path.join(base_directory, ".crawl4ai")
+        os.makedirs(self.crawl4ai_folder, exist_ok=True)
+        os.makedirs(f"{self.crawl4ai_folder}/cache", exist_ok=True)
+        self.ready = False
+        self.verbose = kwargs.get("verbose", False)
+
+    async def __aenter__(self):
+        await self.crawler_strategy.__aenter__()
+        await self.awarmup()
+        return self
+
+    async def __aexit__(self, exc_type, exc_val, exc_tb):
+        await self.crawler_strategy.__aexit__(exc_type, exc_val, exc_tb)
+
+    async def awarmup(self):
+        # Print a message for crawl4ai and its version
+        print(f"[LOG] 🚀 Crawl4AI {crawl4ai_version}")
+        if self.verbose:
+            print("[LOG] 🌤️  Warming up the AsyncWebCrawler")
+        # await async_db_manager.ainit_db()
+        await async_db_manager.initialize()
+        await self.arun(
+            url="https://google.com/",
+            word_count_threshold=5,
+            bypass_cache=False,
+            verbose=False,
+        )
+        self.ready = True
+        if self.verbose:
+            print("[LOG] 🌞 AsyncWebCrawler is ready to crawl")
+
+    async def arun(
+        self,
+        url: str,
+        word_count_threshold=MIN_WORD_THRESHOLD,
+        extraction_strategy: ExtractionStrategy = None,
+        chunking_strategy: ChunkingStrategy = RegexChunking(),
+        bypass_cache: bool = False,
+        css_selector: str = None,
+        screenshot: bool = False,
+        user_agent: str = None,
+        verbose=True,
+        **kwargs,
+    ) -> CrawlResult:
+        try:
+            extraction_strategy = extraction_strategy or NoExtractionStrategy()
+            extraction_strategy.verbose = verbose
+            if not isinstance(extraction_strategy, ExtractionStrategy):
+                raise ValueError("Unsupported extraction strategy")
+            if not isinstance(chunking_strategy, ChunkingStrategy):
+                raise ValueError("Unsupported chunking strategy")
+            
+            word_count_threshold = max(word_count_threshold, MIN_WORD_THRESHOLD)
+
+            async_response: AsyncCrawlResponse = None
+            cached = None
+            screenshot_data = None
+            extracted_content = None
+            if not bypass_cache and not self.always_by_pass_cache:
+                cached = await async_db_manager.aget_cached_url(url)
+
+            if kwargs.get("warmup", True) and not self.ready:
+                return None
+
+            if cached:
+                html = sanitize_input_encode(cached[1])
+                extracted_content = sanitize_input_encode(cached[4])
+                if screenshot:
+                    screenshot_data = cached[9]
+                    if not screenshot_data:
+                        cached = None
+
+            if not cached or not html:
+                t1 = time.time()
+                if user_agent:
+                    self.crawler_strategy.update_user_agent(user_agent)
+                async_response: AsyncCrawlResponse = await self.crawler_strategy.crawl(url, screenshot=screenshot, **kwargs)
+                html = sanitize_input_encode(async_response.html)
+                screenshot_data = async_response.screenshot
+                t2 = time.time()
+                if verbose:
+                    print(
+                        f"[LOG] 🚀 Crawling done for {url}, success: {bool(html)}, time taken: {t2 - t1:.2f} seconds"
+                    )
+
+            crawl_result = await self.aprocess_html(
+                url,
+                html,
+                extracted_content,
+                word_count_threshold,
+                extraction_strategy,
+                chunking_strategy,
+                css_selector,
+                screenshot_data,
+                verbose,
+                bool(cached),
+                async_response=async_response,
+                bypass_cache=bypass_cache,
+                **kwargs,
+            )
+            crawl_result.status_code = async_response.status_code if async_response else 200
+            crawl_result.response_headers = async_response.response_headers if async_response else {}
+            crawl_result.success = bool(html)
+            crawl_result.session_id = kwargs.get("session_id", None)
+            return crawl_result
+        except Exception as e:
+            if not hasattr(e, "msg"):
+                e.msg = str(e)
+            print(f"[ERROR] 🚫 arun(): Failed to crawl {url}, error: {e.msg}")
+            return CrawlResult(url=url, html="", markdown = f"[ERROR] 🚫 arun(): Failed to crawl {url}, error: {e.msg}", success=False, error_message=e.msg)
+
+    async def arun_many(
+        self,
+        urls: List[str],
+        word_count_threshold=MIN_WORD_THRESHOLD,
+        extraction_strategy: ExtractionStrategy = None,
+        chunking_strategy: ChunkingStrategy = RegexChunking(),
+        bypass_cache: bool = False,
+        css_selector: str = None,
+        screenshot: bool = False,
+        user_agent: str = None,
+        verbose=True,
+        **kwargs,
+    ) -> List[CrawlResult]:
+        tasks = [
+            self.arun(
+                url,
+                word_count_threshold,
+                extraction_strategy,
+                chunking_strategy,
+                bypass_cache,
+                css_selector,
+                screenshot,
+                user_agent,
+                verbose,
+                **kwargs
+            )
+            for url in urls
+        ]
+        return await asyncio.gather(*tasks)
+
+    async def aprocess_html(
+        self,
+        url: str,
+        html: str,
+        extracted_content: str,
+        word_count_threshold: int,
+        extraction_strategy: ExtractionStrategy,
+        chunking_strategy: ChunkingStrategy,
+        css_selector: str,
+        screenshot: str,
+        verbose: bool,
+        is_cached: bool,
+        **kwargs,
+    ) -> CrawlResult:
+        t = time.time()
+        # Extract content from HTML
+        try:
+            t1 = time.time()
+            scrapping_strategy = WebScrappingStrategy()
+            # result = await scrapping_strategy.ascrap(
+            result = scrapping_strategy.scrap(
+                url,
+                html,
+                word_count_threshold=word_count_threshold,
+                css_selector=css_selector,
+                only_text=kwargs.get("only_text", False),
+                image_description_min_word_threshold=kwargs.get(
+                    "image_description_min_word_threshold", IMAGE_DESCRIPTION_MIN_WORD_THRESHOLD
+                ),
+                **kwargs,
+            )
+            if verbose:
+                print(
+                    f"[LOG] 🚀 Content extracted for {url}, success: True, time taken: {time.time() - t1:.2f} seconds"
+                )
+
+            if result is None:
+                raise ValueError(f"Process HTML, Failed to extract content from the website: {url}")
+        except InvalidCSSSelectorError as e:
+            raise ValueError(str(e))
+        except Exception as e:
+            raise ValueError(f"Process HTML, Failed to extract content from the website: {url}, error: {str(e)}")
+
+        cleaned_html = sanitize_input_encode(result.get("cleaned_html", ""))
+        markdown = sanitize_input_encode(result.get("markdown", ""))
+        fit_markdown = sanitize_input_encode(result.get("fit_markdown", ""))
+        fit_html = sanitize_input_encode(result.get("fit_html", ""))
+        media = result.get("media", [])
+        links = result.get("links", [])
+        metadata = result.get("metadata", {})
+
+        if extracted_content is None and extraction_strategy and chunking_strategy:
+            if verbose:
+                print(
+                    f"[LOG] 🔥 Extracting semantic blocks for {url}, Strategy: {self.__class__.__name__}"
+                )
+
+            # Check if extraction strategy is type of JsonCssExtractionStrategy
+            if isinstance(extraction_strategy, JsonCssExtractionStrategy) or isinstance(extraction_strategy, JsonCssExtractionStrategy):
+                extraction_strategy.verbose = verbose
+                extracted_content = extraction_strategy.run(url, [html])
+                extracted_content = json.dumps(extracted_content, indent=4, default=str, ensure_ascii=False)
+            else:
+                sections = chunking_strategy.chunk(markdown)
+                extracted_content = extraction_strategy.run(url, sections)
+                extracted_content = json.dumps(extracted_content, indent=4, default=str, ensure_ascii=False)
+
+        if verbose:
+            print(
+                f"[LOG] 🚀 Extraction done for {url}, time taken: {time.time() - t:.2f} seconds."
+            )
+
+        screenshot = None if not screenshot else screenshot
+
+        if not is_cached or kwargs.get("bypass_cache", False) or self.always_by_pass_cache:
+            await async_db_manager.acache_url(
+                url,
+                html,
+                cleaned_html,
+                markdown,
+                extracted_content,
+                True,
+                json.dumps(media),
+                json.dumps(links),
+                json.dumps(metadata),
+                screenshot=screenshot,
+            )
+
+        return CrawlResult(
+            url=url,
+            html=html,
+            cleaned_html=format_html(cleaned_html),
+            markdown=markdown,
+            fit_markdown=fit_markdown,
+            fit_html= fit_html,
+            media=media,
+            links=links,
+            metadata=metadata,
+            screenshot=screenshot,
+            extracted_content=extracted_content,
+            success=True,
+            error_message="",
+        )
+
+    async def aclear_cache(self):
+        # await async_db_manager.aclear_db()
+        await async_db_manager.cleanup()
+
+    async def aflush_cache(self):
+        await async_db_manager.aflush_db()
+
+    async def aget_cache_size(self):
+        return await async_db_manager.aget_total_count()
+
+

crawl4ai/chunking_strategy.py

@@ -3,6 +3,7 @@ import re
 from collections import Counter
 import string
 from .model_loader import load_nltk_punkt
+from .utils import *
 
 # Define the abstract base class for chunking strategies
 class ChunkingStrategy(ABC):
@@ -54,7 +55,7 @@ class TopicSegmentationChunking(ChunkingStrategy):
     
     def __init__(self, num_keywords=3, **kwargs):
         import nltk as nl
-        self.tokenizer = nl.toknize.TextTilingTokenizer()
+        self.tokenizer = nl.tokenize.TextTilingTokenizer()
         self.num_keywords = num_keywords
 
     def chunk(self, text: str) -> list:
@@ -83,6 +84,12 @@ class TopicSegmentationChunking(ChunkingStrategy):
 # Fixed-length word chunks
 class FixedLengthWordChunking(ChunkingStrategy):
     def __init__(self, chunk_size=100, **kwargs):
+        """
+        Initialize the fixed-length word chunking strategy with the given chunk size.
+        
+        Args:
+            chunk_size (int): The size of each chunk in words.
+        """
         self.chunk_size = chunk_size
 
     def chunk(self, text: str) -> list:
@@ -92,14 +99,64 @@ class FixedLengthWordChunking(ChunkingStrategy):
 # Sliding window chunking
 class SlidingWindowChunking(ChunkingStrategy):
     def __init__(self, window_size=100, step=50, **kwargs):
+        """
+        Initialize the sliding window chunking strategy with the given window size and
+        step size.
+        
+        Args:
+            window_size (int): The size of the sliding window in words.
+            step (int): The step size for sliding the window in words.
+        """
         self.window_size = window_size
         self.step = step
 
     def chunk(self, text: str) -> list:
         words = text.split()
         chunks = []
-        for i in range(0, len(words), self.step):
-            chunks.append(' '.join(words[i:i + self.window_size]))
+        
+        if len(words) <= self.window_size:
+            return [text]
+        
+        for i in range(0, len(words) - self.window_size + 1, self.step):
+            chunk = ' '.join(words[i:i + self.window_size])
+            chunks.append(chunk)
+        
+        # Handle the last chunk if it doesn't align perfectly
+        if i + self.window_size < len(words):
+            chunks.append(' '.join(words[-self.window_size:]))
+        
         return chunks
     
 
+class OverlappingWindowChunking(ChunkingStrategy):
+    def __init__(self, window_size=1000, overlap=100, **kwargs):
+        """
+        Initialize the overlapping window chunking strategy with the given window size and
+        overlap size.
+        
+        Args:
+            window_size (int): The size of the window in words.
+            overlap (int): The size of the overlap between consecutive chunks in words.
+        """
+        self.window_size = window_size
+        self.overlap = overlap
+
+    def chunk(self, text: str) -> list:
+        words = text.split()
+        chunks = []
+        
+        if len(words) <= self.window_size:
+            return [text]
+        
+        start = 0
+        while start < len(words):
+            end = start + self.window_size
+            chunk = ' '.join(words[start:end])
+            chunks.append(chunk)
+            
+            if end >= len(words):
+                break
+            
+            start = end - self.overlap
+        
+        return chunks

crawl4ai/config.py

@@ -4,26 +4,50 @@ from dotenv import load_dotenv
 load_dotenv()  # Load environment variables from .env file
 
 # Default provider, ONLY used when the extraction strategy is LLMExtractionStrategy
-DEFAULT_PROVIDER = "openai/gpt-4-turbo"
+DEFAULT_PROVIDER = "openai/gpt-4o-mini"
 MODEL_REPO_BRANCH = "new-release-0.0.2"
 # Provider-model dictionary, ONLY used when the extraction strategy is LLMExtractionStrategy
 PROVIDER_MODELS = {
     "ollama/llama3": "no-token-needed", # Any model from Ollama no need for API token
     "groq/llama3-70b-8192": os.getenv("GROQ_API_KEY"),
     "groq/llama3-8b-8192": os.getenv("GROQ_API_KEY"),
-    "openai/gpt-3.5-turbo": os.getenv("OPENAI_API_KEY"),
-    "openai/gpt-4-turbo": os.getenv("OPENAI_API_KEY"),
+    "openai/gpt-4o-mini": os.getenv("OPENAI_API_KEY"),
     "openai/gpt-4o": os.getenv("OPENAI_API_KEY"),
     "anthropic/claude-3-haiku-20240307": os.getenv("ANTHROPIC_API_KEY"),
     "anthropic/claude-3-opus-20240229": os.getenv("ANTHROPIC_API_KEY"),
     "anthropic/claude-3-sonnet-20240229": os.getenv("ANTHROPIC_API_KEY"),
+    "anthropic/claude-3-5-sonnet-20240620": os.getenv("ANTHROPIC_API_KEY"),
 }
 
-
 # Chunk token threshold
-CHUNK_TOKEN_THRESHOLD = 500
+CHUNK_TOKEN_THRESHOLD = 2 ** 11 # 2048 tokens
 OVERLAP_RATE = 0.1
 WORD_TOKEN_RATE = 1.3
 
 # Threshold for the minimum number of word in a HTML tag to be considered 
 MIN_WORD_THRESHOLD = 1
+IMAGE_DESCRIPTION_MIN_WORD_THRESHOLD = 1
+
+IMPORTANT_ATTRS = ['src', 'href', 'alt', 'title', 'width', 'height'] 
+ONLY_TEXT_ELIGIBLE_TAGS = ['b', 'i', 'u', 'span', 'del', 'ins', 'sub', 'sup', 'strong', 'em', 'code', 'kbd', 'var', 's', 'q', 'abbr', 'cite', 'dfn', 'time', 'small', 'mark']
+SOCIAL_MEDIA_DOMAINS = [
+                            'facebook.com',
+                            'twitter.com',
+                            'x.com',
+                            'linkedin.com',
+                            'instagram.com',
+                            'pinterest.com',
+                            'tiktok.com',
+                            'snapchat.com',
+                            'reddit.com',
+                        ]
+
+# Threshold for the Image extraction - Range is 1 to 6
+# Images are scored based on point based system, to filter based on usefulness. Points are assigned
+# to each image based on the following aspects.
+# If either height or width exceeds 150px
+# If image size is greater than 10Kb
+# If alt property is set
+# If image format is in jpg, png or webp
+# If image is in the first half of the total images extracted from the page
+IMAGE_SCORE_THRESHOLD = 2

crawl4ai/content_cleaning_strategy.py

@@ -0,0 +1,196 @@
+from bs4 import BeautifulSoup, Tag
+import re
+from typing import Optional
+
+class ContentCleaningStrategy:
+    def __init__(self):
+        # Precompile regex patterns for performance
+        self.negative_patterns = re.compile(r'nav|footer|header|sidebar|ads|comment', re.I)
+        self.positive_patterns = re.compile(r'content|article|main|post', re.I)
+        self.priority_tags = {'article', 'main', 'section', 'div'}
+        self.non_content_tags = {'nav', 'footer', 'header', 'aside'}
+        # Thresholds
+        self.text_density_threshold = 9.0
+        self.min_word_count = 50
+        self.link_density_threshold = 0.2
+        self.max_dom_depth = 10  # To prevent excessive DOM traversal
+
+    def clean(self, clean_html: str) -> str:
+        """
+        Main function that takes cleaned HTML and returns super cleaned HTML.
+
+        Args:
+            clean_html (str): The cleaned HTML content.
+
+        Returns:
+            str: The super cleaned HTML containing only the main content.
+        """
+        try:
+            if not clean_html or not isinstance(clean_html, str):
+                return ''
+            soup = BeautifulSoup(clean_html, 'html.parser')
+            main_content = self.extract_main_content(soup)
+            if main_content:
+                super_clean_element = self.clean_element(main_content)
+                return str(super_clean_element)
+            else:
+                return ''
+        except Exception:
+            # Handle exceptions silently or log them as needed
+            return ''
+
+    def extract_main_content(self, soup: BeautifulSoup) -> Optional[Tag]:
+        """
+        Identifies and extracts the main content element from the HTML.
+
+        Args:
+            soup (BeautifulSoup): The parsed HTML soup.
+
+        Returns:
+            Optional[Tag]: The Tag object containing the main content, or None if not found.
+        """
+        candidates = []
+        for element in soup.find_all(self.priority_tags):
+            if self.is_non_content_tag(element):
+                continue
+            if self.has_negative_class_id(element):
+                continue
+            score = self.calculate_content_score(element)
+            candidates.append((score, element))
+        
+        if not candidates:
+            return None
+
+        # Sort candidates by score in descending order
+        candidates.sort(key=lambda x: x[0], reverse=True)
+        # Select the element with the highest score
+        best_element = candidates[0][1]
+        return best_element
+
+    def calculate_content_score(self, element: Tag) -> float:
+        """
+        Calculates a score for an element based on various heuristics.
+
+        Args:
+            element (Tag): The HTML element to score.
+
+        Returns:
+            float: The content score of the element.
+        """
+        score = 0.0
+
+        if self.is_priority_tag(element):
+            score += 5.0
+        if self.has_positive_class_id(element):
+            score += 3.0
+        if self.has_negative_class_id(element):
+            score -= 3.0
+        if self.is_high_text_density(element):
+            score += 2.0
+        if self.is_low_link_density(element):
+            score += 2.0
+        if self.has_sufficient_content(element):
+            score += 2.0
+        if self.has_headings(element):
+            score += 3.0
+
+        dom_depth = self.calculate_dom_depth(element)
+        score += min(dom_depth, self.max_dom_depth) * 0.5  # Adjust weight as needed
+
+        return score
+
+    def is_priority_tag(self, element: Tag) -> bool:
+        """Checks if the element is a priority tag."""
+        return element.name in self.priority_tags
+
+    def is_non_content_tag(self, element: Tag) -> bool:
+        """Checks if the element is a non-content tag."""
+        return element.name in self.non_content_tags
+
+    def has_negative_class_id(self, element: Tag) -> bool:
+        """Checks if the element has negative indicators in its class or id."""
+        class_id = ' '.join(filter(None, [
+            self.get_attr_str(element.get('class')),
+            element.get('id', '')
+        ]))
+        return bool(self.negative_patterns.search(class_id))
+
+    def has_positive_class_id(self, element: Tag) -> bool:
+        """Checks if the element has positive indicators in its class or id."""
+        class_id = ' '.join(filter(None, [
+            self.get_attr_str(element.get('class')),
+            element.get('id', '')
+        ]))
+        return bool(self.positive_patterns.search(class_id))
+
+    @staticmethod
+    def get_attr_str(attr) -> str:
+        """Converts an attribute value to a string."""
+        if isinstance(attr, list):
+            return ' '.join(attr)
+        elif isinstance(attr, str):
+            return attr
+        else:
+            return ''
+
+    def is_high_text_density(self, element: Tag) -> bool:
+        """Determines if the element has high text density."""
+        text_density = self.calculate_text_density(element)
+        return text_density > self.text_density_threshold
+
+    def calculate_text_density(self, element: Tag) -> float:
+        """Calculates the text density of an element."""
+        text_length = len(element.get_text(strip=True))
+        tag_count = len(element.find_all())
+        tag_count = tag_count or 1  # Prevent division by zero
+        return text_length / tag_count
+
+    def is_low_link_density(self, element: Tag) -> bool:
+        """Determines if the element has low link density."""
+        link_density = self.calculate_link_density(element)
+        return link_density < self.link_density_threshold
+
+    def calculate_link_density(self, element: Tag) -> float:
+        """Calculates the link density of an element."""
+        text = element.get_text(strip=True)
+        if not text:
+            return 0.0
+        link_text = ' '.join(a.get_text(strip=True) for a in element.find_all('a'))
+        return len(link_text) / len(text) if text else 0.0
+
+    def has_sufficient_content(self, element: Tag) -> bool:
+        """Checks if the element has sufficient word count."""
+        word_count = len(element.get_text(strip=True).split())
+        return word_count >= self.min_word_count
+
+    def calculate_dom_depth(self, element: Tag) -> int:
+        """Calculates the depth of an element in the DOM tree."""
+        depth = 0
+        current_element = element
+        while current_element.parent and depth < self.max_dom_depth:
+            depth += 1
+            current_element = current_element.parent
+        return depth
+
+    def has_headings(self, element: Tag) -> bool:
+        """Checks if the element contains heading tags."""
+        return bool(element.find(['h1', 'h2', 'h3']))
+
+    def clean_element(self, element: Tag) -> Tag:
+        """
+        Cleans the selected element by removing unnecessary attributes and nested non-content elements.
+
+        Args:
+            element (Tag): The HTML element to clean.
+
+        Returns:
+            Tag: The cleaned HTML element.
+        """
+        for tag in element.find_all(['script', 'style', 'aside']):
+            tag.decompose()
+        for tag in element.find_all():
+            attrs = dict(tag.attrs)
+            for attr in attrs:
+                if attr in ['style', 'onclick', 'onmouseover', 'align', 'bgcolor']:
+                    del tag.attrs[attr]
+        return element

crawl4ai/content_scrapping_strategy.py

@@ -0,0 +1,541 @@
+from abc import ABC, abstractmethod
+from typing import Dict, Any
+from bs4 import BeautifulSoup
+from concurrent.futures import ThreadPoolExecutor
+import asyncio, requests, re, os
+from .config import *
+from bs4 import element, NavigableString, Comment
+from urllib.parse import urljoin
+from requests.exceptions import InvalidSchema
+from .content_cleaning_strategy import ContentCleaningStrategy
+
+from .utils import (
+    sanitize_input_encode,
+    sanitize_html,
+    extract_metadata,
+    InvalidCSSSelectorError,
+    # CustomHTML2Text,
+    normalize_url,
+    is_external_url
+    
+)
+
+from .html2text import HTML2Text
+class CustomHTML2Text(HTML2Text):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.inside_pre = False
+        self.inside_code = False
+        self.preserve_tags = set()  # Set of tags to preserve
+        self.current_preserved_tag = None
+        self.preserved_content = []
+        self.preserve_depth = 0
+        
+        # Configuration options
+        self.skip_internal_links = False
+        self.single_line_break = False
+        self.mark_code = False
+        self.include_sup_sub = False
+        self.body_width = 0
+        self.ignore_mailto_links = True
+        self.ignore_links = False
+        self.escape_backslash = False
+        self.escape_dot = False
+        self.escape_plus = False
+        self.escape_dash = False
+        self.escape_snob = False
+
+    def update_params(self, **kwargs):
+        """Update parameters and set preserved tags."""
+        for key, value in kwargs.items():
+            if key == 'preserve_tags':
+                self.preserve_tags = set(value)
+            else:
+                setattr(self, key, value)
+
+    def handle_tag(self, tag, attrs, start):
+        # Handle preserved tags
+        if tag in self.preserve_tags:
+            if start:
+                if self.preserve_depth == 0:
+                    self.current_preserved_tag = tag
+                    self.preserved_content = []
+                    # Format opening tag with attributes
+                    attr_str = ''.join(f' {k}="{v}"' for k, v in attrs.items() if v is not None)
+                    self.preserved_content.append(f'<{tag}{attr_str}>')
+                self.preserve_depth += 1
+                return
+            else:
+                self.preserve_depth -= 1
+                if self.preserve_depth == 0:
+                    self.preserved_content.append(f'</{tag}>')
+                    # Output the preserved HTML block with proper spacing
+                    preserved_html = ''.join(self.preserved_content)
+                    self.o('\n' + preserved_html + '\n')
+                    self.current_preserved_tag = None
+                return
+
+        # If we're inside a preserved tag, collect all content
+        if self.preserve_depth > 0:
+            if start:
+                # Format nested tags with attributes
+                attr_str = ''.join(f' {k}="{v}"' for k, v in attrs.items() if v is not None)
+                self.preserved_content.append(f'<{tag}{attr_str}>')
+            else:
+                self.preserved_content.append(f'</{tag}>')
+            return
+
+        # Handle pre tags
+        if tag == 'pre':
+            if start:
+                self.o('```\n')
+                self.inside_pre = True
+            else:
+                self.o('\n```')
+                self.inside_pre = False
+        elif tag in ["h1", "h2", "h3", "h4", "h5", "h6"]:
+            pass
+        else:
+            super().handle_tag(tag, attrs, start)
+
+    def handle_data(self, data, entity_char=False):
+        """Override handle_data to capture content within preserved tags."""
+        if self.preserve_depth > 0:
+            self.preserved_content.append(data)
+            return
+        super().handle_data(data, entity_char)
+
+class ContentScrappingStrategy(ABC):
+    @abstractmethod
+    def scrap(self, url: str, html: str, **kwargs) -> Dict[str, Any]:
+        pass
+
+    @abstractmethod
+    async def ascrap(self, url: str, html: str, **kwargs) -> Dict[str, Any]:
+        pass
+
+class WebScrappingStrategy(ContentScrappingStrategy):
+    def scrap(self, url: str, html: str, **kwargs) -> Dict[str, Any]:
+        return self._get_content_of_website_optimized(url, html, is_async=False, **kwargs)
+
+    async def ascrap(self, url: str, html: str, **kwargs) -> Dict[str, Any]:
+        return await asyncio.to_thread(self._get_content_of_website_optimized, url, html, **kwargs)
+
+    def _get_content_of_website_optimized(self, url: str, html: str, word_count_threshold: int = MIN_WORD_THRESHOLD, css_selector: str = None, **kwargs) -> Dict[str, Any]:
+        success = True
+        if not html:
+            return None
+
+        soup = BeautifulSoup(html, 'html.parser')
+        body = soup.body
+        
+        
+        image_description_min_word_threshold = kwargs.get('image_description_min_word_threshold', IMAGE_DESCRIPTION_MIN_WORD_THRESHOLD)
+
+        for tag in kwargs.get('excluded_tags', []) or []:
+            for el in body.select(tag):
+                el.decompose()
+        
+        if css_selector:
+            selected_elements = body.select(css_selector)
+            if not selected_elements:
+                return {
+                    'markdown': '',
+                    'cleaned_html': '',
+                    'success': True,
+                    'media': {'images': [], 'videos': [], 'audios': []},
+                    'links': {'internal': [], 'external': []},
+                    'metadata': {},
+                    'message': f"No elements found for CSS selector: {css_selector}"
+                }
+                # raise InvalidCSSSelectorError(f"Invalid CSS selector, No elements found for CSS selector: {css_selector}")
+            body = soup.new_tag('div')
+            for el in selected_elements:
+                body.append(el)
+
+        links = {'internal': [], 'external': []}
+        media = {'images': [], 'videos': [], 'audios': []}
+        internal_links_dict = {}
+        external_links_dict = {}
+
+        # Extract meaningful text for media files from closest parent
+        def find_closest_parent_with_useful_text(tag):
+                current_tag = tag
+                while current_tag:
+                    current_tag = current_tag.parent
+                    # Get the text content of the parent tag
+                    if current_tag:
+                        text_content = current_tag.get_text(separator=' ',strip=True)
+                        # Check if the text content has at least word_count_threshold
+                        if len(text_content.split()) >= image_description_min_word_threshold:
+                            return text_content
+                return None
+
+        def process_image(img, url, index, total_images):
+            #Check if an image has valid display and inside undesired html elements
+            def is_valid_image(img, parent, parent_classes):
+                style = img.get('style', '')
+                src = img.get('src', '')
+                classes_to_check = ['button', 'icon', 'logo']
+                tags_to_check = ['button', 'input']
+                return all([
+                    'display:none' not in style,
+                    src,
+                    not any(s in var for var in [src, img.get('alt', ''), *parent_classes] for s in classes_to_check),
+                    parent.name not in tags_to_check
+                ])
+
+            #Score an image for it's usefulness
+            def score_image_for_usefulness(img, base_url, index, images_count):
+                # Function to parse image height/width value and units
+                def parse_dimension(dimension):
+                    if dimension:
+                        match = re.match(r"(\d+)(\D*)", dimension)
+                        if match:
+                            number = int(match.group(1))
+                            unit = match.group(2) or 'px'  # Default unit is 'px' if not specified
+                            return number, unit
+                    return None, None
+
+                # Fetch image file metadata to extract size and extension
+                def fetch_image_file_size(img, base_url):
+                    #If src is relative path construct full URL, if not it may be CDN URL
+                    img_url = urljoin(base_url,img.get('src'))
+                    try:
+                        response = requests.head(img_url)
+                        if response.status_code == 200:
+                            return response.headers.get('Content-Length',None)
+                        else:
+                            print(f"Failed to retrieve file size for {img_url}")
+                            return None
+                    except InvalidSchema as e:
+                        return None
+                    finally:
+                        return
+
+                image_height = img.get('height')
+                height_value, height_unit = parse_dimension(image_height)
+                image_width =  img.get('width')
+                width_value, width_unit = parse_dimension(image_width)
+                image_size = 0 #int(fetch_image_file_size(img,base_url) or 0)
+                image_src = img.get('src','')
+                if "data:image/" in image_src:
+                    image_format = image_src.split(',')[0].split(';')[0].split('/')[1]
+                else:
+                    image_format = os.path.splitext(img.get('src',''))[1].lower()
+                # Remove . from format
+                image_format = image_format.strip('.').split('?')[0]
+                score = 0
+                if height_value:
+                    if height_unit == 'px' and height_value > 150:
+                        score += 1
+                    if height_unit in ['%','vh','vmin','vmax'] and height_value >30:
+                        score += 1
+                if width_value:
+                    if width_unit == 'px' and width_value > 150:
+                        score += 1
+                    if width_unit in ['%','vh','vmin','vmax'] and width_value >30:
+                        score += 1
+                if image_size > 10000:
+                    score += 1
+                if img.get('alt') != '':
+                    score+=1
+                if any(image_format==format for format in ['jpg','png','webp']):
+                    score+=1
+                if index/images_count<0.5:
+                    score+=1
+                return score
+
+            
+            
+            if not is_valid_image(img, img.parent, img.parent.get('class', [])):
+                return None
+            score = score_image_for_usefulness(img, url, index, total_images)
+            if score <= IMAGE_SCORE_THRESHOLD:
+                return None
+            return {
+                'src': img.get('src', ''),
+                'data-src': img.get('data-src', ''),
+                'alt': img.get('alt', ''),
+                'desc': find_closest_parent_with_useful_text(img),
+                'score': score,
+                'type': 'image'
+            }
+
+        def remove_unwanted_attributes(element, important_attrs, keep_data_attributes=False):
+            attrs_to_remove = []
+            for attr in element.attrs:
+                if attr not in important_attrs:
+                    if keep_data_attributes:
+                        if not attr.startswith('data-'):
+                            attrs_to_remove.append(attr)
+                    else:
+                        attrs_to_remove.append(attr)
+            
+            for attr in attrs_to_remove:
+                del element[attr]
+        
+        def process_element(element: element.PageElement) -> bool:
+            try:
+                if isinstance(element, NavigableString):
+                    if isinstance(element, Comment):
+                        element.extract()
+                    return False
+                
+                # if element.name == 'img':
+                #     process_image(element, url, 0, 1)
+                #     return True
+
+                if element.name in ['script', 'style', 'link', 'meta', 'noscript']:
+                    element.decompose()
+                    return False
+
+                keep_element = False
+                
+                exclude_social_media_domains = SOCIAL_MEDIA_DOMAINS + kwargs.get('exclude_social_media_domains', [])
+                exclude_social_media_domains = list(set(exclude_social_media_domains))
+
+                
+                try:
+                    if element.name == 'a' and element.get('href'):
+                        href = element.get('href', '').strip()
+                        if not href:  # Skip empty hrefs
+                            return False
+                            
+                        url_base = url.split('/')[2]
+                        
+                        # Normalize the URL
+                        try:
+                            normalized_href = normalize_url(href, url)
+                        except ValueError as e:
+                            # logging.warning(f"Invalid URL format: {href}, Error: {str(e)}")
+                            return False
+                            
+                        link_data = {
+                            'href': normalized_href,
+                            'text': element.get_text().strip(),
+                            'title': element.get('title', '').strip()
+                        }
+                        
+                        # Check for duplicates and add to appropriate dictionary
+                        is_external = is_external_url(normalized_href, url_base)
+                        if is_external:
+                            if normalized_href not in external_links_dict:
+                                external_links_dict[normalized_href] = link_data
+                        else:
+                            if normalized_href not in internal_links_dict:
+                                internal_links_dict[normalized_href] = link_data
+                                
+                        keep_element = True
+                        
+                        # Handle external link exclusions
+                        if is_external:
+                            if kwargs.get('exclude_external_links', False):
+                                element.decompose()
+                                return False
+                            elif kwargs.get('exclude_social_media_links', False):
+                                if any(domain in normalized_href.lower() for domain in exclude_social_media_domains):
+                                    element.decompose()
+                                    return False
+                            elif kwargs.get('exclude_domains', []):
+                                if any(domain in normalized_href.lower() for domain in kwargs.get('exclude_domains', [])):
+                                    element.decompose()
+                                    return False
+                                    
+                except Exception as e:
+                    raise Exception(f"Error processing links: {str(e)}")
+
+                try:
+                    if element.name == 'img':
+                        potential_sources = ['src', 'data-src', 'srcset' 'data-lazy-src', 'data-original']
+                        src = element.get('src', '')
+                        while not src and potential_sources:
+                            src = element.get(potential_sources.pop(0), '')
+                        if not src:
+                            element.decompose()
+                            return False
+                        
+                        # If it is srcset pick up the first image
+                        if 'srcset' in element.attrs:
+                            src = element.attrs['srcset'].split(',')[0].split(' ')[0]
+                            
+                        # Check flag if we should remove external images
+                        if kwargs.get('exclude_external_images', False):
+                            src_url_base = src.split('/')[2]
+                            url_base = url.split('/')[2]
+                            if url_base not in src_url_base:
+                                element.decompose()
+                                return False
+                            
+                        if not kwargs.get('exclude_external_images', False) and kwargs.get('exclude_social_media_links', False):
+                            src_url_base = src.split('/')[2]
+                            url_base = url.split('/')[2]
+                            if any(domain in src for domain in exclude_social_media_domains):
+                                element.decompose()
+                                return False
+                            
+                        # Handle exclude domains
+                        if kwargs.get('exclude_domains', []):
+                            if any(domain in src for domain in kwargs.get('exclude_domains', [])):
+                                element.decompose()
+                                return False
+                        
+                        return True  # Always keep image elements
+                except Exception as e:
+                    raise "Error processing images"
+                
+                
+                # Check if flag to remove all forms is set
+                if kwargs.get('remove_forms', False) and element.name == 'form':
+                    element.decompose()
+                    return False
+                
+                if element.name in ['video', 'audio']:
+                    media[f"{element.name}s"].append({
+                        'src': element.get('src'),
+                        'alt': element.get('alt'),
+                        'type': element.name,
+                        'description': find_closest_parent_with_useful_text(element)
+                    })
+                    source_tags = element.find_all('source')
+                    for source_tag in source_tags:
+                        media[f"{element.name}s"].append({
+                        'src': source_tag.get('src'),
+                        'alt': element.get('alt'),
+                        'type': element.name,
+                        'description': find_closest_parent_with_useful_text(element)
+                    })
+                    return True  # Always keep video and audio elements
+
+                if element.name in ONLY_TEXT_ELIGIBLE_TAGS:
+                    if kwargs.get('only_text', False):
+                        element.replace_with(element.get_text())
+
+                try:
+                    remove_unwanted_attributes(element, IMPORTANT_ATTRS, kwargs.get('keep_data_attributes', False))
+                except Exception as e:
+                    print('Error removing unwanted attributes:', str(e))
+                
+
+                # Process children
+                for child in list(element.children):
+                    if isinstance(child, NavigableString) and not isinstance(child, Comment):
+                        if len(child.strip()) > 0:
+                            keep_element = True
+                    else:
+                        if process_element(child):
+                            keep_element = True
+                    
+
+                # Check word count
+                if not keep_element:
+                    word_count = len(element.get_text(strip=True).split())
+                    keep_element = word_count >= word_count_threshold
+
+                if not keep_element:
+                    element.decompose()
+
+                return keep_element
+            except Exception as e:
+                print('Error processing element:', str(e))
+                return False
+
+        #process images by filtering and extracting contextual text from the page
+        # imgs = body.find_all('img')
+        # media['images'] = [
+        #     result for result in
+        #     (process_image(img, url, i, len(imgs)) for i, img in enumerate(imgs))
+        #     if result is not None
+        # ]
+        
+        process_element(body)
+        
+        # Update the links dictionary with unique links
+        links['internal'] = list(internal_links_dict.values())
+        links['external'] = list(external_links_dict.values())
+
+
+        # # Process images using ThreadPoolExecutor
+        imgs = body.find_all('img')
+        
+        with ThreadPoolExecutor() as executor:
+            image_results = list(executor.map(process_image, imgs, [url]*len(imgs), range(len(imgs)), [len(imgs)]*len(imgs)))
+        media['images'] = [result for result in image_results if result is not None]
+
+        def flatten_nested_elements(node):
+            if isinstance(node, NavigableString):
+                return node
+            if len(node.contents) == 1 and isinstance(node.contents[0], element.Tag) and node.contents[0].name == node.name:
+                return flatten_nested_elements(node.contents[0])
+            node.contents = [flatten_nested_elements(child) for child in node.contents]
+            return node
+
+        body = flatten_nested_elements(body)
+        base64_pattern = re.compile(r'data:image/[^;]+;base64,([^"]+)')
+        for img in imgs:
+            src = img.get('src', '')
+            if base64_pattern.match(src):
+                # Replace base64 data with empty string
+                img['src'] = base64_pattern.sub('', src)
+                
+        try:
+            str(body)
+        except Exception as e:
+            # Reset body to the original HTML
+            success = False
+            body = BeautifulSoup(html, 'html.parser')
+            
+            # Create a new div with a special ID
+            error_div = body.new_tag('div', id='crawl4ai_error_message')
+            error_div.string = '''
+            Crawl4AI Error: This page is not fully supported.
+            
+            Possible reasons:
+            1. The page may have restrictions that prevent crawling.
+            2. The page might not be fully loaded.
+            
+            Suggestions:
+            - Try calling the crawl function with these parameters:
+            magic=True,
+            - Set headless=False to visualize what's happening on the page.
+            
+            If the issue persists, please check the page's structure and any potential anti-crawling measures.
+            '''
+            
+            # Append the error div to the body
+            body.body.append(error_div)
+            
+            print(f"[LOG] 😧 Error: After processing the crawled HTML and removing irrelevant tags, nothing was left in the page. Check the markdown for further details.")
+
+
+        cleaned_html = str(body).replace('\n\n', '\n').replace('  ', ' ')
+
+        try:
+            h = CustomHTML2Text()
+            h.update_params(**kwargs.get('html2text', {}))            
+            markdown = h.handle(cleaned_html)
+        except Exception as e:
+            markdown = h.handle(sanitize_html(cleaned_html))
+        markdown = markdown.replace('    ```', '```')
+
+        try:
+            meta = extract_metadata(html, soup)
+        except Exception as e:
+            print('Error extracting metadata:', str(e))
+            meta = {}
+            
+        cleaner = ContentCleaningStrategy()
+        fit_html = cleaner.clean(cleaned_html)
+        fit_markdown = h.handle(fit_html)
+
+        cleaned_html = sanitize_html(cleaned_html)
+        return {
+            'markdown': markdown,
+            'fit_markdown': fit_markdown,
+            'fit_html': fit_html,
+            'cleaned_html': cleaned_html,
+            'success': success,
+            'media': media,
+            'links': links,
+            'metadata': meta
+        }

crawl4ai/crawler_strategy.py

@@ -6,10 +6,12 @@ from selenium.webdriver.support.ui import WebDriverWait
 from selenium.webdriver.support import expected_conditions as EC
 from selenium.webdriver.chrome.options import Options
 from selenium.common.exceptions import InvalidArgumentException, WebDriverException
-from selenium.webdriver.chrome.service import Service as ChromeService
-from webdriver_manager.chrome import ChromeDriverManager
+# from selenium.webdriver.chrome.service import Service as ChromeService
+# from webdriver_manager.chrome import ChromeDriverManager
+# from urllib3.exceptions import MaxRetryError
 
-import logging
+from .config import *
+import logging, time
 import base64
 from PIL import Image, ImageDraw, ImageFont
 from io import BytesIO
@@ -17,7 +19,7 @@ from typing import List, Callable
 import requests
 import os
 from pathlib import Path
-from .utils import wrap_text
+from .utils import *
 
 logger = logging.getLogger('selenium.webdriver.remote.remote_connection')
 logger.setLevel(logging.WARNING)
@@ -72,7 +74,7 @@ class CloudCrawlerStrategy(CrawlerStrategy):
         response = requests.post("http://crawl4ai.uccode.io/crawl", json=data)
         response = response.json()
         html = response["results"][0]["html"]
-        return html
+        return sanitize_input_encode(html)
 
 class LocalSeleniumCrawlerStrategy(CrawlerStrategy):
     def __init__(self, use_cached_html=False, js_code=None, **kwargs):
@@ -80,6 +82,8 @@ class LocalSeleniumCrawlerStrategy(CrawlerStrategy):
         print("[LOG] 🚀 Initializing LocalSeleniumCrawlerStrategy")
         self.options = Options()
         self.options.headless = True
+        if kwargs.get("proxy"):
+            self.options.add_argument("--proxy-server={}".format(kwargs.get("proxy")))
         if kwargs.get("user_agent"):
             self.options.add_argument("--user-agent=" + kwargs.get("user_agent"))
         else:
@@ -135,10 +139,15 @@ class LocalSeleniumCrawlerStrategy(CrawlerStrategy):
         # self.service = Service(chromedriver_autoinstaller.install())
         
         
-        chromedriver_path = ChromeDriverManager().install()
-        self.service = Service(chromedriver_path)
-        self.service.log_path = "NUL"
-        self.driver = webdriver.Chrome(service=self.service, options=self.options)
+        # chromedriver_path = ChromeDriverManager().install()
+        # self.service = Service(chromedriver_path)
+        # self.service.log_path = "NUL"
+        # self.driver = webdriver.Chrome(service=self.service, options=self.options)
+        
+        # Use selenium-manager (built into Selenium 4.10.0+)
+        self.service = Service()
+        self.driver = webdriver.Chrome(options=self.options)
+        
         self.driver = self.execute_hook('on_driver_created', self.driver)
         
         if kwargs.get("cookies"):
@@ -177,8 +186,20 @@ class LocalSeleniumCrawlerStrategy(CrawlerStrategy):
         # Set extra HTTP headers
         self.driver.execute_cdp_cmd('Network.setExtraHTTPHeaders', {'headers': headers})
 
+    def _ensure_page_load(self,  max_checks=6, check_interval=0.01):
+        initial_length = len(self.driver.page_source)
+        
+        for ix in range(max_checks):
+            # print(f"Checking page load: {ix}")
+            time.sleep(check_interval)
+            current_length = len(self.driver.page_source)
+            
+            if current_length != initial_length:
+                break
 
-    def crawl(self, url: str) -> str:
+        return self.driver.page_source
+    
+    def crawl(self, url: str, **kwargs) -> str:
         # Create md5 hash of the URL
         import hashlib
         url_hash = hashlib.md5(url.encode()).hexdigest()
@@ -187,33 +208,43 @@ class LocalSeleniumCrawlerStrategy(CrawlerStrategy):
             cache_file_path = os.path.join(Path.home(), ".crawl4ai", "cache", url_hash)
             if os.path.exists(cache_file_path):
                 with open(cache_file_path, "r") as f:
-                    return f.read()
+                    return sanitize_input_encode(f.read())
 
         try:
             self.driver = self.execute_hook('before_get_url', self.driver)
             if self.verbose:
                 print(f"[LOG] 🕸️ Crawling {url} using LocalSeleniumCrawlerStrategy...")
             self.driver.get(url) #<html><head></head><body></body></html>
-            html = self.driver.page_source                
+            
+            WebDriverWait(self.driver, 20).until(
+                lambda d: d.execute_script('return document.readyState') == 'complete'
+            )
             WebDriverWait(self.driver, 10).until(
                 EC.presence_of_all_elements_located((By.TAG_NAME, "body"))
             )
+            
+            self.driver.execute_script("window.scrollTo(0, document.body.scrollHeight);")
+            
+            self.driver = self.execute_hook('after_get_url', self.driver)
+            html = sanitize_input_encode(self._ensure_page_load()) # self.driver.page_source                                        
             can_not_be_done_headless = False # Look at my creativity for naming variables
-            # TODO: Very ugly way for now but it works
-            if html == "<html><head></head><body></body></html>":
+            
+            # TODO: Very ugly approach, but promise to change it!
+            if kwargs.get('bypass_headless', False) or html == "<html><head></head><body></body></html>":
+                print("[LOG] 🙌 Page could not be loaded in headless mode. Trying non-headless mode...")
                 can_not_be_done_headless = True
                 options = Options()
                 options.headless = False
                 # set window size very small
-                options.add_argument("--window-size=10,10")
+                options.add_argument("--window-size=5,5")
                 driver = webdriver.Chrome(service=self.service, options=options)
                 driver.get(url)
-                html = driver.page_source
+                self.driver = self.execute_hook('after_get_url', driver)
+                html = sanitize_input_encode(driver.page_source)
                 driver.quit()
             
-            self.driver = self.execute_hook('after_get_url', self.driver)
-            
             # Execute JS code if provided
+            self.js_code = kwargs.get("js_code", self.js_code)
             if self.js_code and type(self.js_code) == str:
                 self.driver.execute_script(self.js_code)
                 # Optionally, wait for some condition after executing the JS code
@@ -227,13 +258,25 @@ class LocalSeleniumCrawlerStrategy(CrawlerStrategy):
                         lambda driver: driver.execute_script("return document.readyState") == "complete"
                     )
             
+            # Optionally, wait for some condition after executing the JS code : Contributed by (https://github.com/jonymusky)
+            wait_for = kwargs.get('wait_for', False)
+            if wait_for:
+                if callable(wait_for):
+                    print("[LOG] 🔄 Waiting for condition...")
+                    WebDriverWait(self.driver, 20).until(wait_for)
+                else:
+                    print("[LOG] 🔄 Waiting for condition...")
+                    WebDriverWait(self.driver, 20).until(
+                        EC.presence_of_element_located((By.CSS_SELECTOR, wait_for))
+                    ) 
+            
             if not can_not_be_done_headless:
-                html = self.driver.page_source
+                html = sanitize_input_encode(self.driver.page_source)
             self.driver = self.execute_hook('before_return_html', self.driver, html)
             
             # Store in cache
             cache_file_path = os.path.join(Path.home(), ".crawl4ai", "cache", url_hash)
-            with open(cache_file_path, "w") as f:
+            with open(cache_file_path, "w", encoding="utf-8") as f:
                 f.write(html)
                 
             if self.verbose:
@@ -242,16 +285,16 @@ class LocalSeleniumCrawlerStrategy(CrawlerStrategy):
             return html
         except InvalidArgumentException:
             if not hasattr(e, 'msg'):
-                e.msg = str(e)
+                e.msg = sanitize_input_encode(str(e))
             raise InvalidArgumentException(f"Failed to crawl {url}: {e.msg}")
         except WebDriverException as e:
             # If e does nlt have msg attribute create it and set it to str(e)
             if not hasattr(e, 'msg'):
-                e.msg = str(e)
+                e.msg = sanitize_input_encode(str(e))
             raise WebDriverException(f"Failed to crawl {url}: {e.msg}")  
         except Exception as e:
             if not hasattr(e, 'msg'):
-                e.msg = str(e)
+                e.msg = sanitize_input_encode(str(e))
             raise Exception(f"Failed to crawl {url}: {e.msg}")
 
     def take_screenshot(self) -> str:
@@ -269,18 +312,20 @@ class LocalSeleniumCrawlerStrategy(CrawlerStrategy):
             # Open the screenshot with PIL
             image = Image.open(BytesIO(screenshot))
 
+            # Convert image to RGB mode (this will handle both RGB and RGBA images)
+            rgb_image = image.convert('RGB')
+
             # Convert to JPEG and compress
             buffered = BytesIO()
-            image.save(buffered, format="JPEG", quality=85)
+            rgb_image.save(buffered, format="JPEG", quality=85)
             img_base64 = base64.b64encode(buffered.getvalue()).decode('utf-8')
 
             if self.verbose:
                 print(f"[LOG] 📸 Screenshot taken and converted to base64")
 
             return img_base64
-
         except Exception as e:
-            error_message = f"Failed to take screenshot: {str(e)}"
+            error_message = sanitize_input_encode(f"Failed to take screenshot: {str(e)}")
             print(error_message)
 
             # Generate an image with black background
@@ -291,7 +336,7 @@ class LocalSeleniumCrawlerStrategy(CrawlerStrategy):
             try:
                 font = ImageFont.truetype("arial.ttf", 40)
             except IOError:
-                font = ImageFont.load_default(size=40)
+                font = ImageFont.load_default()
 
             # Define text color and wrap the text
             text_color = (255, 255, 255)
@@ -310,6 +355,6 @@ class LocalSeleniumCrawlerStrategy(CrawlerStrategy):
             img_base64 = base64.b64encode(buffered.getvalue()).decode('utf-8')
 
             return img_base64
-
+        
     def quit(self):
-        self.driver.quit()
+        self.driver.quit()

crawl4ai/database.py

@@ -20,7 +20,7 @@ def init_db():
             extracted_content TEXT,
             success BOOLEAN,
             media TEXT DEFAULT "{}",
-            link TEXT DEFAULT "{}",
+            links TEXT DEFAULT "{}",
             metadata TEXT DEFAULT "{}",
             screenshot TEXT DEFAULT ""
         )
@@ -127,6 +127,9 @@ def update_existing_records(new_column: str = "media", default_value: str = "{}"
         print(f"Error updating existing records: {e}")
 
 if __name__ == "__main__":
-    init_db()  # Initialize the database if not already initialized
-    alter_db_add_screenshot("metadata")  # Add the new column to the table
-    update_existing_records("metadata")  # Update existing records to set the new column to an empty string
+    # Delete the existing database file
+    if os.path.exists(DB_PATH):
+        os.remove(DB_PATH)
+    init_db()  
+    # alter_db_add_screenshot("COL_NAME")
+    

crawl4ai/extraction_strategy.py

@@ -9,7 +9,8 @@ from .utils import *
 from functools import partial
 from .model_loader import *
 import math
-
+import numpy as np
+from lxml import etree
 
 class ExtractionStrategy(ABC):
     """
@@ -67,7 +68,7 @@ class LLMExtractionStrategy(ExtractionStrategy):
         """
         super().__init__() 
         self.provider = provider
-        self.api_token = api_token or PROVIDER_MODELS.get(provider, None) or os.getenv("OPENAI_API_KEY")
+        self.api_token = api_token or PROVIDER_MODELS.get(provider, "no-token") or os.getenv("OPENAI_API_KEY")
         self.instruction = instruction
         self.extract_type = extraction_type
         self.schema = schema
@@ -78,6 +79,9 @@ class LLMExtractionStrategy(ExtractionStrategy):
         self.overlap_rate = kwargs.get("overlap_rate", OVERLAP_RATE)
         self.word_token_rate = kwargs.get("word_token_rate", WORD_TOKEN_RATE)
         self.apply_chunking = kwargs.get("apply_chunking", True)
+        self.base_url = kwargs.get("base_url", None)
+        self.api_base = kwargs.get("api_base", kwargs.get("base_url", None))
+        self.extra_args = kwargs.get("extra_args", {})
         if not self.apply_chunking:
             self.chunk_token_threshold = 1e9
         
@@ -100,8 +104,8 @@ class LLMExtractionStrategy(ExtractionStrategy):
             variable_values["REQUEST"] = self.instruction
             prompt_with_variables = PROMPT_EXTRACT_BLOCKS_WITH_INSTRUCTION
             
-        if self.extract_type == "schema":
-            variable_values["SCHEMA"] = json.dumps(self.schema)
+        if self.extract_type == "schema" and self.schema:
+            variable_values["SCHEMA"] = json.dumps(self.schema, indent=2)
             prompt_with_variables = PROMPT_EXTRACT_SCHEMA_WITH_INSTRUCTION
 
         for variable in variable_values:
@@ -109,14 +113,19 @@ class LLMExtractionStrategy(ExtractionStrategy):
                 "{" + variable + "}", variable_values[variable]
             )
         
-        response = perform_completion_with_backoff(self.provider, prompt_with_variables, self.api_token)
+        response = perform_completion_with_backoff(
+            self.provider, 
+            prompt_with_variables, 
+            self.api_token, 
+            base_url=self.api_base or self.base_url,
+            extra_args = self.extra_args
+            ) # , json_response=self.extract_type == "schema")
         try:
             blocks = extract_xml_data(["blocks"], response.choices[0].message.content)['blocks']
             blocks = json.loads(blocks)
             for block in blocks:
                 block['error'] = False
         except Exception as e:
-            print("Error extracting blocks:", str(e))
             parsed, unparsed = split_and_parse_json_objects(response.choices[0].message.content)
             blocks = parsed
             if unparsed:
@@ -192,16 +201,31 @@ class LLMExtractionStrategy(ExtractionStrategy):
             # Sequential processing with a delay
             for ix, section in enumerate(merged_sections):
                 extract_func = partial(self.extract, url)
-                extracted_content.extend(extract_func(ix, section))
+                extracted_content.extend(extract_func(ix, sanitize_input_encode(section)))
                 time.sleep(0.5)  # 500 ms delay between each processing
         else:
             # Parallel processing using ThreadPoolExecutor
+            # extract_func = partial(self.extract, url)
+            # for ix, section in enumerate(merged_sections):
+            #     extracted_content.append(extract_func(ix, section))            
+            
             with ThreadPoolExecutor(max_workers=4) as executor:
                 extract_func = partial(self.extract, url)
-                futures = [executor.submit(extract_func, ix, section) for ix, section in enumerate(merged_sections)]
+                futures = [executor.submit(extract_func, ix, sanitize_input_encode(section)) for ix, section in enumerate(merged_sections)]
                 
                 for future in as_completed(futures):
-                    extracted_content.extend(future.result())
+                    try:
+                        extracted_content.extend(future.result())
+                    except Exception as e:
+                        if self.verbose:
+                            print(f"Error in thread execution: {e}")
+                        # Add error information to extracted_content
+                        extracted_content.append({
+                            "index": 0,
+                            "error": True,
+                            "tags": ["error"],
+                            "content": str(e)
+                        })
 
         
         return extracted_content        
@@ -211,11 +235,12 @@ class CosineStrategy(ExtractionStrategy):
         """
         Initialize the strategy with clustering parameters.
 
-        :param semantic_filter: A keyword filter for document filtering.
-        :param word_count_threshold: Minimum number of words per cluster.
-        :param max_dist: The maximum cophenetic distance on the dendrogram to form clusters.
-        :param linkage_method: The linkage method for hierarchical clustering.
-        :param top_k: Number of top categories to extract.
+        Args:
+            semantic_filter (str): A keyword filter for document filtering.
+            word_count_threshold (int): Minimum number of words per cluster.
+            max_dist (float): The maximum cophenetic distance on the dendrogram to form clusters.
+            linkage_method (str): The linkage method for hierarchical clustering.
+            top_k (int): Number of top categories to extract.
         """
         super().__init__()
         
@@ -234,6 +259,9 @@ class CosineStrategy(ExtractionStrategy):
         self.get_embedding_method = "direct"
         
         self.device = get_device()
+        # import torch
+        # self.device = torch.device('cpu')
+        
         self.default_batch_size = calculate_batch_size(self.device)
 
         if self.verbose:
@@ -245,8 +273,10 @@ class CosineStrategy(ExtractionStrategy):
         #     self.get_embedding_method = "direct"
         # else:
 
-        self.tokenizer, self.model = load_bge_small_en_v1_5()
+        self.tokenizer, self.model = load_HF_embedding_model(model_name)
+        self.model.to(self.device)
         self.model.eval()  
+        
         self.get_embedding_method = "batch"
         
         self.buffer_embeddings = np.array([])
@@ -268,7 +298,7 @@ class CosineStrategy(ExtractionStrategy):
         if self.verbose:
             print(f"[LOG] Loading Multilabel Classifier for {self.device.type} device.")
             
-        self.nlp, self.device = load_text_multilabel_classifier()
+        self.nlp, _ = load_text_multilabel_classifier()
         # self.default_batch_size = 16 if self.device.type == 'cpu' else 64
         
         if self.verbose:
@@ -439,21 +469,21 @@ class CosineStrategy(ExtractionStrategy):
         if self.verbose:
             print(f"[LOG] 🚀 Assign tags using {self.device}")
         
-        if self.device.type in ["gpu", "cuda", "mps"]:
+        if self.device.type in ["gpu", "cuda", "mps", "cpu"]:
             labels = self.nlp([cluster['content'] for cluster in cluster_list])
             
             for cluster, label in zip(cluster_list, labels):
                 cluster['tags'] = label
-        elif self.device == "cpu":
-            # Process the text with the loaded model
-            texts = [cluster['content'] for cluster in cluster_list]
-            # Batch process texts
-            docs = self.nlp.pipe(texts, disable=["tagger", "parser", "ner", "lemmatizer"])
+        # elif self.device.type == "cpu":
+        #     # Process the text with the loaded model
+        #     texts = [cluster['content'] for cluster in cluster_list]
+        #     # Batch process texts
+        #     docs = self.nlp.pipe(texts, disable=["tagger", "parser", "ner", "lemmatizer"])
 
-            for doc, cluster in zip(docs, cluster_list):
-                tok_k = self.top_k
-                top_categories = sorted(doc.cats.items(), key=lambda x: x[1], reverse=True)[:tok_k]
-                cluster['tags'] = [cat for cat, _ in top_categories]
+        #     for doc, cluster in zip(docs, cluster_list):
+        #         tok_k = self.top_k
+        #         top_categories = sorted(doc.cats.items(), key=lambda x: x[1], reverse=True)[:tok_k]
+        #         cluster['tags'] = [cat for cat, _ in top_categories]
                             
             # for cluster in  cluster_list:
             #     doc = self.nlp(cluster['content'])
@@ -602,3 +632,240 @@ class ContentSummarizationStrategy(ExtractionStrategy):
         # Sort summaries by the original section index to maintain order
         summaries.sort(key=lambda x: x[0])
         return [summary for _, summary in summaries]
+  
+class JsonCssExtractionStrategy(ExtractionStrategy):
+    def __init__(self, schema: Dict[str, Any], **kwargs):
+        super().__init__(**kwargs)
+        self.schema = schema
+
+    def extract(self, url: str, html: str, *q, **kwargs) -> List[Dict[str, Any]]:
+        soup = BeautifulSoup(html, 'html.parser')
+        base_elements = soup.select(self.schema['baseSelector'])
+        
+        results = []
+        for element in base_elements:
+            item = self._extract_item(element, self.schema['fields'])
+            if item:
+                results.append(item)
+        
+        return results
+
+    
+
+    def _extract_field(self, element, field):
+        try:
+            if field['type'] == 'nested':
+                nested_element = element.select_one(field['selector'])
+                return self._extract_item(nested_element, field['fields']) if nested_element else {}
+            
+            if field['type'] == 'list':
+                elements = element.select(field['selector'])
+                return [self._extract_list_item(el, field['fields']) for el in elements]
+            
+            if field['type'] == 'nested_list':
+                elements = element.select(field['selector'])
+                return [self._extract_item(el, field['fields']) for el in elements]
+            
+            return self._extract_single_field(element, field)
+        except Exception as e:
+            if self.verbose:
+                print(f"Error extracting field {field['name']}: {str(e)}")
+            return field.get('default')
+
+    def _extract_list_item(self, element, fields):
+        item = {}
+        for field in fields:
+            value = self._extract_single_field(element, field)
+            if value is not None:
+                item[field['name']] = value
+        return item
+    
+    def _extract_single_field(self, element, field):
+        if 'selector' in field:
+            selected = element.select_one(field['selector'])
+            if not selected:
+                return field.get('default')
+        else:
+            selected = element
+
+        value = None
+        if field['type'] == 'text':
+            value = selected.get_text(strip=True)
+        elif field['type'] == 'attribute':
+            value = selected.get(field['attribute'])
+        elif field['type'] == 'html':
+            value = str(selected)
+        elif field['type'] == 'regex':
+            text = selected.get_text(strip=True)
+            match = re.search(field['pattern'], text)
+            value = match.group(1) if match else None
+
+        if 'transform' in field:
+            value = self._apply_transform(value, field['transform'])
+
+        return value if value is not None else field.get('default')
+
+    def _extract_item(self, element, fields):
+        item = {}
+        for field in fields:
+            if field['type'] == 'computed':
+                value = self._compute_field(item, field)
+            else:
+                value = self._extract_field(element, field)
+            if value is not None:
+                item[field['name']] = value
+        return item
+    
+    def _apply_transform(self, value, transform):
+        if transform == 'lowercase':
+            return value.lower()
+        elif transform == 'uppercase':
+            return value.upper()
+        elif transform == 'strip':
+            return value.strip()
+        return value
+
+    def _compute_field(self, item, field):
+        try:
+            if 'expression' in field:
+                return eval(field['expression'], {}, item)
+            elif 'function' in field:
+                return field['function'](item)
+        except Exception as e:
+            if self.verbose:
+                print(f"Error computing field {field['name']}: {str(e)}")
+            return field.get('default')
+
+    def run(self, url: str, sections: List[str], *q, **kwargs) -> List[Dict[str, Any]]:
+        combined_html = self.DEL.join(sections)
+        return self.extract(url, combined_html, **kwargs)
+    
+class JsonXPATHExtractionStrategy(ExtractionStrategy):
+    def __init__(self, schema: Dict[str, Any], **kwargs):
+        super().__init__(**kwargs)
+        self.schema = schema
+        self.use_cssselect = self._check_cssselect()
+
+    def _check_cssselect(self):
+        try:
+            import cssselect
+            return True
+        except ImportError:
+            print("Warning: cssselect is not installed. Falling back to XPath for all selectors.")
+            return False
+
+    def extract(self, url: str, html: str, *q, **kwargs) -> List[Dict[str, Any]]:
+        self.soup = BeautifulSoup(html, 'lxml')
+        self.tree = etree.HTML(str(self.soup))
+        
+        selector_type = 'xpath' if not self.use_cssselect else self.schema.get('selectorType', 'css')
+        base_selector = self.schema.get('baseXPath' if selector_type == 'xpath' else 'baseSelector')
+        base_elements = self._select_elements(base_selector, selector_type)
+        
+        results = []
+        for element in base_elements:
+            item = self._extract_item(element, self.schema['fields'])
+            if item:
+                results.append(item)
+        
+        return results
+
+    def _select_elements(self, selector, selector_type, element=None):
+        if selector_type == 'xpath' or not self.use_cssselect:
+            return self.tree.xpath(selector) if element is None else element.xpath(selector)
+        else:  # CSS
+            return self.tree.cssselect(selector) if element is None else element.cssselect(selector)
+
+    def _extract_field(self, element, field):
+        try:
+            selector_type = 'xpath' if not self.use_cssselect else field.get('selectorType', 'css')
+            selector = field.get('xpathSelector' if selector_type == 'xpath' else 'selector')
+            
+            if field['type'] == 'nested':
+                nested_element = self._select_elements(selector, selector_type, element)
+                return self._extract_item(nested_element[0], field['fields']) if nested_element else {}
+            
+            if field['type'] == 'list':
+                elements = self._select_elements(selector, selector_type, element)
+                return [self._extract_list_item(el, field['fields']) for el in elements]
+            
+            if field['type'] == 'nested_list':
+                elements = self._select_elements(selector, selector_type, element)
+                return [self._extract_item(el, field['fields']) for el in elements]
+            
+            return self._extract_single_field(element, field)
+        except Exception as e:
+            if self.verbose:
+                print(f"Error extracting field {field['name']}: {str(e)}")
+            return field.get('default')
+
+    def _extract_list_item(self, element, fields):
+        item = {}
+        for field in fields:
+            value = self._extract_single_field(element, field)
+            if value is not None:
+                item[field['name']] = value
+        return item
+    
+    def _extract_single_field(self, element, field):
+        selector_type = field.get('selectorType', 'css')
+        
+        if 'selector' in field:
+            selected = self._select_elements(field['selector'], selector_type, element)
+            if not selected:
+                return field.get('default')
+            selected = selected[0]
+        else:
+            selected = element
+
+        value = None
+        if field['type'] == 'text':
+            value = selected.text_content().strip() if hasattr(selected, 'text_content') else selected.text.strip()
+        elif field['type'] == 'attribute':
+            value = selected.get(field['attribute'])
+        elif field['type'] == 'html':
+            value = etree.tostring(selected, encoding='unicode')
+        elif field['type'] == 'regex':
+            text = selected.text_content().strip() if hasattr(selected, 'text_content') else selected.text.strip()
+            match = re.search(field['pattern'], text)
+            value = match.group(1) if match else None
+
+        if 'transform' in field:
+            value = self._apply_transform(value, field['transform'])
+
+        return value if value is not None else field.get('default')
+
+    def _extract_item(self, element, fields):
+        item = {}
+        for field in fields:
+            if field['type'] == 'computed':
+                value = self._compute_field(item, field)
+            else:
+                value = self._extract_field(element, field)
+            if value is not None:
+                item[field['name']] = value
+        return item
+    
+    def _apply_transform(self, value, transform):
+        if transform == 'lowercase':
+            return value.lower()
+        elif transform == 'uppercase':
+            return value.upper()
+        elif transform == 'strip':
+            return value.strip()
+        return value
+
+    def _compute_field(self, item, field):
+        try:
+            if 'expression' in field:
+                return eval(field['expression'], {}, item)
+            elif 'function' in field:
+                return field['function'](item)
+        except Exception as e:
+            if self.verbose:
+                print(f"Error computing field {field['name']}: {str(e)}")
+            return field.get('default')
+
+    def run(self, url: str, sections: List[str], *q, **kwargs) -> List[Dict[str, Any]]:
+        combined_html = self.DEL.join(sections)
+        return self.extract(url, combined_html, **kwargs)

crawl4ai/html2text/__main__.py

@@ -0,0 +1,3 @@
+from .cli import main
+
+main()

crawl4ai/html2text/_typing.py

@@ -0,0 +1,2 @@
+class OutCallback:
+    def __call__(self, s: str) -> None: ...

crawl4ai/html2text/cli.py

@@ -0,0 +1,330 @@
+import argparse
+import sys
+
+from . import HTML2Text, __version__, config
+
+
+def main() -> None:
+    baseurl = ""
+
+    class bcolors:
+        HEADER = "\033[95m"
+        OKBLUE = "\033[94m"
+        OKGREEN = "\033[92m"
+        WARNING = "\033[93m"
+        FAIL = "\033[91m"
+        ENDC = "\033[0m"
+        BOLD = "\033[1m"
+        UNDERLINE = "\033[4m"
+
+    p = argparse.ArgumentParser()
+    p.add_argument(
+        "--default-image-alt",
+        dest="default_image_alt",
+        default=config.DEFAULT_IMAGE_ALT,
+        help="The default alt string for images with missing ones",
+    )
+    p.add_argument(
+        "--pad-tables",
+        dest="pad_tables",
+        action="store_true",
+        default=config.PAD_TABLES,
+        help="pad the cells to equal column width in tables",
+    )
+    p.add_argument(
+        "--no-wrap-links",
+        dest="wrap_links",
+        action="store_false",
+        default=config.WRAP_LINKS,
+        help="don't wrap links during conversion",
+    )
+    p.add_argument(
+        "--wrap-list-items",
+        dest="wrap_list_items",
+        action="store_true",
+        default=config.WRAP_LIST_ITEMS,
+        help="wrap list items during conversion",
+    )
+    p.add_argument(
+        "--wrap-tables",
+        dest="wrap_tables",
+        action="store_true",
+        default=config.WRAP_TABLES,
+        help="wrap tables",
+    )
+    p.add_argument(
+        "--ignore-emphasis",
+        dest="ignore_emphasis",
+        action="store_true",
+        default=config.IGNORE_EMPHASIS,
+        help="don't include any formatting for emphasis",
+    )
+    p.add_argument(
+        "--reference-links",
+        dest="inline_links",
+        action="store_false",
+        default=config.INLINE_LINKS,
+        help="use reference style links instead of inline links",
+    )
+    p.add_argument(
+        "--ignore-links",
+        dest="ignore_links",
+        action="store_true",
+        default=config.IGNORE_ANCHORS,
+        help="don't include any formatting for links",
+    )
+    p.add_argument(
+        "--ignore-mailto-links",
+        action="store_true",
+        dest="ignore_mailto_links",
+        default=config.IGNORE_MAILTO_LINKS,
+        help="don't include mailto: links",
+    )
+    p.add_argument(
+        "--protect-links",
+        dest="protect_links",
+        action="store_true",
+        default=config.PROTECT_LINKS,
+        help="protect links from line breaks surrounding them with angle brackets",
+    )
+    p.add_argument(
+        "--ignore-images",
+        dest="ignore_images",
+        action="store_true",
+        default=config.IGNORE_IMAGES,
+        help="don't include any formatting for images",
+    )
+    p.add_argument(
+        "--images-as-html",
+        dest="images_as_html",
+        action="store_true",
+        default=config.IMAGES_AS_HTML,
+        help=(
+            "Always write image tags as raw html; preserves `height`, `width` and "
+            "`alt` if possible."
+        ),
+    )
+    p.add_argument(
+        "--images-to-alt",
+        dest="images_to_alt",
+        action="store_true",
+        default=config.IMAGES_TO_ALT,
+        help="Discard image data, only keep alt text",
+    )
+    p.add_argument(
+        "--images-with-size",
+        dest="images_with_size",
+        action="store_true",
+        default=config.IMAGES_WITH_SIZE,
+        help=(
+            "Write image tags with height and width attrs as raw html to retain "
+            "dimensions"
+        ),
+    )
+    p.add_argument(
+        "-g",
+        "--google-doc",
+        action="store_true",
+        dest="google_doc",
+        default=False,
+        help="convert an html-exported Google Document",
+    )
+    p.add_argument(
+        "-d",
+        "--dash-unordered-list",
+        action="store_true",
+        dest="ul_style_dash",
+        default=False,
+        help="use a dash rather than a star for unordered list items",
+    )
+    p.add_argument(
+        "-e",
+        "--asterisk-emphasis",
+        action="store_true",
+        dest="em_style_asterisk",
+        default=False,
+        help="use an asterisk rather than an underscore for emphasized text",
+    )
+    p.add_argument(
+        "-b",
+        "--body-width",
+        dest="body_width",
+        type=int,
+        default=config.BODY_WIDTH,
+        help="number of characters per output line, 0 for no wrap",
+    )
+    p.add_argument(
+        "-i",
+        "--google-list-indent",
+        dest="list_indent",
+        type=int,
+        default=config.GOOGLE_LIST_INDENT,
+        help="number of pixels Google indents nested lists",
+    )
+    p.add_argument(
+        "-s",
+        "--hide-strikethrough",
+        action="store_true",
+        dest="hide_strikethrough",
+        default=False,
+        help="hide strike-through text. only relevant when -g is " "specified as well",
+    )
+    p.add_argument(
+        "--escape-all",
+        action="store_true",
+        dest="escape_snob",
+        default=False,
+        help=(
+            "Escape all special characters.  Output is less readable, but avoids "
+            "corner case formatting issues."
+        ),
+    )
+    p.add_argument(
+        "--bypass-tables",
+        action="store_true",
+        dest="bypass_tables",
+        default=config.BYPASS_TABLES,
+        help="Format tables in HTML rather than Markdown syntax.",
+    )
+    p.add_argument(
+        "--ignore-tables",
+        action="store_true",
+        dest="ignore_tables",
+        default=config.IGNORE_TABLES,
+        help="Ignore table-related tags (table, th, td, tr) " "while keeping rows.",
+    )
+    p.add_argument(
+        "--single-line-break",
+        action="store_true",
+        dest="single_line_break",
+        default=config.SINGLE_LINE_BREAK,
+        help=(
+            "Use a single line break after a block element rather than two line "
+            "breaks. NOTE: Requires --body-width=0"
+        ),
+    )
+    p.add_argument(
+        "--unicode-snob",
+        action="store_true",
+        dest="unicode_snob",
+        default=config.UNICODE_SNOB,
+        help="Use unicode throughout document",
+    )
+    p.add_argument(
+        "--no-automatic-links",
+        action="store_false",
+        dest="use_automatic_links",
+        default=config.USE_AUTOMATIC_LINKS,
+        help="Do not use automatic links wherever applicable",
+    )
+    p.add_argument(
+        "--no-skip-internal-links",
+        action="store_false",
+        dest="skip_internal_links",
+        default=config.SKIP_INTERNAL_LINKS,
+        help="Do not skip internal links",
+    )
+    p.add_argument(
+        "--links-after-para",
+        action="store_true",
+        dest="links_each_paragraph",
+        default=config.LINKS_EACH_PARAGRAPH,
+        help="Put links after each paragraph instead of document",
+    )
+    p.add_argument(
+        "--mark-code",
+        action="store_true",
+        dest="mark_code",
+        default=config.MARK_CODE,
+        help="Mark program code blocks with [code]...[/code]",
+    )
+    p.add_argument(
+        "--decode-errors",
+        dest="decode_errors",
+        default=config.DECODE_ERRORS,
+        help=(
+            "What to do in case of decode errors.'ignore', 'strict' and 'replace' are "
+            "acceptable values"
+        ),
+    )
+    p.add_argument(
+        "--open-quote",
+        dest="open_quote",
+        default=config.OPEN_QUOTE,
+        help="The character used to open quotes",
+    )
+    p.add_argument(
+        "--close-quote",
+        dest="close_quote",
+        default=config.CLOSE_QUOTE,
+        help="The character used to close quotes",
+    )
+    p.add_argument(
+        "--version", action="version", version=".".join(map(str, __version__))
+    )
+    p.add_argument("filename", nargs="?")
+    p.add_argument("encoding", nargs="?", default="utf-8")
+    p.add_argument(
+        "--include-sup-sub",
+        dest="include_sup_sub",
+        action="store_true",
+        default=config.INCLUDE_SUP_SUB,
+        help="Include the sup and sub tags",
+    )
+    args = p.parse_args()
+
+    if args.filename and args.filename != "-":
+        with open(args.filename, "rb") as fp:
+            data = fp.read()
+    else:
+        data = sys.stdin.buffer.read()
+
+    try:
+        html = data.decode(args.encoding, args.decode_errors)
+    except UnicodeDecodeError as err:
+        warning = bcolors.WARNING + "Warning:" + bcolors.ENDC
+        warning += " Use the " + bcolors.OKGREEN
+        warning += "--decode-errors=ignore" + bcolors.ENDC + " flag."
+        print(warning)
+        raise err
+
+    h = HTML2Text(baseurl=baseurl)
+    # handle options
+    if args.ul_style_dash:
+        h.ul_item_mark = "-"
+    if args.em_style_asterisk:
+        h.emphasis_mark = "*"
+        h.strong_mark = "__"
+
+    h.body_width = args.body_width
+    h.google_list_indent = args.list_indent
+    h.ignore_emphasis = args.ignore_emphasis
+    h.ignore_links = args.ignore_links
+    h.ignore_mailto_links = args.ignore_mailto_links
+    h.protect_links = args.protect_links
+    h.ignore_images = args.ignore_images
+    h.images_as_html = args.images_as_html
+    h.images_to_alt = args.images_to_alt
+    h.images_with_size = args.images_with_size
+    h.google_doc = args.google_doc
+    h.hide_strikethrough = args.hide_strikethrough
+    h.escape_snob = args.escape_snob
+    h.bypass_tables = args.bypass_tables
+    h.ignore_tables = args.ignore_tables
+    h.single_line_break = args.single_line_break
+    h.inline_links = args.inline_links
+    h.unicode_snob = args.unicode_snob
+    h.use_automatic_links = args.use_automatic_links
+    h.skip_internal_links = args.skip_internal_links
+    h.links_each_paragraph = args.links_each_paragraph
+    h.mark_code = args.mark_code
+    h.wrap_links = args.wrap_links
+    h.wrap_list_items = args.wrap_list_items
+    h.wrap_tables = args.wrap_tables
+    h.pad_tables = args.pad_tables
+    h.default_image_alt = args.default_image_alt
+    h.open_quote = args.open_quote
+    h.close_quote = args.close_quote
+    h.include_sup_sub = args.include_sup_sub
+
+    sys.stdout.write(h.handle(html))

crawl4ai/html2text/config.py

@@ -0,0 +1,172 @@
+import re
+
+# Use Unicode characters instead of their ascii pseudo-replacements
+UNICODE_SNOB = False
+
+# Marker to use for marking tables for padding post processing
+TABLE_MARKER_FOR_PAD = "special_marker_for_table_padding"
+# Escape all special characters.  Output is less readable, but avoids
+# corner case formatting issues.
+ESCAPE_SNOB = False
+ESCAPE_BACKSLASH = False
+ESCAPE_DOT = False
+ESCAPE_PLUS = False
+ESCAPE_DASH = False
+
+# Put the links after each paragraph instead of at the end.
+LINKS_EACH_PARAGRAPH = False
+
+# Wrap long lines at position. 0 for no wrapping.
+BODY_WIDTH = 78
+
+# Don't show internal links (href="#local-anchor") -- corresponding link
+# targets won't be visible in the plain text file anyway.
+SKIP_INTERNAL_LINKS = True
+
+# Use inline, rather than reference, formatting for images and links
+INLINE_LINKS = True
+
+# Protect links from line breaks surrounding them with angle brackets (in
+# addition to their square brackets)
+PROTECT_LINKS = False
+# WRAP_LINKS = True
+WRAP_LINKS = True
+
+# Wrap list items.
+WRAP_LIST_ITEMS = False
+
+# Wrap tables
+WRAP_TABLES = False
+
+# Number of pixels Google indents nested lists
+GOOGLE_LIST_INDENT = 36
+
+# Values Google and others may use to indicate bold text
+BOLD_TEXT_STYLE_VALUES = ("bold", "700", "800", "900")
+
+IGNORE_ANCHORS = False
+IGNORE_MAILTO_LINKS = False
+IGNORE_IMAGES = False
+IMAGES_AS_HTML = False
+IMAGES_TO_ALT = False
+IMAGES_WITH_SIZE = False
+IGNORE_EMPHASIS = False
+MARK_CODE = False
+DECODE_ERRORS = "strict"
+DEFAULT_IMAGE_ALT = ""
+PAD_TABLES = False
+
+# Convert links with same href and text to <href> format
+# if they are absolute links
+USE_AUTOMATIC_LINKS = True
+
+# For checking space-only lines on line 771
+RE_SPACE = re.compile(r"\s\+")
+
+RE_ORDERED_LIST_MATCHER = re.compile(r"\d+\.\s")
+RE_UNORDERED_LIST_MATCHER = re.compile(r"[-\*\+]\s")
+RE_MD_CHARS_MATCHER = re.compile(r"([\\\[\]\(\)])")
+RE_MD_CHARS_MATCHER_ALL = re.compile(r"([`\*_{}\[\]\(\)#!])")
+
+# to find links in the text
+RE_LINK = re.compile(r"(\[.*?\] ?\(.*?\))|(\[.*?\]:.*?)")
+
+# to find table separators
+RE_TABLE = re.compile(r" \| ")
+
+RE_MD_DOT_MATCHER = re.compile(
+    r"""
+    ^             # start of line
+    (\s*\d+)      # optional whitespace and a number
+    (\.)          # dot
+    (?=\s)        # lookahead assert whitespace
+    """,
+    re.MULTILINE | re.VERBOSE,
+)
+RE_MD_PLUS_MATCHER = re.compile(
+    r"""
+    ^
+    (\s*)
+    (\+)
+    (?=\s)
+    """,
+    flags=re.MULTILINE | re.VERBOSE,
+)
+RE_MD_DASH_MATCHER = re.compile(
+    r"""
+    ^
+    (\s*)
+    (-)
+    (?=\s|\-)     # followed by whitespace (bullet list, or spaced out hr)
+                  # or another dash (header or hr)
+    """,
+    flags=re.MULTILINE | re.VERBOSE,
+)
+RE_SLASH_CHARS = r"\`*_{}[]()#+-.!"
+RE_MD_BACKSLASH_MATCHER = re.compile(
+    r"""
+    (\\)          # match one slash
+    (?=[%s])      # followed by a char that requires escaping
+    """
+    % re.escape(RE_SLASH_CHARS),
+    flags=re.VERBOSE,
+)
+
+UNIFIABLE = {
+    "rsquo": "'",
+    "lsquo": "'",
+    "rdquo": '"',
+    "ldquo": '"',
+    "copy": "(C)",
+    "mdash": "--",
+    "nbsp": " ",
+    "rarr": "->",
+    "larr": "<-",
+    "middot": "*",
+    "ndash": "-",
+    "oelig": "oe",
+    "aelig": "ae",
+    "agrave": "a",
+    "aacute": "a",
+    "acirc": "a",
+    "atilde": "a",
+    "auml": "a",
+    "aring": "a",
+    "egrave": "e",
+    "eacute": "e",
+    "ecirc": "e",
+    "euml": "e",
+    "igrave": "i",
+    "iacute": "i",
+    "icirc": "i",
+    "iuml": "i",
+    "ograve": "o",
+    "oacute": "o",
+    "ocirc": "o",
+    "otilde": "o",
+    "ouml": "o",
+    "ugrave": "u",
+    "uacute": "u",
+    "ucirc": "u",
+    "uuml": "u",
+    "lrm": "",
+    "rlm": "",
+}
+
+# Format tables in HTML rather than Markdown syntax
+BYPASS_TABLES = False
+# Ignore table-related tags (table, th, td, tr) while keeping rows
+IGNORE_TABLES = False
+
+
+# Use a single line break after a block element rather than two line breaks.
+# NOTE: Requires body width setting to be 0.
+SINGLE_LINE_BREAK = False
+
+
+# Use double quotation marks when converting the <q> tag.
+OPEN_QUOTE = '"'
+CLOSE_QUOTE = '"'
+
+# Include the <sup> and <sub> tags
+INCLUDE_SUP_SUB = False

crawl4ai/html2text/elements.py

@@ -0,0 +1,18 @@
+from typing import Dict, Optional
+
+
+class AnchorElement:
+    __slots__ = ["attrs", "count", "outcount"]
+
+    def __init__(self, attrs: Dict[str, Optional[str]], count: int, outcount: int):
+        self.attrs = attrs
+        self.count = count
+        self.outcount = outcount
+
+
+class ListElement:
+    __slots__ = ["name", "num"]
+
+    def __init__(self, name: str, num: int):
+        self.name = name
+        self.num = num

crawl4ai/html2text/utils.py

@@ -0,0 +1,303 @@
+import html.entities
+from typing import Dict, List, Optional
+
+from . import config
+
+unifiable_n = {
+    html.entities.name2codepoint[k]: v
+    for k, v in config.UNIFIABLE.items()
+    if k != "nbsp"
+}
+
+
+def hn(tag: str) -> int:
+    if tag[0] == "h" and len(tag) == 2:
+        n = tag[1]
+        if "0" < n <= "9":
+            return int(n)
+    return 0
+
+
+def dumb_property_dict(style: str) -> Dict[str, str]:
+    """
+    :returns: A hash of css attributes
+    """
+    return {
+        x.strip().lower(): y.strip().lower()
+        for x, y in [z.split(":", 1) for z in style.split(";") if ":" in z]
+    }
+
+
+def dumb_css_parser(data: str) -> Dict[str, Dict[str, str]]:
+    """
+    :type data: str
+
+    :returns: A hash of css selectors, each of which contains a hash of
+    css attributes.
+    :rtype: dict
+    """
+    # remove @import sentences
+    data += ";"
+    importIndex = data.find("@import")
+    while importIndex != -1:
+        data = data[0:importIndex] + data[data.find(";", importIndex) + 1 :]
+        importIndex = data.find("@import")
+
+    # parse the css. reverted from dictionary comprehension in order to
+    # support older pythons
+    pairs = [x.split("{") for x in data.split("}") if "{" in x.strip()]
+    try:
+        elements = {a.strip(): dumb_property_dict(b) for a, b in pairs}
+    except ValueError:
+        elements = {}  # not that important
+
+    return elements
+
+
+def element_style(
+    attrs: Dict[str, Optional[str]],
+    style_def: Dict[str, Dict[str, str]],
+    parent_style: Dict[str, str],
+) -> Dict[str, str]:
+    """
+    :type attrs: dict
+    :type style_def: dict
+    :type style_def: dict
+
+    :returns: A hash of the 'final' style attributes of the element
+    :rtype: dict
+    """
+    style = parent_style.copy()
+    if "class" in attrs:
+        assert attrs["class"] is not None
+        for css_class in attrs["class"].split():
+            css_style = style_def.get("." + css_class, {})
+            style.update(css_style)
+    if "style" in attrs:
+        assert attrs["style"] is not None
+        immediate_style = dumb_property_dict(attrs["style"])
+        style.update(immediate_style)
+
+    return style
+
+
+def google_list_style(style: Dict[str, str]) -> str:
+    """
+    Finds out whether this is an ordered or unordered list
+
+    :type style: dict
+
+    :rtype: str
+    """
+    if "list-style-type" in style:
+        list_style = style["list-style-type"]
+        if list_style in ["disc", "circle", "square", "none"]:
+            return "ul"
+
+    return "ol"
+
+
+def google_has_height(style: Dict[str, str]) -> bool:
+    """
+    Check if the style of the element has the 'height' attribute
+    explicitly defined
+
+    :type style: dict
+
+    :rtype: bool
+    """
+    return "height" in style
+
+
+def google_text_emphasis(style: Dict[str, str]) -> List[str]:
+    """
+    :type style: dict
+
+    :returns: A list of all emphasis modifiers of the element
+    :rtype: list
+    """
+    emphasis = []
+    if "text-decoration" in style:
+        emphasis.append(style["text-decoration"])
+    if "font-style" in style:
+        emphasis.append(style["font-style"])
+    if "font-weight" in style:
+        emphasis.append(style["font-weight"])
+
+    return emphasis
+
+
+def google_fixed_width_font(style: Dict[str, str]) -> bool:
+    """
+    Check if the css of the current element defines a fixed width font
+
+    :type style: dict
+
+    :rtype: bool
+    """
+    font_family = ""
+    if "font-family" in style:
+        font_family = style["font-family"]
+    return "courier new" == font_family or "consolas" == font_family
+
+
+def list_numbering_start(attrs: Dict[str, Optional[str]]) -> int:
+    """
+    Extract numbering from list element attributes
+
+    :type attrs: dict
+
+    :rtype: int or None
+    """
+    if "start" in attrs:
+        assert attrs["start"] is not None
+        try:
+            return int(attrs["start"]) - 1
+        except ValueError:
+            pass
+
+    return 0
+
+
+def skipwrap(
+    para: str, wrap_links: bool, wrap_list_items: bool, wrap_tables: bool
+) -> bool:
+    # If it appears to contain a link
+    # don't wrap
+    if not wrap_links and config.RE_LINK.search(para):
+        return True
+    # If the text begins with four spaces or one tab, it's a code block;
+    # don't wrap
+    if para[0:4] == "    " or para[0] == "\t":
+        return True
+
+    # If the text begins with only two "--", possibly preceded by
+    # whitespace, that's an emdash; so wrap.
+    stripped = para.lstrip()
+    if stripped[0:2] == "--" and len(stripped) > 2 and stripped[2] != "-":
+        return False
+
+    # I'm not sure what this is for; I thought it was to detect lists,
+    # but there's a <br>-inside-<span> case in one of the tests that
+    # also depends upon it.
+    if stripped[0:1] in ("-", "*") and not stripped[0:2] == "**":
+        return not wrap_list_items
+
+    # If text contains a pipe character it is likely a table
+    if not wrap_tables and config.RE_TABLE.search(para):
+        return True
+
+    # If the text begins with a single -, *, or +, followed by a space,
+    # or an integer, followed by a ., followed by a space (in either
+    # case optionally proceeded by whitespace), it's a list; don't wrap.
+    return bool(
+        config.RE_ORDERED_LIST_MATCHER.match(stripped)
+        or config.RE_UNORDERED_LIST_MATCHER.match(stripped)
+    )
+
+
+def escape_md(text: str) -> str:
+    """
+    Escapes markdown-sensitive characters within other markdown
+    constructs.
+    """
+    return config.RE_MD_CHARS_MATCHER.sub(r"\\\1", text)
+
+
+def escape_md_section(
+    text: str,
+    escape_backslash: bool = True,
+    snob: bool = False,
+    escape_dot: bool = True,
+    escape_plus: bool = True,
+    escape_dash: bool = True
+) -> str:
+    """
+    Escapes markdown-sensitive characters across whole document sections.
+    Each escaping operation can be controlled individually.
+    """
+    if escape_backslash:
+        text = config.RE_MD_BACKSLASH_MATCHER.sub(r"\\\1", text)
+
+    if snob:
+        text = config.RE_MD_CHARS_MATCHER_ALL.sub(r"\\\1", text)
+
+    if escape_dot:
+        text = config.RE_MD_DOT_MATCHER.sub(r"\1\\\2", text)
+
+    if escape_plus:
+        text = config.RE_MD_PLUS_MATCHER.sub(r"\1\\\2", text)
+
+    if escape_dash:
+        text = config.RE_MD_DASH_MATCHER.sub(r"\1\\\2", text)
+
+    return text
+
+def reformat_table(lines: List[str], right_margin: int) -> List[str]:
+    """
+    Given the lines of a table
+    padds the cells and returns the new lines
+    """
+    # find the maximum width of the columns
+    max_width = [len(x.rstrip()) + right_margin for x in lines[0].split("|")]
+    max_cols = len(max_width)
+    for line in lines:
+        cols = [x.rstrip() for x in line.split("|")]
+        num_cols = len(cols)
+
+        # don't drop any data if colspan attributes result in unequal lengths
+        if num_cols < max_cols:
+            cols += [""] * (max_cols - num_cols)
+        elif max_cols < num_cols:
+            max_width += [len(x) + right_margin for x in cols[-(num_cols - max_cols) :]]
+            max_cols = num_cols
+
+        max_width = [
+            max(len(x) + right_margin, old_len) for x, old_len in zip(cols, max_width)
+        ]
+
+    # reformat
+    new_lines = []
+    for line in lines:
+        cols = [x.rstrip() for x in line.split("|")]
+        if set(line.strip()) == set("-|"):
+            filler = "-"
+            new_cols = [
+                x.rstrip() + (filler * (M - len(x.rstrip())))
+                for x, M in zip(cols, max_width)
+            ]
+            new_lines.append("|-" + "|".join(new_cols) + "|")
+        else:
+            filler = " "
+            new_cols = [
+                x.rstrip() + (filler * (M - len(x.rstrip())))
+                for x, M in zip(cols, max_width)
+            ]
+            new_lines.append("| " + "|".join(new_cols) + "|")
+    return new_lines
+
+
+def pad_tables_in_text(text: str, right_margin: int = 1) -> str:
+    """
+    Provide padding for tables in the text
+    """
+    lines = text.split("\n")
+    table_buffer = []  # type: List[str]
+    table_started = False
+    new_lines = []
+    for line in lines:
+        # Toggle table started
+        if config.TABLE_MARKER_FOR_PAD in line:
+            table_started = not table_started
+            if not table_started:
+                table = reformat_table(table_buffer, right_margin)
+                new_lines.extend(table)
+                table_buffer = []
+                new_lines.append("")
+            continue
+        # Process lines
+        if table_started:
+            table_buffer.append(line)
+        else:
+            new_lines.append(line)
+    return "\n".join(new_lines)

crawl4ai/model_loader.py

@@ -3,9 +3,10 @@ from pathlib import Path
 import subprocess, os
 import shutil
 import tarfile
-from crawl4ai.config import MODEL_REPO_BRANCH
+from .model_loader import *
 import argparse
 import urllib.request
+from crawl4ai.config import MODEL_REPO_BRANCH
 __location__ = os.path.realpath(os.path.join(os.getcwd(), os.path.dirname(__file__)))
 
 @lru_cache()
@@ -71,56 +72,22 @@ def load_bert_base_uncased():
     return tokenizer, model
 
 @lru_cache()
-def load_bge_small_en_v1_5():
+def load_HF_embedding_model(model_name="BAAI/bge-small-en-v1.5") -> tuple:
+    """Load the Hugging Face model for embedding.
+    
+    Args:
+        model_name (str, optional): The model name to load. Defaults to "BAAI/bge-small-en-v1.5".
+        
+    Returns:
+        tuple: The tokenizer and model.
+    """
     from transformers import BertTokenizer, BertModel, AutoTokenizer, AutoModel
-    tokenizer = AutoTokenizer.from_pretrained('BAAI/bge-small-en-v1.5', resume_download=None)
-    model = AutoModel.from_pretrained('BAAI/bge-small-en-v1.5', resume_download=None)
+    tokenizer = AutoTokenizer.from_pretrained(model_name, resume_download=None)
+    model = AutoModel.from_pretrained(model_name, resume_download=None)
     model.eval()
     model, device = set_model_device(model)
     return tokenizer, model
 
-@lru_cache()
-def load_onnx_all_MiniLM_l6_v2():
-    from crawl4ai.onnx_embedding import DefaultEmbeddingModel
-
-    model_path = "models/onnx.tar.gz"
-    model_url = "https://unclecode-files.s3.us-west-2.amazonaws.com/onnx.tar.gz"
-    __location__ = os.path.realpath(
-        os.path.join(os.getcwd(), os.path.dirname(__file__)))
-    download_path = os.path.join(__location__, model_path)
-    onnx_dir = os.path.join(__location__, "models/onnx")
-    
-    # Create the models directory if it does not exist
-    os.makedirs(os.path.dirname(download_path), exist_ok=True)
-
-    # Download the tar.gz file if it does not exist
-    if not os.path.exists(download_path):
-        def download_with_progress(url, filename):
-            def reporthook(block_num, block_size, total_size):
-                downloaded = block_num * block_size
-                percentage = 100 * downloaded / total_size
-                if downloaded < total_size:
-                    print(f"\rDownloading: {percentage:.2f}% ({downloaded / (1024 * 1024):.2f} MB of {total_size / (1024 * 1024):.2f} MB)", end='')
-                else:
-                    print("\rDownload complete!")
-
-            urllib.request.urlretrieve(url, filename, reporthook)
-
-        download_with_progress(model_url, download_path)
-
-    # Extract the tar.gz file if the onnx directory does not exist
-    if not os.path.exists(onnx_dir):
-        with tarfile.open(download_path, "r:gz") as tar:
-            tar.extractall(path=os.path.join(__location__, "models"))
-        
-        # remove the tar.gz file
-        os.remove(download_path)
-    
-    
-    
-    model = DefaultEmbeddingModel()
-    return model
-
 @lru_cache()
 def load_text_classifier():
     from transformers import AutoTokenizer, AutoModelForSequenceClassification
@@ -141,14 +108,15 @@ def load_text_multilabel_classifier():
     from scipy.special import expit
     import torch
 
-    # Check for available device: CUDA, MPS (for Apple Silicon), or CPU
-    if torch.cuda.is_available():
-        device = torch.device("cuda")
-    elif torch.backends.mps.is_available():
-        device = torch.device("mps")
-    else:
-        return load_spacy_model(), torch.device("cpu")
-
+    # # Check for available device: CUDA, MPS (for Apple Silicon), or CPU
+    # if torch.cuda.is_available():
+    #     device = torch.device("cuda")
+    # elif torch.backends.mps.is_available():
+    #     device = torch.device("mps")
+    # else:
+    #     device = torch.device("cpu")
+    #     # return load_spacy_model(), torch.device("cpu")
+    
 
     MODEL = "cardiffnlp/tweet-topic-21-multi"
     tokenizer = AutoTokenizer.from_pretrained(MODEL, resume_download=None)
@@ -186,57 +154,66 @@ def load_nltk_punkt():
         nltk.download('punkt')
     return nltk.data.find('tokenizers/punkt')
 
-
 @lru_cache()
 def load_spacy_model():
     import spacy
     name = "models/reuters"
     home_folder = get_home_folder()
-    model_folder = os.path.join(home_folder, name)
+    model_folder = Path(home_folder) / name
     
     # Check if the model directory already exists
-    if not (Path(model_folder).exists() and any(Path(model_folder).iterdir())):
+    if not (model_folder.exists() and any(model_folder.iterdir())):
         repo_url = "https://github.com/unclecode/crawl4ai.git"
-        # branch = "main"
         branch = MODEL_REPO_BRANCH 
-        repo_folder = os.path.join(home_folder, "crawl4ai")
-        model_folder = os.path.join(home_folder, name)
-
-        # print("[LOG] ⏬ Downloading Spacy model for the first time...")
+        repo_folder = Path(home_folder) / "crawl4ai"
+        
+        print("[LOG] ⏬ Downloading Spacy model for the first time...")
 
         # Remove existing repo folder if it exists
-        if Path(repo_folder).exists():
-            shutil.rmtree(repo_folder)
-            shutil.rmtree(model_folder)
+        if repo_folder.exists():
+            try:
+                shutil.rmtree(repo_folder)
+                if model_folder.exists():
+                    shutil.rmtree(model_folder)
+            except PermissionError:
+                print("[WARNING] Unable to remove existing folders. Please manually delete the following folders and try again:")
+                print(f"- {repo_folder}")
+                print(f"- {model_folder}")
+                return None
 
         try:
             # Clone the repository
             subprocess.run(
-                ["git", "clone", "-b", branch, repo_url, repo_folder],
+                ["git", "clone", "-b", branch, repo_url, str(repo_folder)],
                 stdout=subprocess.DEVNULL,
                 stderr=subprocess.DEVNULL,
                 check=True
             )
 
             # Create the models directory if it doesn't exist
-            models_folder = os.path.join(home_folder, "models")
-            os.makedirs(models_folder, exist_ok=True)
+            models_folder = Path(home_folder) / "models"
+            models_folder.mkdir(parents=True, exist_ok=True)
 
             # Copy the reuters model folder to the models directory
-            source_folder = os.path.join(repo_folder, "models/reuters")
+            source_folder = repo_folder / "models" / "reuters"
             shutil.copytree(source_folder, model_folder)
 
             # Remove the cloned repository
             shutil.rmtree(repo_folder)
 
-            # Print completion message
-            # print("[LOG] ✅ Spacy Model downloaded successfully")
+            print("[LOG] ✅ Spacy Model downloaded successfully")
         except subprocess.CalledProcessError as e:
             print(f"An error occurred while cloning the repository: {e}")
+            return None
         except Exception as e:
             print(f"An error occurred: {e}")
+            return None
 
-    return spacy.load(model_folder)
+    try:
+        return spacy.load(str(model_folder))
+    except Exception as e:
+        print(f"Error loading spacy model: {e}")
+        return None
 
 def download_all_models(remove_existing=False):
     """Download all models required for Crawl4AI."""

crawl4ai/models.py

@@ -14,6 +14,11 @@ class CrawlResult(BaseModel):
     links: Dict[str, List[Dict]] = {}
     screenshot: Optional[str] = None
     markdown: Optional[str] = None
+    fit_markdown: Optional[str] = None
+    fit_html: Optional[str] = None
     extracted_content: Optional[str] = None
     metadata: Optional[dict] = None
-    error_message: Optional[str] = None
+    error_message: Optional[str] = None
+    session_id: Optional[str] = None
+    response_headers: Optional[dict] = None
+    status_code: Optional[int] = None

crawl4ai/models/onnx/config.json

@@ -1,25 +0,0 @@
-{
-  "_name_or_path": "sentence-transformers/all-MiniLM-L6-v2",
-  "architectures": [
-    "BertModel"
-  ],
-  "attention_probs_dropout_prob": 0.1,
-  "classifier_dropout": null,
-  "gradient_checkpointing": false,
-  "hidden_act": "gelu",
-  "hidden_dropout_prob": 0.1,
-  "hidden_size": 384,
-  "initializer_range": 0.02,
-  "intermediate_size": 1536,
-  "layer_norm_eps": 1e-12,
-  "max_position_embeddings": 512,
-  "model_type": "bert",
-  "num_attention_heads": 12,
-  "num_hidden_layers": 6,
-  "pad_token_id": 0,
-  "position_embedding_type": "absolute",
-  "transformers_version": "4.27.4",
-  "type_vocab_size": 2,
-  "use_cache": true,
-  "vocab_size": 30522
-}

crawl4ai/models/onnx/special_tokens_map.json

@@ -1,7 +0,0 @@
-{
-  "cls_token": "[CLS]",
-  "mask_token": "[MASK]",
-  "pad_token": "[PAD]",
-  "sep_token": "[SEP]",
-  "unk_token": "[UNK]"
-}

crawl4ai/models/onnx/tokenizer_config.json

@@ -1,15 +0,0 @@
-{
-  "cls_token": "[CLS]",
-  "do_basic_tokenize": true,
-  "do_lower_case": true,
-  "mask_token": "[MASK]",
-  "model_max_length": 512,
-  "never_split": null,
-  "pad_token": "[PAD]",
-  "sep_token": "[SEP]",
-  "special_tokens_map_file": "/Users/hammad/.cache/huggingface/hub/models--sentence-transformers--all-MiniLM-L6-v2/snapshots/7dbbc90392e2f80f3d3c277d6e90027e55de9125/special_tokens_map.json",
-  "strip_accents": null,
-  "tokenize_chinese_chars": true,
-  "tokenizer_class": "BertTokenizer",
-  "unk_token": "[UNK]"
-}

crawl4ai/onnx_embedding.py

@@ -1,50 +0,0 @@
-# A dependency-light way to run the onnx model
-
-
-import numpy as np
-from typing import List
-import os
-
-__location__ = os.path.realpath(os.path.join(os.getcwd(), os.path.dirname(__file__)))
-MODEL_ID = "sentence-transformers/all-MiniLM-L6-v2"
-
-def normalize(v):
-    norm = np.linalg.norm(v, axis=1)
-    norm[norm == 0] = 1e-12
-    return v / norm[:, np.newaxis]
-
-# Sampel implementation of the default sentence-transformers model using ONNX
-class DefaultEmbeddingModel():
-
-    def __init__(self):
-        from tokenizers import Tokenizer
-        import onnxruntime as ort
-        # max_seq_length = 256, for some reason sentence-transformers uses 256 even though the HF config has a max length of 128
-        # https://github.com/UKPLab/sentence-transformers/blob/3e1929fddef16df94f8bc6e3b10598a98f46e62d/docs/_static/html/models_en_sentence_embeddings.html#LL480
-        self.tokenizer = Tokenizer.from_file(os.path.join(__location__, "models/onnx/tokenizer.json"))
-        self.tokenizer.enable_truncation(max_length=256)
-        self.tokenizer.enable_padding(pad_id=0, pad_token="[PAD]", length=256)
-        self.model = ort.InferenceSession(os.path.join(__location__,"models/onnx/model.onnx"))
-        
-
-    def __call__(self, documents: List[str], batch_size: int = 32):
-        all_embeddings = []
-        for i in range(0, len(documents), batch_size):
-            batch = documents[i:i + batch_size]
-            encoded = [self.tokenizer.encode(d) for d in batch]
-            input_ids = np.array([e.ids for e in encoded])
-            attention_mask = np.array([e.attention_mask for e in encoded])
-            onnx_input = {
-                "input_ids": np.array(input_ids, dtype=np.int64),
-                "attention_mask": np.array(attention_mask, dtype=np.int64),
-                "token_type_ids": np.array([np.zeros(len(e), dtype=np.int64) for e in input_ids], dtype=np.int64),
-            }
-            model_output = self.model.run(None, onnx_input)
-            last_hidden_state = model_output[0]
-            # Perform mean pooling with attention weighting
-            input_mask_expanded = np.broadcast_to(np.expand_dims(attention_mask, -1), last_hidden_state.shape)
-            embeddings = np.sum(last_hidden_state * input_mask_expanded, 1) / np.clip(input_mask_expanded.sum(1), a_min=1e-9, a_max=None)
-            embeddings = normalize(embeddings).astype(np.float32)
-            all_embeddings.append(embeddings)
-        return np.concatenate(all_embeddings)
-

crawl4ai/prompts.py

@@ -1,4 +1,4 @@
-PROMPT_EXTRACT_BLOCKS = """YHere is the URL of the webpage:
+PROMPT_EXTRACT_BLOCKS = """Here is the URL of the webpage:
 <url>{URL}</url>
 
 And here is the cleaned HTML content of that webpage:
@@ -29,7 +29,7 @@ To generate the JSON objects:
 
 5. Make sure the generated JSON is complete and parsable, with no errors or omissions.
 
-6. Make sur to escape any special characters in the HTML content, and also single or double quote to avoid JSON parsing issues.
+6. Make sure to escape any special characters in the HTML content, and also single or double quote to avoid JSON parsing issues.
 
 Please provide your output within <blocks> tags, like this:
 
@@ -79,7 +79,7 @@ To generate the JSON objects:
 2. For each block:
    a. Assign it an index based on its order in the content.
    b. Analyze the content and generate ONE semantic tag that describe what the block is about.
-   c. Extract the text content, EXACTLY SAME AS GIVE DATA, clean it up if needed, and store it as a list of strings in the "content" field.
+   c. Extract the text content, EXACTLY SAME AS THE GIVE DATA, clean it up if needed, and store it as a list of strings in the "content" field.
 
 3. Ensure that the order of the JSON objects matches the order of the blocks as they appear in the original HTML content.
 
@@ -87,7 +87,7 @@ To generate the JSON objects:
 
 5. Make sure the generated JSON is complete and parsable, with no errors or omissions.
 
-6. Make sur to escape any special characters in the HTML content, and also single or double quote to avoid JSON parsing issues.
+6. Make sure to escape any special characters in the HTML content, and also single or double quote to avoid JSON parsing issues.
 
 7. Never alter the extracted content, just copy and paste it as it is.
 
@@ -142,7 +142,7 @@ To generate the JSON objects:
 
 5. Make sure the generated JSON is complete and parsable, with no errors or omissions.
 
-6. Make sur to escape any special characters in the HTML content, and also single or double quote to avoid JSON parsing issues.
+6. Make sure to escape any special characters in the HTML content, and also single or double quote to avoid JSON parsing issues.
 
 7. Never alter the extracted content, just copy and paste it as it is.
 
@@ -186,7 +186,7 @@ The user has made the following request for what information to extract from the
 Please carefully read the URL content and the user's request. If the user provided a desired JSON schema in the <schema_block> above, extract the requested information from the URL content according to that schema. If no schema was provided, infer an appropriate JSON schema based on the user's request that will best capture the key information they are looking for.
 
 Extraction instructions:
-Return the extracted information as a list of JSON objects, with each object in the list corresponding to a block of content from the URL, in the same order as it appears on the page. Wrap the entire JSON list in <blocks> tags.
+Return the extracted information as a list of JSON objects, with each object in the list corresponding to a block of content from the URL, in the same order as it appears on the page. Wrap the entire JSON list in <blocks>...</blocks> XML tags.
 
 Quality Reflection:
 Before outputting your final answer, double check that the JSON you are returning is complete, containing all the information requested by the user, and is valid JSON that could be parsed by json.loads() with no errors or omissions. The outputted JSON objects should fully match the schema, either provided or inferred.
@@ -194,5 +194,11 @@ Before outputting your final answer, double check that the JSON you are returnin
 Quality Score:
 After reflecting, score the quality and completeness of the JSON data you are about to return on a scale of 1 to 5. Write the score inside <score> tags.
 
+Avoid Common Mistakes:
+- Do NOT add any comments using "//" or "#" in the JSON output. It causes parsing errors.
+- Make sure the JSON is properly formatted with curly braces, square brackets, and commas in the right places.
+- Do not miss closing </blocks> tag at the end of the JSON output.
+- Do not generate the Python coee show me how to do the task, this is your task to extract the information and return it in JSON format.
+
 Result
-Output the final list of JSON objects, wrapped in <blocks> tags."""
+Output the final list of JSON objects, wrapped in <blocks>...</blocks> XML tags. Make sure to close the tag properly."""

crawl4ai/utils.py

@@ -1,20 +1,63 @@
 import time
 from concurrent.futures import ThreadPoolExecutor, as_completed
 from bs4 import BeautifulSoup, Comment, element, Tag, NavigableString
-import html2text
 import json
 import html
 import re
 import os
-from html2text import HTML2Text
+import platform
+from .html2text import HTML2Text
 from .prompts import PROMPT_EXTRACT_BLOCKS
 from .config import *
 from pathlib import Path
 from typing import Dict, Any
+from urllib.parse import urljoin
+import requests
+from requests.exceptions import InvalidSchema
 
 class InvalidCSSSelectorError(Exception):
     pass
 
+def calculate_semaphore_count():
+    cpu_count = os.cpu_count()
+    memory_gb = get_system_memory() / (1024 ** 3)  # Convert to GB
+    base_count = max(1, cpu_count // 2)
+    memory_based_cap = int(memory_gb / 2)  # Assume 2GB per instance
+    return min(base_count, memory_based_cap)
+
+def get_system_memory():
+    system = platform.system()
+    if system == "Linux":
+        with open('/proc/meminfo', 'r') as mem:
+            for line in mem:
+                if line.startswith('MemTotal:'):
+                    return int(line.split()[1]) * 1024  # Convert KB to bytes
+    elif system == "Darwin":  # macOS
+        import subprocess
+        output = subprocess.check_output(['sysctl', '-n', 'hw.memsize']).decode('utf-8')
+        return int(output.strip())
+    elif system == "Windows":
+        import ctypes
+        kernel32 = ctypes.windll.kernel32
+        c_ulonglong = ctypes.c_ulonglong
+        class MEMORYSTATUSEX(ctypes.Structure):
+            _fields_ = [
+                ('dwLength', ctypes.c_ulong),
+                ('dwMemoryLoad', ctypes.c_ulong),
+                ('ullTotalPhys', c_ulonglong),
+                ('ullAvailPhys', c_ulonglong),
+                ('ullTotalPageFile', c_ulonglong),
+                ('ullAvailPageFile', c_ulonglong),
+                ('ullTotalVirtual', c_ulonglong),
+                ('ullAvailVirtual', c_ulonglong),
+                ('ullAvailExtendedVirtual', c_ulonglong),
+            ]
+        memoryStatus = MEMORYSTATUSEX()
+        memoryStatus.dwLength = ctypes.sizeof(MEMORYSTATUSEX)
+        kernel32.GlobalMemoryStatusEx(ctypes.byref(memoryStatus))
+        return memoryStatus.ullTotalPhys
+    else:
+        raise OSError("Unsupported operating system")
 
 def get_home_folder():
     home_folder = os.path.join(Path.home(), ".crawl4ai")
@@ -87,7 +130,7 @@ def split_and_parse_json_objects(json_string):
     return parsed_objects, unparsed_segments
 
 def sanitize_html(html):
-    # Replace all weird and special characters with an empty string
+    # Replace all unwanted and special characters with an empty string
     sanitized_html = html
     # sanitized_html = re.sub(r'[^\w\s.,;:!?=\[\]{}()<>\/\\\-"]', '', html)
 
@@ -96,6 +139,16 @@ def sanitize_html(html):
 
     return sanitized_html
 
+def sanitize_input_encode(text: str) -> str:
+    """Sanitize input to handle potential encoding issues."""
+    try:
+        # Attempt to encode and decode as UTF-8 to handle potential encoding issues
+        return text.encode('utf-8', errors='ignore').decode('utf-8')
+    except UnicodeEncodeError as e:
+        print(f"Warning: Encoding issue detected. Some characters may be lost. Error: {e}")
+        # Fall back to ASCII if UTF-8 fails
+        return text.encode('ascii', errors='ignore').decode('ascii')
+
 def escape_json_string(s):
     """
     Escapes characters in a string to be JSON safe.
@@ -125,12 +178,25 @@ def escape_json_string(s):
     
     return s
 
-class CustomHTML2Text(HTML2Text):
+class CustomHTML2Text_v0(HTML2Text):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
-        self.ignore_links = True
         self.inside_pre = False
         self.inside_code = False
+        
+        self.skip_internal_links = False
+        self.single_line_break = False
+        self.mark_code = False
+        self.include_sup_sub = False
+        self.body_width = 0
+        self.ignore_mailto_links = True
+        self.ignore_links = False
+        self.escape_backslash = False
+        self.escape_dot = False
+        self.escape_plus = False
+        self.escape_dash = False
+        self.escape_snob = False
+
 
     def handle_tag(self, tag, attrs, start):
         if tag == 'pre':
@@ -140,6 +206,10 @@ class CustomHTML2Text(HTML2Text):
             else:
                 self.o('\n```')
                 self.inside_pre = False
+        elif tag in ["h1", "h2", "h3", "h4", "h5", "h6"]:
+            pass
+
+
         # elif tag == 'code' and not self.inside_pre:
         #     if start:
         #         if not self.inside_pre:
@@ -247,7 +317,7 @@ def get_content_of_website(url, html, word_count_threshold = MIN_WORD_THRESHOLD,
             if tag.name != 'img':
                 tag.attrs = {}
 
-        # Extract all img tgas inti [{src: '', alt: ''}]
+        # Extract all img tgas int0 [{src: '', alt: ''}]
         media = {
             'images': [],
             'videos': [],
@@ -285,7 +355,7 @@ def get_content_of_website(url, html, word_count_threshold = MIN_WORD_THRESHOLD,
                 img.decompose()
 
 
-        # Create a function that replace content of all"pre" tage with its inner text
+        # Create a function that replace content of all"pre" tag with its inner text
         def replace_pre_tags_with_text(node):
             for child in node.find_all('pre'):
                 # set child inner html to its text
@@ -419,14 +489,19 @@ def get_content_of_website(url, html, word_count_threshold = MIN_WORD_THRESHOLD,
         print('Error processing HTML content:', str(e))
         raise InvalidCSSSelectorError(f"Invalid CSS selector: {css_selector}") from e
 
-
 def get_content_of_website_optimized(url: str, html: str, word_count_threshold: int = MIN_WORD_THRESHOLD, css_selector: str = None, **kwargs) -> Dict[str, Any]:
     if not html:
         return None
 
     soup = BeautifulSoup(html, 'html.parser')
     body = soup.body
+    
+    image_description_min_word_threshold = kwargs.get('image_description_min_word_threshold', IMAGE_DESCRIPTION_MIN_WORD_THRESHOLD)
 
+    for tag in kwargs.get('excluded_tags', []) or []:
+        for el in body.select(tag):
+            el.decompose()
+        
     if css_selector:
         selected_elements = body.select(css_selector)
         if not selected_elements:
@@ -438,72 +513,185 @@ def get_content_of_website_optimized(url: str, html: str, word_count_threshold:
     links = {'internal': [], 'external': []}
     media = {'images': [], 'videos': [], 'audios': []}
 
+    # Extract meaningful text for media files from closest parent
+    def find_closest_parent_with_useful_text(tag):
+            current_tag = tag
+            while current_tag:
+                current_tag = current_tag.parent
+                # Get the text content from the parent tag
+                if current_tag:
+                    text_content = current_tag.get_text(separator=' ',strip=True)
+                    # Check if the text content has at least word_count_threshold
+                    if len(text_content.split()) >= image_description_min_word_threshold:
+                        return text_content
+            return None
+
+    def process_image(img, url, index, total_images):
+        #Check if an image has valid display and inside undesired html elements
+        def is_valid_image(img, parent, parent_classes):
+            style = img.get('style', '')
+            src = img.get('src', '')
+            classes_to_check = ['button', 'icon', 'logo']
+            tags_to_check = ['button', 'input']
+            return all([
+                'display:none' not in style,
+                src,
+                not any(s in var for var in [src, img.get('alt', ''), *parent_classes] for s in classes_to_check),
+                parent.name not in tags_to_check
+            ])
+
+        #Score an image for it's usefulness
+        def score_image_for_usefulness(img, base_url, index, images_count):
+            # Function to parse image height/width value and units
+            def parse_dimension(dimension):
+                if dimension:
+                    match = re.match(r"(\d+)(\D*)", dimension)
+                    if match:
+                        number = int(match.group(1))
+                        unit = match.group(2) or 'px'  # Default unit is 'px' if not specified
+                        return number, unit
+                return None, None
+
+            # Fetch image file metadata to extract size and extension
+            def fetch_image_file_size(img, base_url):
+                #If src is relative path construct full URL, if not it may be CDN URL
+                img_url = urljoin(base_url,img.get('src'))
+                try:
+                    response = requests.head(img_url)
+                    if response.status_code == 200:
+                        return response.headers.get('Content-Length',None)
+                    else:
+                        print(f"Failed to retrieve file size for {img_url}")
+                        return None
+                except InvalidSchema as e:
+                    return None
+                finally:
+                    return
+
+            image_height = img.get('height')
+            height_value, height_unit = parse_dimension(image_height)
+            image_width =  img.get('width')
+            width_value, width_unit = parse_dimension(image_width)
+            image_size = 0 #int(fetch_image_file_size(img,base_url) or 0)
+            image_format = os.path.splitext(img.get('src',''))[1].lower()
+            # Remove . from format
+            image_format = image_format.strip('.')
+            score = 0
+            if height_value:
+                if height_unit == 'px' and height_value > 150:
+                    score += 1
+                if height_unit in ['%','vh','vmin','vmax'] and height_value >30:
+                    score += 1
+            if width_value:
+                if width_unit == 'px' and width_value > 150:
+                    score += 1
+                if width_unit in ['%','vh','vmin','vmax'] and width_value >30:
+                    score += 1
+            if image_size > 10000:
+                score += 1
+            if img.get('alt') != '':
+                score+=1
+            if any(image_format==format for format in ['jpg','png','webp']):
+                score+=1
+            if index/images_count<0.5:
+                score+=1
+            return score
+
+        if not is_valid_image(img, img.parent, img.parent.get('class', [])):
+            return None
+        score = score_image_for_usefulness(img, url, index, total_images)
+        if score <= IMAGE_SCORE_THRESHOLD:
+            return None
+        return {
+            'src': img.get('src', '').replace('\\"', '"').strip(),
+            'alt': img.get('alt', ''),
+            'desc': find_closest_parent_with_useful_text(img),
+            'score': score,
+            'type': 'image'
+        }
+
     def process_element(element: element.PageElement) -> bool:
-        if isinstance(element, NavigableString):
-            if isinstance(element, Comment):
-                element.extract()
-            return False
+        try:
+            if isinstance(element, NavigableString):
+                if isinstance(element, Comment):
+                    element.extract()
+                return False
 
-        if element.name in ['script', 'style', 'link', 'meta', 'noscript']:
-            element.decompose()
-            return False
+            if element.name in ['script', 'style', 'link', 'meta', 'noscript']:
+                element.decompose()
+                return False
 
-        keep_element = False
+            keep_element = False
 
-        if element.name == 'a' and element.get('href'):
-            href = element['href']
-            url_base = url.split('/')[2]
-            link_data = {'href': href, 'text': element.get_text()}
-            if href.startswith('http') and url_base not in href:
-                links['external'].append(link_data)
-            else:
-                links['internal'].append(link_data)
-            keep_element = True
-
-        elif element.name == 'img':
-            media['images'].append({
-                'src': element.get('src'),
-                'alt': element.get('alt'),
-                'type': 'image'
-            })
-            return True  # Always keep image elements
-
-        elif element.name in ['video', 'audio']:
-            media[f"{element.name}s"].append({
-                'src': element.get('src'),
-                'alt': element.get('alt'),
-                'type': element.name
-            })
-            return True  # Always keep video and audio elements
-
-        if element.name != 'pre':
-            if element.name in ['b', 'i', 'u', 'span', 'del', 'ins', 'sub', 'sup', 'strong', 'em', 'code', 'kbd', 'var', 's', 'q', 'abbr', 'cite', 'dfn', 'time', 'small', 'mark']:
-                if kwargs.get('only_text', False):
-                    element.replace_with(element.get_text())
+            if element.name == 'a' and element.get('href'):
+                href = element['href']
+                url_base = url.split('/')[2]
+                link_data = {'href': href, 'text': element.get_text()}
+                if href.startswith('http') and url_base not in href:
+                    links['external'].append(link_data)
                 else:
-                    element.unwrap()
-            elif element.name != 'img':
-                element.attrs = {}
+                    links['internal'].append(link_data)
+                keep_element = True
 
-        # Process children
-        for child in list(element.children):
-            if isinstance(child, NavigableString) and not isinstance(child, Comment):
-                if len(child.strip()) > 0:
-                    keep_element = True
-            else:
-                if process_element(child):
-                    keep_element = True
-            
+            elif element.name == 'img':
+                return True  # Always keep image elements
 
-        # Check word count
-        if not keep_element:
-            word_count = len(element.get_text(strip=True).split())
-            keep_element = word_count >= word_count_threshold
+            elif element.name in ['video', 'audio']:
+                media[f"{element.name}s"].append({
+                    'src': element.get('src'),
+                    'alt': element.get('alt'),
+                    'type': element.name,
+                    'description': find_closest_parent_with_useful_text(element)
+                })
+                source_tags = element.find_all('source')
+                for source_tag in source_tags:
+                    media[f"{element.name}s"].append({
+                    'src': source_tag.get('src'),
+                    'alt': element.get('alt'),
+                    'type': element.name,
+                    'description': find_closest_parent_with_useful_text(element)
+                })
+                return True  # Always keep video and audio elements
 
-        if not keep_element:
-            element.decompose()
+            if element.name != 'pre':
+                if element.name in ['b', 'i', 'u', 'span', 'del', 'ins', 'sub', 'sup', 'strong', 'em', 'code', 'kbd', 'var', 's', 'q', 'abbr', 'cite', 'dfn', 'time', 'small', 'mark']:
+                    if kwargs.get('only_text', False):
+                        element.replace_with(element.get_text())
+                    else:
+                        element.unwrap()
+                elif element.name != 'img':
+                    element.attrs = {}
 
-        return keep_element
+            # Process children
+            for child in list(element.children):
+                if isinstance(child, NavigableString) and not isinstance(child, Comment):
+                    if len(child.strip()) > 0:
+                        keep_element = True
+                else:
+                    if process_element(child):
+                        keep_element = True
+                
+
+            # Check word count
+            if not keep_element:
+                word_count = len(element.get_text(strip=True).split())
+                keep_element = word_count >= word_count_threshold
+
+            if not keep_element:
+                element.decompose()
+
+            return keep_element
+        except Exception as e:
+            print('Error processing element:', str(e))
+            return False
+
+    #process images by filtering and extracting contextual text from the page
+    imgs = body.find_all('img')
+    media['images'] = [
+        result for result in
+        (process_image(img, url, i, len(imgs)) for i, img in enumerate(imgs))
+        if result is not None
+    ]
 
     process_element(body)
 
@@ -516,6 +704,11 @@ def get_content_of_website_optimized(url: str, html: str, word_count_threshold:
         return node
 
     body = flatten_nested_elements(body)
+    base64_pattern = re.compile(r'data:image/[^;]+;base64,([^"]+)')
+    for img in imgs:
+        src = img.get('src', '')
+        if base64_pattern.match(src):
+            img['src'] = base64_pattern.sub('', src)
 
     cleaned_html = str(body).replace('\n\n', '\n').replace('  ', ' ')
     cleaned_html = sanitize_html(cleaned_html)
@@ -540,7 +733,6 @@ def get_content_of_website_optimized(url: str, html: str, word_count_threshold:
         'metadata': meta
     }
 
-
 def extract_metadata(html, soup = None):
     metadata = {}
     
@@ -599,12 +791,26 @@ def extract_xml_data(tags, string):
     return data
     
 # Function to perform the completion with exponential backoff
-def perform_completion_with_backoff(provider, prompt_with_variables, api_token):
+def perform_completion_with_backoff(
+    provider, 
+    prompt_with_variables, 
+    api_token, 
+    json_response = False, 
+    base_url=None,
+    **kwargs
+    ):
     from litellm import completion 
     from litellm.exceptions import RateLimitError
     max_attempts = 3
     base_delay = 2  # Base delay in seconds, you can adjust this based on your needs
     
+    extra_args = {}
+    if json_response:
+        extra_args["response_format"] = { "type": "json_object" }
+        
+    if kwargs.get("extra_args"):
+        extra_args.update(kwargs["extra_args"])
+    
     for attempt in range(max_attempts):
         try:
             response =completion(
@@ -613,7 +819,9 @@ def perform_completion_with_backoff(provider, prompt_with_variables, api_token):
                     {"role": "user", "content": prompt_with_variables}
                 ],
                 temperature=0.01,
-                api_key=api_token
+                api_key=api_token,
+                base_url=base_url,
+                **extra_args
             )
             return response  # Return the successful response
         except RateLimitError as e:
@@ -633,7 +841,7 @@ def perform_completion_with_backoff(provider, prompt_with_variables, api_token):
                     "content": ["Rate limit error. Please try again later."]
                 }]
     
-def extract_blocks(url, html, provider = DEFAULT_PROVIDER, api_token = None):
+def extract_blocks(url, html, provider = DEFAULT_PROVIDER, api_token = None, base_url = None):
     # api_token = os.getenv('GROQ_API_KEY', None) if not api_token else api_token
     api_token = PROVIDER_MODELS.get(provider, None) if not api_token else api_token
     
@@ -648,7 +856,7 @@ def extract_blocks(url, html, provider = DEFAULT_PROVIDER, api_token = None):
             "{" + variable + "}", variable_values[variable]
         )
         
-    response = perform_completion_with_backoff(provider, prompt_with_variables, api_token)
+    response = perform_completion_with_backoff(provider, prompt_with_variables, api_token, base_url=base_url)
         
     try:
         blocks = extract_xml_data(["blocks"], response.choices[0].message.content)['blocks']
@@ -657,7 +865,6 @@ def extract_blocks(url, html, provider = DEFAULT_PROVIDER, api_token = None):
         for block in blocks:
             block['error'] = False
     except Exception as e:
-        print("Error extracting blocks:", str(e))
         parsed, unparsed = split_and_parse_json_objects(response.choices[0].message.content)
         blocks = parsed
         # Append all unparsed segments as onr error block and content is list of unparsed segments
@@ -703,7 +910,6 @@ def extract_blocks_batch(batch_data, provider = "groq/llama3-70b-8192", api_toke
             blocks = json.loads(blocks)
 
         except Exception as e:
-            print("Error extracting blocks:", str(e))
             blocks = [{
                 "index": 0,
                 "tags": ["error"],
@@ -714,7 +920,6 @@ def extract_blocks_batch(batch_data, provider = "groq/llama3-70b-8192", api_toke
     
     return sum(all_blocks, [])
 
-
 def merge_chunks_based_on_token_threshold(chunks, token_threshold):
     """
     Merges small chunks into larger ones based on the total token threshold.
@@ -744,23 +949,22 @@ def merge_chunks_based_on_token_threshold(chunks, token_threshold):
 
     return merged_sections
 
-def process_sections(url: str, sections: list, provider: str, api_token: str) -> list:
+def process_sections(url: str, sections: list, provider: str, api_token: str, base_url=None) -> list:
     extracted_content = []
     if provider.startswith("groq/"):
         # Sequential processing with a delay
         for section in sections:
-            extracted_content.extend(extract_blocks(url, section, provider, api_token))
+            extracted_content.extend(extract_blocks(url, section, provider, api_token, base_url=base_url))
             time.sleep(0.5)  # 500 ms delay between each processing
     else:
         # Parallel processing using ThreadPoolExecutor
         with ThreadPoolExecutor() as executor:
-            futures = [executor.submit(extract_blocks, url, section, provider, api_token) for section in sections]
+            futures = [executor.submit(extract_blocks, url, section, provider, api_token, base_url=base_url) for section in sections]
             for future in as_completed(futures):
                 extracted_content.extend(future.result())
     
     return extracted_content
 
-
 def wrap_text(draw, text, font, max_width):
     # Wrap the text to fit within the specified width
     lines = []
@@ -772,9 +976,70 @@ def wrap_text(draw, text, font, max_width):
         lines.append(line)
     return '\n'.join(lines)
 
-
 def format_html(html_string):
     soup = BeautifulSoup(html_string, 'html.parser')
     return soup.prettify()
 
+def normalize_url(href, base_url):
+    """Normalize URLs to ensure consistent format"""
+    from urllib.parse import urljoin, urlparse
 
+    # Parse base URL to get components
+    parsed_base = urlparse(base_url)
+    if not parsed_base.scheme or not parsed_base.netloc:
+        raise ValueError(f"Invalid base URL format: {base_url}")
+
+    # Use urljoin to handle all cases
+    normalized = urljoin(base_url, href.strip())
+    return normalized
+
+def normalize_url_tmp(href, base_url):
+    """Normalize URLs to ensure consistent format"""
+    # Extract protocol and domain from base URL
+    try:
+        base_parts = base_url.split('/')
+        protocol = base_parts[0]
+        domain = base_parts[2]
+    except IndexError:
+        raise ValueError(f"Invalid base URL format: {base_url}")
+    
+    # Handle special protocols
+    special_protocols = {'mailto:', 'tel:', 'ftp:', 'file:', 'data:', 'javascript:'}
+    if any(href.lower().startswith(proto) for proto in special_protocols):
+        return href.strip()
+        
+    # Handle anchor links
+    if href.startswith('#'):
+        return f"{base_url}{href}"
+        
+    # Handle protocol-relative URLs
+    if href.startswith('//'):
+        return f"{protocol}{href}"
+        
+    # Handle root-relative URLs
+    if href.startswith('/'):
+        return f"{protocol}//{domain}{href}"
+        
+    # Handle relative URLs
+    if not href.startswith(('http://', 'https://')):
+        # Remove leading './' if present
+        href = href.lstrip('./')
+        return f"{protocol}//{domain}/{href}"
+        
+    return href.strip()
+
+def is_external_url(url, base_domain):
+    """Determine if a URL is external"""
+    special_protocols = {'mailto:', 'tel:', 'ftp:', 'file:', 'data:', 'javascript:'}
+    if any(url.lower().startswith(proto) for proto in special_protocols):
+        return True
+        
+    try:
+        # Handle URLs with protocol
+        if url.startswith(('http://', 'https://')):
+            url_domain = url.split('/')[2]
+            return base_domain.lower() not in url_domain.lower()
+    except IndexError:
+        return False
+        
+    return False

crawl4ai/web_crawler.py

@@ -11,43 +11,29 @@ from .crawler_strategy import *
 from typing import List
 from concurrent.futures import ThreadPoolExecutor
 from .config import *
+import warnings
+import json
+warnings.filterwarnings("ignore", message='Field "model_name" has conflict with protected namespace "model_".')
 
 
 class WebCrawler:
-    def __init__(
-        self,
-        # db_path: str = None,
-        crawler_strategy: CrawlerStrategy = None,
-        always_by_pass_cache: bool = False,
-        verbose: bool = False,
-    ):
-        # self.db_path = db_path
+    def __init__(self, crawler_strategy: CrawlerStrategy = None, always_by_pass_cache: bool = False, verbose: bool = False):
         self.crawler_strategy = crawler_strategy or LocalSeleniumCrawlerStrategy(verbose=verbose)
         self.always_by_pass_cache = always_by_pass_cache
-
-        # Create the .crawl4ai folder in the user's home directory if it doesn't exist
         self.crawl4ai_folder = os.path.join(Path.home(), ".crawl4ai")
         os.makedirs(self.crawl4ai_folder, exist_ok=True)
         os.makedirs(f"{self.crawl4ai_folder}/cache", exist_ok=True)
-
-        # If db_path is not provided, use the default path
-        # if not db_path:
-            # self.db_path = f"{self.crawl4ai_folder}/crawl4ai.db"
-        
-        # flush_db()
         init_db()
-        
         self.ready = False
         
     def warmup(self):
         print("[LOG] 🌤️  Warming up the WebCrawler")
-        result = self.run(
+        self.run(
             url='https://google.com/',
             word_count_threshold=5,
-            extraction_strategy= NoExtractionStrategy(),
+            extraction_strategy=NoExtractionStrategy(),
             bypass_cache=False,
-            verbose = False,
-            # warmup=True
+            verbose=False
         )
         self.ready = True
         print("[LOG] 🌞 WebCrawler is ready to crawl")
@@ -137,12 +123,8 @@ class WebCrawler:
                 if not isinstance(chunking_strategy, ChunkingStrategy):
                     raise ValueError("Unsupported chunking strategy")
                 
-                # if word_count_threshold < MIN_WORD_THRESHOLD:
-                #     word_count_threshold = MIN_WORD_THRESHOLD
-                    
-                word_count_threshold = max(word_count_threshold, 0)
+                word_count_threshold = max(word_count_threshold, MIN_WORD_THRESHOLD)
 
-                # Check cache first
                 cached = None
                 screenshot_data = None
                 extracted_content = None
@@ -153,8 +135,8 @@ class WebCrawler:
                     return None
                 
                 if cached:
-                    html = cached[1]
-                    extracted_content = cached[4]
+                    html = sanitize_input_encode(cached[1])
+                    extracted_content = sanitize_input_encode(cached[4])
                     if screenshot:
                         screenshot_data = cached[9]
                         if not screenshot_data:
@@ -164,10 +146,10 @@ class WebCrawler:
                     if user_agent:
                         self.crawler_strategy.update_user_agent(user_agent)
                     t1 = time.time()
-                    html = self.crawler_strategy.crawl(url)
+                    html = sanitize_input_encode(self.crawler_strategy.crawl(url, **kwargs))
                     t2 = time.time()
                     if verbose:
-                        print(f"[LOG] 🚀 Crawling done for {url}, success: {bool(html)}, time taken: {t2 - t1} seconds")
+                        print(f"[LOG] 🚀 Crawling done for {url}, success: {bool(html)}, time taken: {t2 - t1:.2f} seconds")
                     if screenshot:
                         screenshot_data = self.crawler_strategy.take_screenshot()
 
@@ -198,21 +180,18 @@ class WebCrawler:
             t = time.time()
             # Extract content from HTML
             try:
-                # t1 = time.time()
-                # result = get_content_of_website(url, html, word_count_threshold, css_selector=css_selector, only_text=kwargs.get("only_text", False))
-                # print(f"[LOG] 🚀 Crawling done for {url}, success: True, time taken: {time.time() - t1} seconds")
                 t1 = time.time()
                 result = get_content_of_website_optimized(url, html, word_count_threshold, css_selector=css_selector, only_text=kwargs.get("only_text", False))
                 if verbose:
-                    print(f"[LOG] 🚀 Content extracted for {url}, success: True, time taken: {time.time() - t1} seconds")
+                    print(f"[LOG] 🚀 Content extracted for {url}, success: True, time taken: {time.time() - t1:.2f} seconds")
                 
                 if result is None:
                     raise ValueError(f"Failed to extract content from the website: {url}")
             except InvalidCSSSelectorError as e:
                 raise ValueError(str(e))
             
-            cleaned_html = result.get("cleaned_html", "")
-            markdown = result.get("markdown", "")
+            cleaned_html = sanitize_input_encode(result.get("cleaned_html", ""))
+            markdown = sanitize_input_encode(result.get("markdown", ""))
             media = result.get("media", [])
             links = result.get("links", [])
             metadata = result.get("metadata", {})
@@ -223,10 +202,10 @@ class WebCrawler:
 
                 sections = chunking_strategy.chunk(markdown)
                 extracted_content = extraction_strategy.run(url, sections)
-                extracted_content = json.dumps(extracted_content, indent=4, default=str)
+                extracted_content = json.dumps(extracted_content, indent=4, default=str, ensure_ascii=False)
 
                 if verbose:
-                    print(f"[LOG] 🚀 Extraction done for {url}, time taken: {time.time() - t} seconds.")
+                    print(f"[LOG] 🚀 Extraction done for {url}, time taken: {time.time() - t:.2f} seconds.")
                 
             screenshot = None if not screenshot else screenshot
             

docker-compose.yml

@@ -1,10 +0,0 @@
-version: '3.8'
-
-services:
-  web:
-    build: .
-    command: uvicorn main:app --host 0.0.0.0 --port 80 --workers $(nproc)
-    ports:
-      - "80:80"
-    environment:
-      - PYTHONUNBUFFERED=1

docs/assets/pitch-dark.svg

@@ -0,0 +1,64 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 500">
+    <!-- Background -->
+    <rect width="800" height="500" fill="#1a1a1a"/>
+    
+    <!-- Opportunities Section -->
+    <g transform="translate(50,50)">
+        <!-- Opportunity 1 Box -->
+        <rect x="0" y="0" width="300" height="150" rx="10" fill="#1a2d3d" stroke="#64b5f6" stroke-width="2"/>
+        <text x="150" y="30" text-anchor="middle" font-family="Arial" font-weight="bold" font-size="16" fill="#64b5f6">Data Capitalization Opportunity</text>
+        <text x="150" y="60" text-anchor="middle" font-family="Arial" font-size="12" fill="#e0e0e0">
+            <tspan x="150" dy="0">Transform digital footprints into assets</tspan>
+            <tspan x="150" dy="20">Personal data as capital</tspan>
+            <tspan x="150" dy="20">Enterprise knowledge valuation</tspan>
+            <tspan x="150" dy="20">New form of wealth creation</tspan>
+        </text>
+
+        <!-- Opportunity 2 Box -->
+        <rect x="0" y="200" width="300" height="150" rx="10" fill="#1a2d1a" stroke="#81c784" stroke-width="2"/>
+        <text x="150" y="230" text-anchor="middle" font-family="Arial" font-weight="bold" font-size="16" fill="#81c784">Authentic Data Potential</text>
+        <text x="150" y="260" text-anchor="middle" font-family="Arial" font-size="12" fill="#e0e0e0">
+            <tspan x="150" dy="0">Vast reservoir of real insights</tspan>
+            <tspan x="150" dy="20">Enhanced AI development</tspan>
+            <tspan x="150" dy="20">Diverse human knowledge</tspan>
+            <tspan x="150" dy="20">Willing participation model</tspan>
+        </text>
+    </g>
+
+    <!-- Development Pathway -->
+    <g transform="translate(450,50)">
+        <!-- Step 1 Box -->
+        <rect x="0" y="0" width="300" height="100" rx="10" fill="#2d1a2d" stroke="#ce93d8" stroke-width="2"/>
+        <text x="150" y="35" text-anchor="middle" font-family="Arial" font-weight="bold" font-size="16" fill="#ce93d8">1. Open-Source Foundation</text>
+        <text x="150" y="65" text-anchor="middle" font-family="Arial" font-size="12" fill="#e0e0e0">Data extraction engine &amp; community development</text>
+
+        <!-- Step 2 Box -->
+        <rect x="0" y="125" width="300" height="100" rx="10" fill="#2d1a2d" stroke="#ce93d8" stroke-width="2"/>
+        <text x="150" y="160" text-anchor="middle" font-family="Arial" font-weight="bold" font-size="16" fill="#ce93d8">2. Data Capitalization Platform</text>
+        <text x="150" y="190" text-anchor="middle" font-family="Arial" font-size="12" fill="#e0e0e0">Tools to structure &amp; value digital assets</text>
+
+        <!-- Step 3 Box -->
+        <rect x="0" y="250" width="300" height="100" rx="10" fill="#2d1a2d" stroke="#ce93d8" stroke-width="2"/>
+        <text x="150" y="285" text-anchor="middle" font-family="Arial" font-weight="bold" font-size="16" fill="#ce93d8">3. Shared Data Marketplace</text>
+        <text x="150" y="315" text-anchor="middle" font-family="Arial" font-size="12" fill="#e0e0e0">Economic platform for data exchange</text>
+    </g>
+
+    <!-- Connecting Arrows -->
+    <g transform="translate(400,125)">
+        <path d="M-20,0 L40,0" stroke="#666" stroke-width="2" marker-end="url(#arrowhead)"/>
+        <path d="M-20,200 L40,200" stroke="#666" stroke-width="2" marker-end="url(#arrowhead)"/>
+    </g>
+
+    <!-- Arrow Marker -->
+    <defs>
+        <marker id="arrowhead" markerWidth="10" markerHeight="7" refX="9" refY="3.5" orient="auto">
+            <polygon points="0 0, 10 3.5, 0 7" fill="#666"/>
+        </marker>
+    </defs>
+
+    <!-- Vision Box at Bottom -->
+    <g transform="translate(200,420)">
+        <rect x="0" y="0" width="400" height="60" rx="10" fill="#2d2613" stroke="#ffd54f" stroke-width="2"/>
+        <text x="200" y="35" text-anchor="middle" font-family="Arial" font-weight="bold" font-size="16" fill="#ffd54f">Economic Vision: Shared Data Economy</text>
+    </g>
+</svg>

docs/chunking_strategies.json

@@ -1,12 +0,0 @@
-{
-    "RegexChunking": "### RegexChunking\n\n`RegexChunking` is a text chunking strategy that splits a given text into smaller parts using regular expressions.\nThis is useful for preparing large texts for processing by language models, ensuring they are divided into manageable segments.\n\n#### Constructor Parameters:\n- `patterns` (list, optional): A list of regular expression patterns used to split the text. Default is to split by double newlines (`['\\n\\n']`).\n\n#### Example usage:\n```python\nchunker = RegexChunking(patterns=[r'\\n\\n', r'\\. '])\nchunks = chunker.chunk(\"This is a sample text. It will be split into chunks.\")\n```",
-    
-    "NlpSentenceChunking": "### NlpSentenceChunking\n\n`NlpSentenceChunking` uses a natural language processing model to chunk a given text into sentences. This approach leverages SpaCy to accurately split text based on sentence boundaries.\n\n#### Constructor Parameters:\n- None.\n\n#### Example usage:\n```python\nchunker = NlpSentenceChunking()\nchunks = chunker.chunk(\"This is a sample text. It will be split into sentences.\")\n```",
-    
-    "TopicSegmentationChunking": "### TopicSegmentationChunking\n\n`TopicSegmentationChunking` uses the TextTiling algorithm to segment a given text into topic-based chunks. This method identifies thematic boundaries in the text.\n\n#### Constructor Parameters:\n- `num_keywords` (int, optional): The number of keywords to extract for each topic segment. Default is `3`.\n\n#### Example usage:\n```python\nchunker = TopicSegmentationChunking(num_keywords=3)\nchunks = chunker.chunk(\"This is a sample text. It will be split into topic-based segments.\")\n```",
-    
-    "FixedLengthWordChunking": "### FixedLengthWordChunking\n\n`FixedLengthWordChunking` splits a given text into chunks of fixed length, based on the number of words.\n\n#### Constructor Parameters:\n- `chunk_size` (int, optional): The number of words in each chunk. Default is `100`.\n\n#### Example usage:\n```python\nchunker = FixedLengthWordChunking(chunk_size=100)\nchunks = chunker.chunk(\"This is a sample text. It will be split into fixed-length word chunks.\")\n```",
-    
-    "SlidingWindowChunking": "### SlidingWindowChunking\n\n`SlidingWindowChunking` uses a sliding window approach to chunk a given text. Each chunk has a fixed length, and the window slides by a specified step size.\n\n#### Constructor Parameters:\n- `window_size` (int, optional): The number of words in each chunk. Default is `100`.\n- `step` (int, optional): The number of words to slide the window. Default is `50`.\n\n#### Example usage:\n```python\nchunker = SlidingWindowChunking(window_size=100, step=50)\nchunks = chunker.chunk(\"This is a sample text. It will be split using a sliding window approach.\")\n```"
-  }
-  

docs/examples/async_webcrawler_multiple_urls_example.py

@@ -0,0 +1,48 @@
+# File: async_webcrawler_multiple_urls_example.py
+import os, sys
+# append 2 parent directories to sys.path to import crawl4ai
+parent_dir = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+sys.path.append(parent_dir)
+
+import asyncio
+from crawl4ai import AsyncWebCrawler
+
+async def main():
+    # Initialize the AsyncWebCrawler
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        # List of URLs to crawl
+        urls = [
+            "https://example.com",
+            "https://python.org",
+            "https://github.com",
+            "https://stackoverflow.com",
+            "https://news.ycombinator.com"
+        ]
+
+        # Set up crawling parameters
+        word_count_threshold = 100
+
+        # Run the crawling process for multiple URLs
+        results = await crawler.arun_many(
+            urls=urls,
+            word_count_threshold=word_count_threshold,
+            bypass_cache=True,
+            verbose=True
+        )
+
+        # Process the results
+        for result in results:
+            if result.success:
+                print(f"Successfully crawled: {result.url}")
+                print(f"Title: {result.metadata.get('title', 'N/A')}")
+                print(f"Word count: {len(result.markdown.split())}")
+                print(f"Number of links: {len(result.links.get('internal', [])) + len(result.links.get('external', []))}")
+                print(f"Number of images: {len(result.media.get('images', []))}")
+                print("---")
+            else:
+                print(f"Failed to crawl: {result.url}")
+                print(f"Error: {result.error_message}")
+                print("---")
+
+if __name__ == "__main__":
+    asyncio.run(main())

docs/examples/crawlai_vs_firecrawl.py

@@ -0,0 +1,67 @@
+import os, time
+# append the path to the root of the project
+import sys
+import asyncio
+sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..'))
+from firecrawl import FirecrawlApp
+from crawl4ai import AsyncWebCrawler
+__data__ = os.path.join(os.path.dirname(__file__), '..', '..') + '/.data'
+
+async def compare():
+    app = FirecrawlApp(api_key=os.environ['FIRECRAWL_API_KEY'])
+
+    # Tet Firecrawl with a simple crawl
+    start = time.time()
+    scrape_status = app.scrape_url(
+    'https://www.nbcnews.com/business',
+    params={'formats': ['markdown', 'html']}
+    )
+    end = time.time()
+    print(f"Time taken: {end - start} seconds")
+    print(len(scrape_status['markdown']))
+    # save the markdown content with provider name
+    with open(f"{__data__}/firecrawl_simple.md", "w") as f:
+        f.write(scrape_status['markdown'])
+    # Count how many "cldnry.s-nbcnews.com" are in the markdown
+    print(scrape_status['markdown'].count("cldnry.s-nbcnews.com"))
+    
+
+
+    async with AsyncWebCrawler() as crawler:
+        start = time.time()
+        result = await crawler.arun(
+            url="https://www.nbcnews.com/business",
+            # js_code=["const loadMoreButton = Array.from(document.querySelectorAll('button')).find(button => button.textContent.includes('Load More')); loadMoreButton && loadMoreButton.click();"],
+            word_count_threshold=0,
+            bypass_cache=True, 
+            verbose=False
+        )
+        end = time.time()
+        print(f"Time taken: {end - start} seconds")
+        print(len(result.markdown))
+        # save the markdown content with provider name  
+        with open(f"{__data__}/crawl4ai_simple.md", "w") as f:
+            f.write(result.markdown)
+        # count how many "cldnry.s-nbcnews.com" are in the markdown
+        print(result.markdown.count("cldnry.s-nbcnews.com"))
+
+        start = time.time()
+        result = await crawler.arun(
+            url="https://www.nbcnews.com/business",
+            js_code=["const loadMoreButton = Array.from(document.querySelectorAll('button')).find(button => button.textContent.includes('Load More')); loadMoreButton && loadMoreButton.click();"],
+            word_count_threshold=0,
+            bypass_cache=True, 
+            verbose=False
+        )
+        end = time.time()
+        print(f"Time taken: {end - start} seconds")
+        print(len(result.markdown))
+        # save the markdown content with provider name
+        with open(f"{__data__}/crawl4ai_js.md", "w") as f:
+            f.write(result.markdown)
+        # count how many "cldnry.s-nbcnews.com" are in the markdown
+        print(result.markdown.count("cldnry.s-nbcnews.com"))
+        
+if __name__ == "__main__":
+    asyncio.run(compare())
+    

docs/examples/language_support_example.py

@@ -0,0 +1,45 @@
+import asyncio
+from crawl4ai import AsyncWebCrawler, AsyncPlaywrightCrawlerStrategy
+
+async def main():
+    # Example 1: Setting language when creating the crawler
+    crawler1 = AsyncWebCrawler(
+        crawler_strategy=AsyncPlaywrightCrawlerStrategy(
+            headers={"Accept-Language": "fr-FR,fr;q=0.9,en-US;q=0.8,en;q=0.7"}
+        )
+    )
+    result1 = await crawler1.arun("https://www.example.com")
+    print("Example 1 result:", result1.extracted_content[:100])  # Print first 100 characters
+
+    # Example 2: Setting language before crawling
+    crawler2 = AsyncWebCrawler()
+    crawler2.crawler_strategy.headers["Accept-Language"] = "es-ES,es;q=0.9,en-US;q=0.8,en;q=0.7"
+    result2 = await crawler2.arun("https://www.example.com")
+    print("Example 2 result:", result2.extracted_content[:100])
+
+    # Example 3: Setting language when calling arun method
+    crawler3 = AsyncWebCrawler()
+    result3 = await crawler3.arun(
+        "https://www.example.com",
+        headers={"Accept-Language": "de-DE,de;q=0.9,en-US;q=0.8,en;q=0.7"}
+    )
+    print("Example 3 result:", result3.extracted_content[:100])
+
+    # Example 4: Crawling multiple pages with different languages
+    urls = [
+        ("https://www.example.com", "fr-FR,fr;q=0.9"),
+        ("https://www.example.org", "es-ES,es;q=0.9"),
+        ("https://www.example.net", "de-DE,de;q=0.9"),
+    ]
+    
+    crawler4 = AsyncWebCrawler()
+    results = await asyncio.gather(*[
+        crawler4.arun(url, headers={"Accept-Language": lang})
+        for url, lang in urls
+    ])
+    
+    for url, result in zip([u for u, _ in urls], results):
+        print(f"Result for {url}:", result.extracted_content[:100])
+
+if __name__ == "__main__":
+    asyncio.run(main())

docs/examples/llm_extraction_openai_pricing.py

@@ -21,7 +21,8 @@ result = crawler.run(
     url=url,
     word_count_threshold=1,
     extraction_strategy= LLMExtractionStrategy(
-        provider= "openai/gpt-4o", api_token = os.getenv('OPENAI_API_KEY'), 
+        # provider= "openai/gpt-4o", api_token = os.getenv('OPENAI_API_KEY'), 
+        provider= "groq/llama-3.1-70b-versatile", api_token = os.getenv('GROQ_API_KEY'), 
         schema=OpenAIModelFee.model_json_schema(),
         extraction_type="schema",
         instruction="From the crawled content, extract all mentioned model names along with their "\
@@ -36,5 +37,5 @@ model_fees = json.loads(result.extracted_content)
 
 print(len(model_fees))
 
-with open(".data/data.json", "w") as f:
+with open(".data/data.json", "w", encoding="utf-8") as f:
     f.write(result.extracted_content)

docs/examples/quickstart_async.py

@@ -0,0 +1,542 @@
+import os, sys
+# append parent directory to system path
+sys.path.append(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))); os.environ['FIRECRAWL_API_KEY'] = "fc-84b370ccfad44beabc686b38f1769692";
+
+import asyncio
+# import nest_asyncio
+# nest_asyncio.apply()
+
+import time
+import json
+import os
+import re
+from typing import Dict, List
+from bs4 import BeautifulSoup
+from pydantic import BaseModel, Field
+from crawl4ai import AsyncWebCrawler
+from crawl4ai.extraction_strategy import (
+    JsonCssExtractionStrategy,
+    LLMExtractionStrategy,
+)
+
+__location__ = os.path.realpath(os.path.join(os.getcwd(), os.path.dirname(__file__)))
+
+print("Crawl4AI: Advanced Web Crawling and Data Extraction")
+print("GitHub Repository: https://github.com/unclecode/crawl4ai")
+print("Twitter: @unclecode")
+print("Website: https://crawl4ai.com")
+
+
+async def simple_crawl():
+    print("\n--- Basic Usage ---")
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        result = await crawler.arun(url="https://www.nbcnews.com/business")
+        print(result.markdown[:500])  # Print first 500 characters
+
+async def simple_example_with_running_js_code():
+    print("\n--- Executing JavaScript and Using CSS Selectors ---")
+    # New code to handle the wait_for parameter
+    wait_for = """() => {
+        return Array.from(document.querySelectorAll('article.tease-card')).length > 10;
+    }"""
+
+    # wait_for can be also just a css selector
+    # wait_for = "article.tease-card:nth-child(10)"
+
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        js_code = [
+            "const loadMoreButton = Array.from(document.querySelectorAll('button')).find(button => button.textContent.includes('Load More')); loadMoreButton && loadMoreButton.click();"
+        ]
+        result = await crawler.arun(
+            url="https://www.nbcnews.com/business",
+            js_code=js_code,
+            # wait_for=wait_for,
+            bypass_cache=True,
+        )
+        print(result.markdown[:500])  # Print first 500 characters
+
+async def simple_example_with_css_selector():
+    print("\n--- Using CSS Selectors ---")
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        result = await crawler.arun(
+            url="https://www.nbcnews.com/business",
+            css_selector=".wide-tease-item__description",
+            bypass_cache=True,
+        )
+        print(result.markdown[:500])  # Print first 500 characters
+
+async def use_proxy():
+    print("\n--- Using a Proxy ---")
+    print(
+        "Note: Replace 'http://your-proxy-url:port' with a working proxy to run this example."
+    )
+    # Uncomment and modify the following lines to use a proxy
+    # async with AsyncWebCrawler(verbose=True, proxy="http://your-proxy-url:port") as crawler:
+    #     result = await crawler.arun(
+    #         url="https://www.nbcnews.com/business",
+    #         bypass_cache=True
+    #     )
+    #     print(result.markdown[:500])  # Print first 500 characters
+
+async def capture_and_save_screenshot(url: str, output_path: str):
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        result = await crawler.arun(
+            url=url,
+            screenshot=True,
+            bypass_cache=True
+        )
+        
+        if result.success and result.screenshot:
+            import base64
+            
+            # Decode the base64 screenshot data
+            screenshot_data = base64.b64decode(result.screenshot)
+            
+            # Save the screenshot as a JPEG file
+            with open(output_path, 'wb') as f:
+                f.write(screenshot_data)
+            
+            print(f"Screenshot saved successfully to {output_path}")
+        else:
+            print("Failed to capture screenshot")
+
+class OpenAIModelFee(BaseModel):
+    model_name: str = Field(..., description="Name of the OpenAI model.")
+    input_fee: str = Field(..., description="Fee for input token for the OpenAI model.")
+    output_fee: str = Field(
+        ..., description="Fee for output token for the OpenAI model."
+    )
+
+async def extract_structured_data_using_llm(provider: str, api_token: str = None, extra_headers: Dict[str, str] = None):
+    print(f"\n--- Extracting Structured Data with {provider} ---")
+    
+    if api_token is None and provider != "ollama":
+        print(f"API token is required for {provider}. Skipping this example.")
+        return
+
+    extra_args = {}
+    if extra_headers:
+        extra_args["extra_headers"] = extra_headers
+
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        result = await crawler.arun(
+            url="https://openai.com/api/pricing/",
+            word_count_threshold=1,
+            extraction_strategy=LLMExtractionStrategy(
+                provider=provider,
+                api_token=api_token,
+                schema=OpenAIModelFee.schema(),
+                extraction_type="schema",
+                instruction="""From the crawled content, extract all mentioned model names along with their fees for input and output tokens. 
+                Do not miss any models in the entire content. One extracted model JSON format should look like this: 
+                {"model_name": "GPT-4", "input_fee": "US$10.00 / 1M tokens", "output_fee": "US$30.00 / 1M tokens"}.""",
+                extra_args=extra_args
+            ),
+            bypass_cache=True,
+        )
+        print(result.extracted_content)
+
+async def extract_structured_data_using_css_extractor():
+    print("\n--- Using JsonCssExtractionStrategy for Fast Structured Output ---")
+    schema = {
+        "name": "Coinbase Crypto Prices",
+        "baseSelector": ".cds-tableRow-t45thuk",
+        "fields": [
+            {
+                "name": "crypto",
+                "selector": "td:nth-child(1) h2",
+                "type": "text",
+            },
+            {
+                "name": "symbol",
+                "selector": "td:nth-child(1) p",
+                "type": "text",
+            },
+            {
+                "name": "price",
+                "selector": "td:nth-child(2)",
+                "type": "text",
+            }
+        ],
+    }
+
+    extraction_strategy = JsonCssExtractionStrategy(schema, verbose=True)
+
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        result = await crawler.arun(
+            url="https://www.coinbase.com/explore",
+            extraction_strategy=extraction_strategy,
+            bypass_cache=True,
+        )
+
+        assert result.success, "Failed to crawl the page"
+
+        news_teasers = json.loads(result.extracted_content)
+        print(f"Successfully extracted {len(news_teasers)} news teasers")
+        print(json.dumps(news_teasers[0], indent=2))
+
+# Advanced Session-Based Crawling with Dynamic Content 🔄
+async def crawl_dynamic_content_pages_method_1():
+    print("\n--- Advanced Multi-Page Crawling with JavaScript Execution ---")
+    first_commit = ""
+
+    async def on_execution_started(page):
+        nonlocal first_commit
+        try:
+            while True:
+                await page.wait_for_selector("li.Box-sc-g0xbh4-0 h4")
+                commit = await page.query_selector("li.Box-sc-g0xbh4-0 h4")
+                commit = await commit.evaluate("(element) => element.textContent")
+                commit = re.sub(r"\s+", "", commit)
+                if commit and commit != first_commit:
+                    first_commit = commit
+                    break
+                await asyncio.sleep(0.5)
+        except Exception as e:
+            print(f"Warning: New content didn't appear after JavaScript execution: {e}")
+
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        crawler.crawler_strategy.set_hook("on_execution_started", on_execution_started)
+
+        url = "https://github.com/microsoft/TypeScript/commits/main"
+        session_id = "typescript_commits_session"
+        all_commits = []
+
+        js_next_page = """
+        const button = document.querySelector('a[data-testid="pagination-next-button"]');
+        if (button) button.click();
+        """
+
+        for page in range(3):  # Crawl 3 pages
+            result = await crawler.arun(
+                url=url,
+                session_id=session_id,
+                css_selector="li.Box-sc-g0xbh4-0",
+                js=js_next_page if page > 0 else None,
+                bypass_cache=True,
+                js_only=page > 0,
+                headless=False,
+            )
+
+            assert result.success, f"Failed to crawl page {page + 1}"
+
+            soup = BeautifulSoup(result.cleaned_html, "html.parser")
+            commits = soup.select("li")
+            all_commits.extend(commits)
+
+            print(f"Page {page + 1}: Found {len(commits)} commits")
+
+        await crawler.crawler_strategy.kill_session(session_id)
+        print(f"Successfully crawled {len(all_commits)} commits across 3 pages")
+
+async def crawl_dynamic_content_pages_method_2():
+    print("\n--- Advanced Multi-Page Crawling with JavaScript Execution ---")
+
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        url = "https://github.com/microsoft/TypeScript/commits/main"
+        session_id = "typescript_commits_session"
+        all_commits = []
+        last_commit = ""
+
+        js_next_page_and_wait = """
+        (async () => {
+            const getCurrentCommit = () => {
+                const commits = document.querySelectorAll('li.Box-sc-g0xbh4-0 h4');
+                return commits.length > 0 ? commits[0].textContent.trim() : null;
+            };
+
+            const initialCommit = getCurrentCommit();
+            const button = document.querySelector('a[data-testid="pagination-next-button"]');
+            if (button) button.click();
+
+            // Poll for changes
+            while (true) {
+                await new Promise(resolve => setTimeout(resolve, 100)); // Wait 100ms
+                const newCommit = getCurrentCommit();
+                if (newCommit && newCommit !== initialCommit) {
+                    break;
+                }
+            }
+        })();
+        """
+
+        schema = {
+            "name": "Commit Extractor",
+            "baseSelector": "li.Box-sc-g0xbh4-0",
+            "fields": [
+                {
+                    "name": "title",
+                    "selector": "h4.markdown-title",
+                    "type": "text",
+                    "transform": "strip",
+                },
+            ],
+        }
+        extraction_strategy = JsonCssExtractionStrategy(schema, verbose=True)
+
+        for page in range(3):  # Crawl 3 pages
+            result = await crawler.arun(
+                url=url,
+                session_id=session_id,
+                css_selector="li.Box-sc-g0xbh4-0",
+                extraction_strategy=extraction_strategy,
+                js_code=js_next_page_and_wait if page > 0 else None,
+                js_only=page > 0,
+                bypass_cache=True,
+                headless=False,
+            )
+
+            assert result.success, f"Failed to crawl page {page + 1}"
+
+            commits = json.loads(result.extracted_content)
+            all_commits.extend(commits)
+
+            print(f"Page {page + 1}: Found {len(commits)} commits")
+
+        await crawler.crawler_strategy.kill_session(session_id)
+        print(f"Successfully crawled {len(all_commits)} commits across 3 pages")
+
+async def crawl_dynamic_content_pages_method_3():
+    print("\n--- Advanced Multi-Page Crawling with JavaScript Execution using `wait_for` ---")
+
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        url = "https://github.com/microsoft/TypeScript/commits/main"
+        session_id = "typescript_commits_session"
+        all_commits = []
+
+        js_next_page = """
+        const commits = document.querySelectorAll('li.Box-sc-g0xbh4-0 h4');
+        if (commits.length > 0) {
+            window.firstCommit = commits[0].textContent.trim();
+        }
+        const button = document.querySelector('a[data-testid="pagination-next-button"]');
+        if (button) button.click();
+        """
+
+        wait_for = """() => {
+            const commits = document.querySelectorAll('li.Box-sc-g0xbh4-0 h4');
+            if (commits.length === 0) return false;
+            const firstCommit = commits[0].textContent.trim();
+            return firstCommit !== window.firstCommit;
+        }"""
+        
+        schema = {
+            "name": "Commit Extractor",
+            "baseSelector": "li.Box-sc-g0xbh4-0",
+            "fields": [
+                {
+                    "name": "title",
+                    "selector": "h4.markdown-title",
+                    "type": "text",
+                    "transform": "strip",
+                },
+            ],
+        }
+        extraction_strategy = JsonCssExtractionStrategy(schema, verbose=True)
+
+        for page in range(3):  # Crawl 3 pages
+            result = await crawler.arun(
+                url=url,
+                session_id=session_id,
+                css_selector="li.Box-sc-g0xbh4-0",
+                extraction_strategy=extraction_strategy,
+                js_code=js_next_page if page > 0 else None,
+                wait_for=wait_for if page > 0 else None,
+                js_only=page > 0,
+                bypass_cache=True,
+                headless=False,
+            )
+
+            assert result.success, f"Failed to crawl page {page + 1}"
+
+            commits = json.loads(result.extracted_content)
+            all_commits.extend(commits)
+
+            print(f"Page {page + 1}: Found {len(commits)} commits")
+
+        await crawler.crawler_strategy.kill_session(session_id)
+        print(f"Successfully crawled {len(all_commits)} commits across 3 pages")
+
+async def crawl_custom_browser_type():
+    # Use Firefox
+    start = time.time()
+    async with AsyncWebCrawler(browser_type="firefox", verbose=True, headless = True) as crawler:
+        result = await crawler.arun(url="https://www.example.com", bypass_cache=True)
+        print(result.markdown[:500])
+        print("Time taken: ", time.time() - start)
+
+    # Use WebKit
+    start = time.time()
+    async with AsyncWebCrawler(browser_type="webkit", verbose=True, headless = True) as crawler:
+        result = await crawler.arun(url="https://www.example.com", bypass_cache=True)
+        print(result.markdown[:500])
+        print("Time taken: ", time.time() - start)
+
+    # Use Chromium (default)
+    start = time.time()
+    async with AsyncWebCrawler(verbose=True, headless = True) as crawler:
+        result = await crawler.arun(url="https://www.example.com", bypass_cache=True)
+        print(result.markdown[:500])
+        print("Time taken: ", time.time() - start)
+
+async def crawl_with_user_simultion():
+    async with AsyncWebCrawler(verbose=True, headless=True) as crawler:
+        url = "YOUR-URL-HERE"
+        result = await crawler.arun(
+            url=url,            
+            bypass_cache=True,
+            magic = True, # Automatically detects and removes overlays, popups, and other elements that block content
+            # simulate_user = True,# Causes a series of random mouse movements and clicks to simulate user interaction
+            # override_navigator = True # Overrides the navigator object to make it look like a real user
+        )
+        
+        print(result.markdown)    
+
+async def speed_comparison():
+    # print("\n--- Speed Comparison ---")
+    # print("Firecrawl (simulated):")
+    # print("Time taken: 7.02 seconds")
+    # print("Content length: 42074 characters")
+    # print("Images found: 49")
+    # print()
+    # Simulated Firecrawl performance
+    from firecrawl import FirecrawlApp
+    app = FirecrawlApp(api_key=os.environ['FIRECRAWL_API_KEY'])
+    start = time.time()
+    scrape_status = app.scrape_url(
+    'https://www.nbcnews.com/business',
+    params={'formats': ['markdown', 'html']}
+    )
+    end = time.time()
+    print("Firecrawl (simulated):")
+    print(f"Time taken: {end - start:.2f} seconds")
+    print(f"Content length: {len(scrape_status['markdown'])} characters")
+    print(f"Images found: {scrape_status['markdown'].count('cldnry.s-nbcnews.com')}")
+    print()    
+
+    async with AsyncWebCrawler() as crawler:
+        # Crawl4AI simple crawl
+        start = time.time()
+        result = await crawler.arun(
+            url="https://www.nbcnews.com/business",
+            word_count_threshold=0,
+            bypass_cache=True,
+            verbose=False,
+        )
+        end = time.time()
+        print("Crawl4AI (simple crawl):")
+        print(f"Time taken: {end - start:.2f} seconds")
+        print(f"Content length: {len(result.markdown)} characters")
+        print(f"Images found: {result.markdown.count('cldnry.s-nbcnews.com')}")
+        print()
+
+        # Crawl4AI with JavaScript execution
+        start = time.time()
+        result = await crawler.arun(
+            url="https://www.nbcnews.com/business",
+            js_code=[
+                "const loadMoreButton = Array.from(document.querySelectorAll('button')).find(button => button.textContent.includes('Load More')); loadMoreButton && loadMoreButton.click();"
+            ],
+            word_count_threshold=0,
+            bypass_cache=True,
+            verbose=False,
+        )
+        end = time.time()
+        print("Crawl4AI (with JavaScript execution):")
+        print(f"Time taken: {end - start:.2f} seconds")
+        print(f"Content length: {len(result.markdown)} characters")
+        print(f"Images found: {result.markdown.count('cldnry.s-nbcnews.com')}")
+
+    print("\nNote on Speed Comparison:")
+    print("The speed test conducted here may not reflect optimal conditions.")
+    print("When we call Firecrawl's API, we're seeing its best performance,")
+    print("while Crawl4AI's performance is limited by the local network speed.")
+    print("For a more accurate comparison, it's recommended to run these tests")
+    print("on servers with a stable and fast internet connection.")
+    print("Despite these limitations, Crawl4AI still demonstrates faster performance.")
+    print("If you run these tests in an environment with better network conditions,")
+    print("you may observe an even more significant speed advantage for Crawl4AI.")
+
+async def generate_knowledge_graph():
+    class Entity(BaseModel):
+        name: str
+        description: str
+        
+    class Relationship(BaseModel):
+        entity1: Entity
+        entity2: Entity
+        description: str
+        relation_type: str
+
+    class KnowledgeGraph(BaseModel):
+        entities: List[Entity]
+        relationships: List[Relationship]
+
+    extraction_strategy = LLMExtractionStrategy(
+            provider='openai/gpt-4o-mini', # Or any other provider, including Ollama and open source models
+            api_token=os.getenv('OPENAI_API_KEY'), # In case of Ollama just pass "no-token"
+            schema=KnowledgeGraph.model_json_schema(),
+            extraction_type="schema",
+            instruction="""Extract entities and relationships from the given text."""
+    )
+    async with AsyncWebCrawler() as crawler:
+        url = "https://paulgraham.com/love.html"
+        result = await crawler.arun(
+            url=url,
+            bypass_cache=True,
+            extraction_strategy=extraction_strategy,
+            # magic=True
+        )
+        # print(result.extracted_content)
+        with open(os.path.join(__location__, "kb.json"), "w") as f:
+            f.write(result.extracted_content)
+
+async def fit_markdown_remove_overlay():
+    async with AsyncWebCrawler(headless = False) as crawler:
+        url = "https://janineintheworld.com/places-to-visit-in-central-mexico"
+        result = await crawler.arun(
+            url=url,
+            bypass_cache=True,
+            word_count_threshold = 10,
+            remove_overlay_elements=True,
+            screenshot = True
+        )
+        # Save markdown to file
+        with open(os.path.join(__location__, "mexico_places.md"), "w") as f:
+            f.write(result.fit_markdown)
+
+    print("Done")
+
+
+async def main():
+    await simple_crawl()
+    await simple_example_with_running_js_code()
+    await simple_example_with_css_selector()
+    await use_proxy()
+    await capture_and_save_screenshot("https://www.example.com", os.path.join(__location__, "tmp/example_screenshot.jpg"))
+    await extract_structured_data_using_css_extractor()
+
+    # LLM extraction examples
+    await extract_structured_data_using_llm()
+    await extract_structured_data_using_llm("huggingface/meta-llama/Meta-Llama-3.1-8B-Instruct", os.getenv("HUGGINGFACE_API_KEY"))
+    await extract_structured_data_using_llm("openai/gpt-4o", os.getenv("OPENAI_API_KEY"))
+    await extract_structured_data_using_llm("ollama/llama3.2")    
+
+    # You always can pass custom headers to the extraction strategy
+    custom_headers = {
+        "Authorization": "Bearer your-custom-token",
+        "X-Custom-Header": "Some-Value"
+    }
+    await extract_structured_data_using_llm(extra_headers=custom_headers)
+    
+    # await crawl_dynamic_content_pages_method_1()
+    # await crawl_dynamic_content_pages_method_2()
+    await crawl_dynamic_content_pages_method_3()
+    
+    await crawl_custom_browser_type()
+    
+    await speed_comparison()
+
+
+if __name__ == "__main__":
+    asyncio.run(main())

docs/examples/quickstart_sync.py

@@ -249,15 +249,40 @@ def using_crawler_hooks(crawler):
     
     cprint("\n🔗 [bold cyan]Using Crawler Hooks: Let's see how we can customize the crawler using hooks![/bold cyan]", True)
     
-    crawler.set_hook('on_driver_created', on_driver_created)
-    crawler.set_hook('before_get_url', before_get_url)
-    crawler.set_hook('after_get_url', after_get_url)
-    crawler.set_hook('before_return_html', before_return_html)
+    crawler_strategy = LocalSeleniumCrawlerStrategy(verbose=True)
+    crawler_strategy.set_hook('on_driver_created', on_driver_created)
+    crawler_strategy.set_hook('before_get_url', before_get_url)
+    crawler_strategy.set_hook('after_get_url', after_get_url)
+    crawler_strategy.set_hook('before_return_html', before_return_html)
     
+    crawler = WebCrawler(verbose=True, crawler_strategy=crawler_strategy)
+    crawler.warmup()    
     result = crawler.run(url="https://example.com")
     
     cprint("[LOG] 📦 [bold yellow]Crawler Hooks result:[/bold yellow]")
     print_result(result= result)
+    
+def using_crawler_hooks_dleay_example(crawler):
+    def delay(driver):
+        print("Delaying for 5 seconds...")
+        time.sleep(5)
+        print("Resuming...")
+        
+    def create_crawler():
+        crawler_strategy = LocalSeleniumCrawlerStrategy(verbose=True)
+        crawler_strategy.set_hook('after_get_url', delay)
+        crawler = WebCrawler(verbose=True, crawler_strategy=crawler_strategy)
+        crawler.warmup()
+        return crawler
+
+    cprint("\n🔗 [bold cyan]Using Crawler Hooks: Let's add a delay after fetching the url to make sure entire page is fetched.[/bold cyan]")
+    crawler = create_crawler()
+    result = crawler.run(url="https://google.com", bypass_cache=True)    
+    
+    cprint("[LOG] 📦 [bold yellow]Crawler Hooks result:[/bold yellow]")
+    print_result(result)
+    
+    
 
 def main():
     cprint("🌟 [bold green]Welcome to the Crawl4ai Quickstart Guide! Let's dive into some web crawling fun! 🌐[/bold green]")

docs/examples/quickstart_v0.ipynb

@@ -0,0 +1,735 @@
+{
+  "cells": [
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "6yLvrXn7yZQI"
+      },
+      "source": [
+        "# Crawl4AI: Advanced Web Crawling and Data Extraction\n",
+        "\n",
+        "Welcome to this interactive notebook showcasing Crawl4AI, an advanced asynchronous web crawling and data extraction library.\n",
+        "\n",
+        "- GitHub Repository: [https://github.com/unclecode/crawl4ai](https://github.com/unclecode/crawl4ai)\n",
+        "- Twitter: [@unclecode](https://twitter.com/unclecode)\n",
+        "- Website: [https://crawl4ai.com](https://crawl4ai.com)\n",
+        "\n",
+        "Let's explore the powerful features of Crawl4AI!"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "KIn_9nxFyZQK"
+      },
+      "source": [
+        "## Installation\n",
+        "\n",
+        "First, let's install Crawl4AI from GitHub:"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {
+        "id": "mSnaxLf3zMog"
+      },
+      "outputs": [],
+      "source": [
+        "!sudo apt-get update && sudo apt-get install -y libwoff1 libopus0 libwebp6 libwebpdemux2 libenchant1c2a libgudev-1.0-0 libsecret-1-0 libhyphen0 libgdk-pixbuf2.0-0 libegl1 libnotify4 libxslt1.1 libevent-2.1-7 libgles2 libvpx6 libxcomposite1 libatk1.0-0 libatk-bridge2.0-0 libepoxy0 libgtk-3-0 libharfbuzz-icu0"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {
+        "id": "xlXqaRtayZQK"
+      },
+      "outputs": [],
+      "source": [
+        "!pip install crawl4ai\n",
+        "!pip install nest-asyncio\n",
+        "!playwright install"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "qKCE7TI7yZQL"
+      },
+      "source": [
+        "Now, let's import the necessary libraries:"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": 1,
+      "metadata": {
+        "id": "I67tr7aAyZQL"
+      },
+      "outputs": [],
+      "source": [
+        "import asyncio\n",
+        "import nest_asyncio\n",
+        "from crawl4ai import AsyncWebCrawler\n",
+        "from crawl4ai.extraction_strategy import JsonCssExtractionStrategy, LLMExtractionStrategy\n",
+        "import json\n",
+        "import time\n",
+        "from pydantic import BaseModel, Field\n",
+        "\n",
+        "nest_asyncio.apply()"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "h7yR_Rt_yZQM"
+      },
+      "source": [
+        "## Basic Usage\n",
+        "\n",
+        "Let's start with a simple crawl example:"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": 2,
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "yBh6hf4WyZQM",
+        "outputId": "0f83af5c-abba-4175-ed95-70b7512e6bcc"
+      },
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "[LOG] 🌤️  Warming up the AsyncWebCrawler\n",
+            "[LOG] 🌞 AsyncWebCrawler is ready to crawl\n",
+            "[LOG] 🚀 Content extracted for https://www.nbcnews.com/business, success: True, time taken: 0.05 seconds\n",
+            "[LOG] 🚀 Extraction done for https://www.nbcnews.com/business, time taken: 0.05 seconds.\n",
+            "18102\n"
+          ]
+        }
+      ],
+      "source": [
+        "async def simple_crawl():\n",
+        "    async with AsyncWebCrawler(verbose=True) as crawler:\n",
+        "        result = await crawler.arun(url=\"https://www.nbcnews.com/business\")\n",
+        "        print(len(result.markdown))\n",
+        "await simple_crawl()"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "9rtkgHI28uI4"
+      },
+      "source": [
+        "💡 By default, **Crawl4AI** caches the result of every URL, so the next time you call it, you’ll get an instant result. But if you want to bypass the cache, just set `bypass_cache=True`."
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "MzZ0zlJ9yZQM"
+      },
+      "source": [
+        "## Advanced Features\n",
+        "\n",
+        "### Executing JavaScript and Using CSS Selectors"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": 3,
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "gHStF86xyZQM",
+        "outputId": "34d0fb6d-4dec-4677-f76e-85a1f082829b"
+      },
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "[LOG] 🌤️  Warming up the AsyncWebCrawler\n",
+            "[LOG] 🌞 AsyncWebCrawler is ready to crawl\n",
+            "[LOG] 🕸️ Crawling https://www.nbcnews.com/business using AsyncPlaywrightCrawlerStrategy...\n",
+            "[LOG] ✅ Crawled https://www.nbcnews.com/business successfully!\n",
+            "[LOG] 🚀 Crawling done for https://www.nbcnews.com/business, success: True, time taken: 6.06 seconds\n",
+            "[LOG] 🚀 Content extracted for https://www.nbcnews.com/business, success: True, time taken: 0.10 seconds\n",
+            "[LOG] 🔥 Extracting semantic blocks for https://www.nbcnews.com/business, Strategy: AsyncWebCrawler\n",
+            "[LOG] 🚀 Extraction done for https://www.nbcnews.com/business, time taken: 0.11 seconds.\n",
+            "41135\n"
+          ]
+        }
+      ],
+      "source": [
+        "async def js_and_css():\n",
+        "    async with AsyncWebCrawler(verbose=True) as crawler:\n",
+        "        js_code = [\"const loadMoreButton = Array.from(document.querySelectorAll('button')).find(button => button.textContent.includes('Load More')); loadMoreButton && loadMoreButton.click();\"]\n",
+        "        result = await crawler.arun(\n",
+        "            url=\"https://www.nbcnews.com/business\",\n",
+        "            js_code=js_code,\n",
+        "            # css_selector=\"YOUR_CSS_SELECTOR_HERE\",\n",
+        "            bypass_cache=True\n",
+        "        )\n",
+        "        print(len(result.markdown))\n",
+        "\n",
+        "await js_and_css()"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "cqE_W4coyZQM"
+      },
+      "source": [
+        "### Using a Proxy\n",
+        "\n",
+        "Note: You'll need to replace the proxy URL with a working proxy for this example to run successfully."
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {
+        "id": "QjAyiAGqyZQM"
+      },
+      "outputs": [],
+      "source": [
+        "async def use_proxy():\n",
+        "    async with AsyncWebCrawler(verbose=True, proxy=\"http://your-proxy-url:port\") as crawler:\n",
+        "        result = await crawler.arun(\n",
+        "            url=\"https://www.nbcnews.com/business\",\n",
+        "            bypass_cache=True\n",
+        "        )\n",
+        "        print(result.markdown[:500])  # Print first 500 characters\n",
+        "\n",
+        "# Uncomment the following line to run the proxy example\n",
+        "# await use_proxy()"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "XTZ88lbayZQN"
+      },
+      "source": [
+        "### Extracting Structured Data with OpenAI\n",
+        "\n",
+        "Note: You'll need to set your OpenAI API key as an environment variable for this example to work."
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": 14,
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "fIOlDayYyZQN",
+        "outputId": "cb8359cc-dee0-4762-9698-5dfdcee055b8"
+      },
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "[LOG] 🌤️  Warming up the AsyncWebCrawler\n",
+            "[LOG] 🌞 AsyncWebCrawler is ready to crawl\n",
+            "[LOG] 🕸️ Crawling https://openai.com/api/pricing/ using AsyncPlaywrightCrawlerStrategy...\n",
+            "[LOG] ✅ Crawled https://openai.com/api/pricing/ successfully!\n",
+            "[LOG] 🚀 Crawling done for https://openai.com/api/pricing/, success: True, time taken: 3.77 seconds\n",
+            "[LOG] 🚀 Content extracted for https://openai.com/api/pricing/, success: True, time taken: 0.21 seconds\n",
+            "[LOG] 🔥 Extracting semantic blocks for https://openai.com/api/pricing/, Strategy: AsyncWebCrawler\n",
+            "[LOG] Call LLM for https://openai.com/api/pricing/ - block index: 0\n",
+            "[LOG] Call LLM for https://openai.com/api/pricing/ - block index: 1\n",
+            "[LOG] Call LLM for https://openai.com/api/pricing/ - block index: 2\n",
+            "[LOG] Call LLM for https://openai.com/api/pricing/ - block index: 3\n",
+            "[LOG] Extracted 4 blocks from URL: https://openai.com/api/pricing/ block index: 3\n",
+            "[LOG] Call LLM for https://openai.com/api/pricing/ - block index: 4\n",
+            "[LOG] Extracted 5 blocks from URL: https://openai.com/api/pricing/ block index: 0\n",
+            "[LOG] Extracted 1 blocks from URL: https://openai.com/api/pricing/ block index: 4\n",
+            "[LOG] Extracted 8 blocks from URL: https://openai.com/api/pricing/ block index: 1\n",
+            "[LOG] Extracted 12 blocks from URL: https://openai.com/api/pricing/ block index: 2\n",
+            "[LOG] 🚀 Extraction done for https://openai.com/api/pricing/, time taken: 8.55 seconds.\n",
+            "5029\n"
+          ]
+        }
+      ],
+      "source": [
+        "import os\n",
+        "from google.colab import userdata\n",
+        "os.environ['OPENAI_API_KEY'] = userdata.get('OPENAI_API_KEY')\n",
+        "\n",
+        "class OpenAIModelFee(BaseModel):\n",
+        "    model_name: str = Field(..., description=\"Name of the OpenAI model.\")\n",
+        "    input_fee: str = Field(..., description=\"Fee for input token for the OpenAI model.\")\n",
+        "    output_fee: str = Field(..., description=\"Fee for output token for the OpenAI model.\")\n",
+        "\n",
+        "async def extract_openai_fees():\n",
+        "    async with AsyncWebCrawler(verbose=True) as crawler:\n",
+        "        result = await crawler.arun(\n",
+        "            url='https://openai.com/api/pricing/',\n",
+        "            word_count_threshold=1,\n",
+        "            extraction_strategy=LLMExtractionStrategy(\n",
+        "                provider=\"openai/gpt-4o\", api_token=os.getenv('OPENAI_API_KEY'),\n",
+        "                schema=OpenAIModelFee.schema(),\n",
+        "                extraction_type=\"schema\",\n",
+        "                instruction=\"\"\"From the crawled content, extract all mentioned model names along with their fees for input and output tokens.\n",
+        "                Do not miss any models in the entire content. One extracted model JSON format should look like this:\n",
+        "                {\"model_name\": \"GPT-4\", \"input_fee\": \"US$10.00 / 1M tokens\", \"output_fee\": \"US$30.00 / 1M tokens\"}.\"\"\"\n",
+        "            ),\n",
+        "            bypass_cache=True,\n",
+        "        )\n",
+        "        print(len(result.extracted_content))\n",
+        "\n",
+        "# Uncomment the following line to run the OpenAI extraction example\n",
+        "await extract_openai_fees()"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "BypA5YxEyZQN"
+      },
+      "source": [
+        "### Advanced Multi-Page Crawling with JavaScript Execution"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "tfkcVQ0b7mw-"
+      },
+      "source": [
+        "## Advanced Multi-Page Crawling with JavaScript Execution\n",
+        "\n",
+        "This example demonstrates Crawl4AI's ability to handle complex crawling scenarios, specifically extracting commits from multiple pages of a GitHub repository. The challenge here is that clicking the \"Next\" button doesn't load a new page, but instead uses asynchronous JavaScript to update the content. This is a common hurdle in modern web crawling.\n",
+        "\n",
+        "To overcome this, we use Crawl4AI's custom JavaScript execution to simulate clicking the \"Next\" button, and implement a custom hook to detect when new data has loaded. Our strategy involves comparing the first commit's text before and after \"clicking\" Next, waiting until it changes to confirm new data has rendered. This showcases Crawl4AI's flexibility in handling dynamic content and its ability to implement custom logic for even the most challenging crawling tasks."
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": 11,
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "qUBKGpn3yZQN",
+        "outputId": "3e555b6a-ed33-42f4-cce9-499a923fbe17"
+      },
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "[LOG] 🌤️  Warming up the AsyncWebCrawler\n",
+            "[LOG] 🌞 AsyncWebCrawler is ready to crawl\n",
+            "[LOG] 🕸️ Crawling https://github.com/microsoft/TypeScript/commits/main using AsyncPlaywrightCrawlerStrategy...\n",
+            "[LOG] ✅ Crawled https://github.com/microsoft/TypeScript/commits/main successfully!\n",
+            "[LOG] 🚀 Crawling done for https://github.com/microsoft/TypeScript/commits/main, success: True, time taken: 5.16 seconds\n",
+            "[LOG] 🚀 Content extracted for https://github.com/microsoft/TypeScript/commits/main, success: True, time taken: 0.28 seconds\n",
+            "[LOG] 🔥 Extracting semantic blocks for https://github.com/microsoft/TypeScript/commits/main, Strategy: AsyncWebCrawler\n",
+            "[LOG] 🚀 Extraction done for https://github.com/microsoft/TypeScript/commits/main, time taken: 0.28 seconds.\n",
+            "Page 1: Found 35 commits\n",
+            "[LOG] 🕸️ Crawling https://github.com/microsoft/TypeScript/commits/main using AsyncPlaywrightCrawlerStrategy...\n",
+            "[LOG] ✅ Crawled https://github.com/microsoft/TypeScript/commits/main successfully!\n",
+            "[LOG] 🚀 Crawling done for https://github.com/microsoft/TypeScript/commits/main, success: True, time taken: 0.78 seconds\n",
+            "[LOG] 🚀 Content extracted for https://github.com/microsoft/TypeScript/commits/main, success: True, time taken: 0.90 seconds\n",
+            "[LOG] 🔥 Extracting semantic blocks for https://github.com/microsoft/TypeScript/commits/main, Strategy: AsyncWebCrawler\n",
+            "[LOG] 🚀 Extraction done for https://github.com/microsoft/TypeScript/commits/main, time taken: 0.90 seconds.\n",
+            "Page 2: Found 35 commits\n",
+            "[LOG] 🕸️ Crawling https://github.com/microsoft/TypeScript/commits/main using AsyncPlaywrightCrawlerStrategy...\n",
+            "[LOG] ✅ Crawled https://github.com/microsoft/TypeScript/commits/main successfully!\n",
+            "[LOG] 🚀 Crawling done for https://github.com/microsoft/TypeScript/commits/main, success: True, time taken: 2.00 seconds\n",
+            "[LOG] 🚀 Content extracted for https://github.com/microsoft/TypeScript/commits/main, success: True, time taken: 0.74 seconds\n",
+            "[LOG] 🔥 Extracting semantic blocks for https://github.com/microsoft/TypeScript/commits/main, Strategy: AsyncWebCrawler\n",
+            "[LOG] 🚀 Extraction done for https://github.com/microsoft/TypeScript/commits/main, time taken: 0.75 seconds.\n",
+            "Page 3: Found 35 commits\n",
+            "Successfully crawled 105 commits across 3 pages\n"
+          ]
+        }
+      ],
+      "source": [
+        "import re\n",
+        "from bs4 import BeautifulSoup\n",
+        "\n",
+        "async def crawl_typescript_commits():\n",
+        "    first_commit = \"\"\n",
+        "    async def on_execution_started(page):\n",
+        "        nonlocal first_commit\n",
+        "        try:\n",
+        "            while True:\n",
+        "                await page.wait_for_selector('li.Box-sc-g0xbh4-0 h4')\n",
+        "                commit = await page.query_selector('li.Box-sc-g0xbh4-0 h4')\n",
+        "                commit = await commit.evaluate('(element) => element.textContent')\n",
+        "                commit = re.sub(r'\\s+', '', commit)\n",
+        "                if commit and commit != first_commit:\n",
+        "                    first_commit = commit\n",
+        "                    break\n",
+        "                await asyncio.sleep(0.5)\n",
+        "        except Exception as e:\n",
+        "            print(f\"Warning: New content didn't appear after JavaScript execution: {e}\")\n",
+        "\n",
+        "    async with AsyncWebCrawler(verbose=True) as crawler:\n",
+        "        crawler.crawler_strategy.set_hook('on_execution_started', on_execution_started)\n",
+        "\n",
+        "        url = \"https://github.com/microsoft/TypeScript/commits/main\"\n",
+        "        session_id = \"typescript_commits_session\"\n",
+        "        all_commits = []\n",
+        "\n",
+        "        js_next_page = \"\"\"\n",
+        "        const button = document.querySelector('a[data-testid=\"pagination-next-button\"]');\n",
+        "        if (button) button.click();\n",
+        "        \"\"\"\n",
+        "\n",
+        "        for page in range(3):  # Crawl 3 pages\n",
+        "            result = await crawler.arun(\n",
+        "                url=url,\n",
+        "                session_id=session_id,\n",
+        "                css_selector=\"li.Box-sc-g0xbh4-0\",\n",
+        "                js=js_next_page if page > 0 else None,\n",
+        "                bypass_cache=True,\n",
+        "                js_only=page > 0\n",
+        "            )\n",
+        "\n",
+        "            assert result.success, f\"Failed to crawl page {page + 1}\"\n",
+        "\n",
+        "            soup = BeautifulSoup(result.cleaned_html, 'html.parser')\n",
+        "            commits = soup.select(\"li\")\n",
+        "            all_commits.extend(commits)\n",
+        "\n",
+        "            print(f\"Page {page + 1}: Found {len(commits)} commits\")\n",
+        "\n",
+        "        await crawler.crawler_strategy.kill_session(session_id)\n",
+        "        print(f\"Successfully crawled {len(all_commits)} commits across 3 pages\")\n",
+        "\n",
+        "await crawl_typescript_commits()"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "EJRnYsp6yZQN"
+      },
+      "source": [
+        "### Using JsonCssExtractionStrategy for Fast Structured Output"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "1ZMqIzB_8SYp"
+      },
+      "source": [
+        "The JsonCssExtractionStrategy is a powerful feature of Crawl4AI that allows for precise, structured data extraction from web pages. Here's how it works:\n",
+        "\n",
+        "1. You define a schema that describes the pattern of data you're interested in extracting.\n",
+        "2. The schema includes a base selector that identifies repeating elements on the page.\n",
+        "3. Within the schema, you define fields, each with its own selector and type.\n",
+        "4. These field selectors are applied within the context of each base selector element.\n",
+        "5. The strategy supports nested structures, lists within lists, and various data types.\n",
+        "6. You can even include computed fields for more complex data manipulation.\n",
+        "\n",
+        "This approach allows for highly flexible and precise data extraction, transforming semi-structured web content into clean, structured JSON data. It's particularly useful for extracting consistent data patterns from pages like product listings, news articles, or search results.\n",
+        "\n",
+        "For more details and advanced usage, check out the full documentation on the Crawl4AI website."
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": 12,
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "trCMR2T9yZQN",
+        "outputId": "718d36f4-cccf-40f4-8d8c-c3ba73524d16"
+      },
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "[LOG] 🌤️  Warming up the AsyncWebCrawler\n",
+            "[LOG] 🌞 AsyncWebCrawler is ready to crawl\n",
+            "[LOG] 🕸️ Crawling https://www.nbcnews.com/business using AsyncPlaywrightCrawlerStrategy...\n",
+            "[LOG] ✅ Crawled https://www.nbcnews.com/business successfully!\n",
+            "[LOG] 🚀 Crawling done for https://www.nbcnews.com/business, success: True, time taken: 7.00 seconds\n",
+            "[LOG] 🚀 Content extracted for https://www.nbcnews.com/business, success: True, time taken: 0.32 seconds\n",
+            "[LOG] 🔥 Extracting semantic blocks for https://www.nbcnews.com/business, Strategy: AsyncWebCrawler\n",
+            "[LOG] 🚀 Extraction done for https://www.nbcnews.com/business, time taken: 0.48 seconds.\n",
+            "Successfully extracted 11 news teasers\n",
+            "{\n",
+            "  \"category\": \"Business News\",\n",
+            "  \"headline\": \"NBC ripped up its Olympics playbook for 2024 \\u2014 so far, the new strategy paid off\",\n",
+            "  \"summary\": \"The Olympics have long been key to NBCUniversal. Paris marked the 18th Olympic Games broadcast by NBC in the U.S.\",\n",
+            "  \"time\": \"13h ago\",\n",
+            "  \"image\": {\n",
+            "    \"src\": \"https://media-cldnry.s-nbcnews.com/image/upload/t_focal-200x100,f_auto,q_auto:best/rockcms/2024-09/240903-nbc-olympics-ch-1344-c7a486.jpg\",\n",
+            "    \"alt\": \"Mike Tirico.\"\n",
+            "  },\n",
+            "  \"link\": \"https://www.nbcnews.com/business\"\n",
+            "}\n"
+          ]
+        }
+      ],
+      "source": [
+        "async def extract_news_teasers():\n",
+        "    schema = {\n",
+        "        \"name\": \"News Teaser Extractor\",\n",
+        "        \"baseSelector\": \".wide-tease-item__wrapper\",\n",
+        "        \"fields\": [\n",
+        "            {\n",
+        "                \"name\": \"category\",\n",
+        "                \"selector\": \".unibrow span[data-testid='unibrow-text']\",\n",
+        "                \"type\": \"text\",\n",
+        "            },\n",
+        "            {\n",
+        "                \"name\": \"headline\",\n",
+        "                \"selector\": \".wide-tease-item__headline\",\n",
+        "                \"type\": \"text\",\n",
+        "            },\n",
+        "            {\n",
+        "                \"name\": \"summary\",\n",
+        "                \"selector\": \".wide-tease-item__description\",\n",
+        "                \"type\": \"text\",\n",
+        "            },\n",
+        "            {\n",
+        "                \"name\": \"time\",\n",
+        "                \"selector\": \"[data-testid='wide-tease-date']\",\n",
+        "                \"type\": \"text\",\n",
+        "            },\n",
+        "            {\n",
+        "                \"name\": \"image\",\n",
+        "                \"type\": \"nested\",\n",
+        "                \"selector\": \"picture.teasePicture img\",\n",
+        "                \"fields\": [\n",
+        "                    {\"name\": \"src\", \"type\": \"attribute\", \"attribute\": \"src\"},\n",
+        "                    {\"name\": \"alt\", \"type\": \"attribute\", \"attribute\": \"alt\"},\n",
+        "                ],\n",
+        "            },\n",
+        "            {\n",
+        "                \"name\": \"link\",\n",
+        "                \"selector\": \"a[href]\",\n",
+        "                \"type\": \"attribute\",\n",
+        "                \"attribute\": \"href\",\n",
+        "            },\n",
+        "        ],\n",
+        "    }\n",
+        "\n",
+        "    extraction_strategy = JsonCssExtractionStrategy(schema, verbose=True)\n",
+        "\n",
+        "    async with AsyncWebCrawler(verbose=True) as crawler:\n",
+        "        result = await crawler.arun(\n",
+        "            url=\"https://www.nbcnews.com/business\",\n",
+        "            extraction_strategy=extraction_strategy,\n",
+        "            bypass_cache=True,\n",
+        "        )\n",
+        "\n",
+        "        assert result.success, \"Failed to crawl the page\"\n",
+        "\n",
+        "        news_teasers = json.loads(result.extracted_content)\n",
+        "        print(f\"Successfully extracted {len(news_teasers)} news teasers\")\n",
+        "        print(json.dumps(news_teasers[0], indent=2))\n",
+        "\n",
+        "await extract_news_teasers()"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "FnyVhJaByZQN"
+      },
+      "source": [
+        "## Speed Comparison\n",
+        "\n",
+        "Let's compare the speed of Crawl4AI with Firecrawl, a paid service. Note that we can't run Firecrawl in this Colab environment, so we'll simulate its performance based on previously recorded data."
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "agDD186f3wig"
+      },
+      "source": [
+        "💡 **Note on Speed Comparison:**\n",
+        "\n",
+        "The speed test conducted here is running on Google Colab, where the internet speed and performance can vary and may not reflect optimal conditions. When we call Firecrawl's API, we're seeing its best performance, while Crawl4AI's performance is limited by Colab's network speed.\n",
+        "\n",
+        "For a more accurate comparison, it's recommended to run these tests on your own servers or computers with a stable and fast internet connection. Despite these limitations, Crawl4AI still demonstrates faster performance in this environment.\n",
+        "\n",
+        "If you run these tests locally, you may observe an even more significant speed advantage for Crawl4AI compared to other services."
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {
+        "id": "F7KwHv8G1LbY"
+      },
+      "outputs": [],
+      "source": [
+        "!pip install firecrawl"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": 4,
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "91813zILyZQN",
+        "outputId": "663223db-ab89-4976-b233-05ceca62b19b"
+      },
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "Firecrawl (simulated):\n",
+            "Time taken: 4.38 seconds\n",
+            "Content length: 41967 characters\n",
+            "Images found: 49\n",
+            "\n",
+            "Crawl4AI (simple crawl):\n",
+            "Time taken: 4.22 seconds\n",
+            "Content length: 18221 characters\n",
+            "Images found: 49\n",
+            "\n",
+            "Crawl4AI (with JavaScript execution):\n",
+            "Time taken: 9.13 seconds\n",
+            "Content length: 34243 characters\n",
+            "Images found: 89\n"
+          ]
+        }
+      ],
+      "source": [
+        "import os\n",
+        "from google.colab import userdata\n",
+        "os.environ['FIRECRAWL_API_KEY'] = userdata.get('FIRECRAWL_API_KEY')\n",
+        "import time\n",
+        "from firecrawl import FirecrawlApp\n",
+        "\n",
+        "async def speed_comparison():\n",
+        "    # Simulated Firecrawl performance\n",
+        "    app = FirecrawlApp(api_key=os.environ['FIRECRAWL_API_KEY'])\n",
+        "    start = time.time()\n",
+        "    scrape_status = app.scrape_url(\n",
+        "    'https://www.nbcnews.com/business',\n",
+        "    params={'formats': ['markdown', 'html']}\n",
+        "    )\n",
+        "    end = time.time()\n",
+        "    print(\"Firecrawl (simulated):\")\n",
+        "    print(f\"Time taken: {end - start:.2f} seconds\")\n",
+        "    print(f\"Content length: {len(scrape_status['markdown'])} characters\")\n",
+        "    print(f\"Images found: {scrape_status['markdown'].count('cldnry.s-nbcnews.com')}\")\n",
+        "    print()\n",
+        "\n",
+        "    async with AsyncWebCrawler() as crawler:\n",
+        "        # Crawl4AI simple crawl\n",
+        "        start = time.time()\n",
+        "        result = await crawler.arun(\n",
+        "            url=\"https://www.nbcnews.com/business\",\n",
+        "            word_count_threshold=0,\n",
+        "            bypass_cache=True,\n",
+        "            verbose=False\n",
+        "        )\n",
+        "        end = time.time()\n",
+        "        print(\"Crawl4AI (simple crawl):\")\n",
+        "        print(f\"Time taken: {end - start:.2f} seconds\")\n",
+        "        print(f\"Content length: {len(result.markdown)} characters\")\n",
+        "        print(f\"Images found: {result.markdown.count('cldnry.s-nbcnews.com')}\")\n",
+        "        print()\n",
+        "\n",
+        "        # Crawl4AI with JavaScript execution\n",
+        "        start = time.time()\n",
+        "        result = await crawler.arun(\n",
+        "            url=\"https://www.nbcnews.com/business\",\n",
+        "            js_code=[\"const loadMoreButton = Array.from(document.querySelectorAll('button')).find(button => button.textContent.includes('Load More')); loadMoreButton && loadMoreButton.click();\"],\n",
+        "            word_count_threshold=0,\n",
+        "            bypass_cache=True,\n",
+        "            verbose=False\n",
+        "        )\n",
+        "        end = time.time()\n",
+        "        print(\"Crawl4AI (with JavaScript execution):\")\n",
+        "        print(f\"Time taken: {end - start:.2f} seconds\")\n",
+        "        print(f\"Content length: {len(result.markdown)} characters\")\n",
+        "        print(f\"Images found: {result.markdown.count('cldnry.s-nbcnews.com')}\")\n",
+        "\n",
+        "await speed_comparison()"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "OBFFYVJIyZQN"
+      },
+      "source": [
+        "If you run on a local machine with a proper internet speed:\n",
+        "- Simple crawl: Crawl4AI is typically over 3-4 times faster than Firecrawl.\n",
+        "- With JavaScript execution: Even when executing JavaScript to load more content (potentially doubling the number of images found), Crawl4AI is still faster than Firecrawl's simple crawl.\n",
+        "\n",
+        "Please note that actual performance may vary depending on network conditions and the specific content being crawled."
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "A6_1RK1_yZQO"
+      },
+      "source": [
+        "## Conclusion\n",
+        "\n",
+        "In this notebook, we've explored the powerful features of Crawl4AI, including:\n",
+        "\n",
+        "1. Basic crawling\n",
+        "2. JavaScript execution and CSS selector usage\n",
+        "3. Proxy support\n",
+        "4. Structured data extraction with OpenAI\n",
+        "5. Advanced multi-page crawling with JavaScript execution\n",
+        "6. Fast structured output using JsonCssExtractionStrategy\n",
+        "7. Speed comparison with other services\n",
+        "\n",
+        "Crawl4AI offers a fast, flexible, and powerful solution for web crawling and data extraction tasks. Its asynchronous architecture and advanced features make it suitable for a wide range of applications, from simple web scraping to complex, multi-page data extraction scenarios.\n",
+        "\n",
+        "For more information and advanced usage, please visit the [Crawl4AI documentation](https://crawl4ai.com/mkdocs/).\n",
+        "\n",
+        "Happy crawling!"
+      ]
+    }
+  ],
+  "metadata": {
+    "colab": {
+      "provenance": []
+    },
+    "kernelspec": {
+      "display_name": "venv",
+      "language": "python",
+      "name": "python3"
+    },
+    "language_info": {
+      "codemirror_mode": {
+        "name": "ipython",
+        "version": 3
+      },
+      "file_extension": ".py",
+      "mimetype": "text/x-python",
+      "name": "python",
+      "nbconvert_exporter": "python",
+      "pygments_lexer": "ipython3",
+      "version": "3.10.13"
+    }
+  },
+  "nbformat": 4,
+  "nbformat_minor": 0
+}

docs/examples/research_assistant.py

@@ -1,4 +1,4 @@
-# Make sur to install the required packageschainlit and groq
+# Make sure to install the required packageschainlit and groq
 import os, time
 from openai import AsyncOpenAI
 import chainlit as cl

docs/examples/sample_ecommerce.html

@@ -0,0 +1,106 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Sample E-commerce Page for JsonCssExtractionStrategy Testing</title>
+    <style>
+        body { font-family: Arial, sans-serif; line-height: 1.6; padding: 20px; }
+        .category { border: 1px solid #ddd; margin-bottom: 20px; padding: 10px; }
+        .product { border: 1px solid #eee; margin: 10px 0; padding: 10px; }
+        .product-details, .product-reviews, .related-products { margin-top: 10px; }
+        .review { background-color: #f9f9f9; margin: 5px 0; padding: 5px; }
+    </style>
+</head>
+<body>
+    <h1>Sample E-commerce Product Catalog</h1>
+    <div id="catalog"></div>
+
+    <script>
+        const categories = ['Electronics', 'Home & Kitchen', 'Books'];
+        const products = [
+            {
+                name: 'Smartphone X',
+                price: '$999',
+                brand: 'TechCorp',
+                model: 'X-2000',
+                features: ['5G capable', '6.5" OLED screen', '128GB storage'],
+                reviews: [
+                    { reviewer: 'John D.', rating: '4.5', text: 'Great phone, love the camera!' },
+                    { reviewer: 'Jane S.', rating: '5', text: 'Best smartphone I\'ve ever owned.' }
+                ],
+                related: [
+                    { name: 'Phone Case', price: '$29.99' },
+                    { name: 'Screen Protector', price: '$9.99' }
+                ]
+            },
+            {
+                name: 'Laptop Pro',
+                price: '$1499',
+                brand: 'TechMaster',
+                model: 'LT-3000',
+                features: ['Intel i7 processor', '16GB RAM', '512GB SSD'],
+                reviews: [
+                    { reviewer: 'Alice W.', rating: '4', text: 'Powerful machine, but a bit heavy.' },
+                    { reviewer: 'Bob M.', rating: '5', text: 'Perfect for my development work!' }
+                ],
+                related: [
+                    { name: 'Laptop Bag', price: '$49.99' },
+                    { name: 'Wireless Mouse', price: '$24.99' }
+                ]
+            }
+        ];
+
+        function createProductHTML(product) {
+            return `
+                <div class="product">
+                    <h3 class="product-name">${product.name}</h3>
+                    <p class="product-price">${product.price}</p>
+                    <div class="product-details">
+                        <span class="brand">${product.brand}</span>
+                        <span class="model">${product.model}</span>
+                    </div>
+                    <ul class="product-features">
+                        ${product.features.map(feature => `<li>${feature}</li>`).join('')}
+                    </ul>
+                    <div class="product-reviews">
+                        ${product.reviews.map(review => `
+                            <div class="review">
+                                <span class="reviewer">${review.reviewer}</span>
+                                <span class="rating">${review.rating}</span>
+                                <p class="review-text">${review.text}</p>
+                            </div>
+                        `).join('')}
+                    </div>
+                    <ul class="related-products">
+                        ${product.related.map(item => `
+                            <li>
+                                <span class="related-name">${item.name}</span>
+                                <span class="related-price">${item.price}</span>
+                            </li>
+                        `).join('')}
+                    </ul>
+                </div>
+            `;
+        }
+
+        function createCategoryHTML(category, products) {
+            return `
+                <div class="category">
+                    <h2 class="category-name">${category}</h2>
+                    ${products.map(createProductHTML).join('')}
+                </div>
+            `;
+        }
+
+        function populateCatalog() {
+            const catalog = document.getElementById('catalog');
+            categories.forEach(category => {
+                catalog.innerHTML += createCategoryHTML(category, products);
+            });
+        }
+
+        populateCatalog();
+    </script>
+</body>
+</html>

docs/examples/summarize_page.py

@@ -42,5 +42,5 @@ page_summary = json.loads(result.extracted_content)
 
 print(page_summary)
 
-with open(".data/page_summary.json", "w") as f:
+with open(".data/page_summary.json", "w", encoding="utf-8") as f:
     f.write(result.extracted_content)

docs/examples/tmp/research_assistant_audio_not_completed.py

@@ -1,4 +1,4 @@
-# Make sur to install the required packageschainlit and groq
+# Make sure to install the required packageschainlit and groq
 import os, time
 from openai import AsyncOpenAI
 import chainlit as cl

docs/extraction_strategies.json

@@ -1,10 +0,0 @@
-{
-    "NoExtractionStrategy": "### NoExtractionStrategy\n\n`NoExtractionStrategy` is a basic extraction strategy that returns the entire HTML content without any modification. It is useful for cases where no specific extraction is required. Only clean html, and amrkdown.\n\n#### Constructor Parameters:\nNone.\n\n#### Example usage:\n```python\nextractor = NoExtractionStrategy()\nextracted_content = extractor.extract(url, html)\n```",
-    
-    "LLMExtractionStrategy": "### LLMExtractionStrategy\n\n`LLMExtractionStrategy` uses a Language Model (LLM) to extract meaningful blocks or chunks from the given HTML content. This strategy leverages an external provider for language model completions.\n\n#### Constructor Parameters:\n- `provider` (str, optional): The provider to use for the language model completions. Default is `DEFAULT_PROVIDER` (e.g., openai/gpt-4).\n- `api_token` (str, optional): The API token for the provider. If not provided, it will try to load from the environment variable `OPENAI_API_KEY`.\n- `instruction` (str, optional): An instruction to guide the LLM on how to perform the extraction. This allows users to specify the type of data they are interested in or set the tone of the response. Default is `None`.\n\n#### Example usage:\n```python\nextractor = LLMExtractionStrategy(provider='openai', api_token='your_api_token', instruction='Extract only news about AI.')\nextracted_content = extractor.extract(url, html)\n```\n\nBy providing clear instructions, users can tailor the extraction process to their specific needs, enhancing the relevance and utility of the extracted content.",
-    
-    "CosineStrategy": "### CosineStrategy\n\n`CosineStrategy` uses hierarchical clustering based on cosine similarity to extract clusters of text from the given HTML content. This strategy is suitable for identifying related content sections.\n\n#### Constructor Parameters:\n- `semantic_filter` (str, optional): A string containing keywords for filtering relevant documents before clustering. If provided, documents are filtered based on their cosine similarity to the keyword filter embedding. Default is `None`.\n- `word_count_threshold` (int, optional): Minimum number of words per cluster. Default is `20`.\n- `max_dist` (float, optional): The maximum cophenetic distance on the dendrogram to form clusters. Default is `0.2`.\n- `linkage_method` (str, optional): The linkage method for hierarchical clustering. Default is `'ward'`.\n- `top_k` (int, optional): Number of top categories to extract. Default is `3`.\n- `model_name` (str, optional): The model name for embedding generation. Default is `'BAAI/bge-small-en-v1.5'`.\n\n#### Example usage:\n```python\nextractor = CosineStrategy(semantic_filter='artificial intelligence', word_count_threshold=10, max_dist=0.2, linkage_method='ward', top_k=3, model_name='BAAI/bge-small-en-v1.5')\nextracted_content = extractor.extract(url, html)\n```\n\n#### Cosine Similarity Filtering\n\nWhen a `semantic_filter` is provided, the `CosineStrategy` applies an embedding-based filtering process to select relevant documents before performing hierarchical clustering.",
-    
-    "TopicExtractionStrategy": "### TopicExtractionStrategy\n\n`TopicExtractionStrategy` uses the TextTiling algorithm to segment the HTML content into topics and extracts keywords for each segment. This strategy is useful for identifying and summarizing thematic content.\n\n#### Constructor Parameters:\n- `num_keywords` (int, optional): Number of keywords to represent each topic segment. Default is `3`.\n\n#### Example usage:\n```python\nextractor = TopicExtractionStrategy(num_keywords=3)\nextracted_content = extractor.extract(url, html)\n```"
-  }
-  

docs/md/api/core_classes_and_functions.md

@@ -1,141 +0,0 @@
-# Core Classes and Functions
-
-## Overview
-
-In this section, we will delve into the core classes and functions that make up the Crawl4AI library. This includes the `WebCrawler` class, various `CrawlerStrategy` classes, `ChunkingStrategy` classes, and `ExtractionStrategy` classes. Understanding these core components will help you leverage the full power of Crawl4AI for your web crawling and data extraction needs.
-
-## WebCrawler Class
-
-The `WebCrawler` class is the main class you'll interact with. It provides the interface for crawling web pages and extracting data.
-
-### Initialization
-
-```python
-from crawl4ai import WebCrawler
-
-# Create an instance of WebCrawler
-crawler = WebCrawler()
-```
-
-### Methods
-
-- **`warmup()`**: Prepares the crawler for use, such as loading necessary models.
-- **`run(url: str, **kwargs)`**: Runs the crawler on the specified URL with optional parameters for customization.
-
-```python
-crawler.warmup()
-result = crawler.run(url="https://www.nbcnews.com/business")
-print(result)
-```
-
-## CrawlerStrategy Classes
-
-The `CrawlerStrategy` classes define how the web crawling is executed. The base class is `CrawlerStrategy`, which is extended by specific implementations like `LocalSeleniumCrawlerStrategy`.
-
-### CrawlerStrategy Base Class
-
-An abstract base class that defines the interface for different crawler strategies.
-
-```python
-from abc import ABC, abstractmethod
-
-class CrawlerStrategy(ABC):
-    @abstractmethod
-    def crawl(self, url: str, **kwargs) -> str:
-        pass
-    
-    @abstractmethod
-    def take_screenshot(self, save_path: str):
-        pass
-    
-    @abstractmethod
-    def update_user_agent(self, user_agent: str):
-        pass
-    
-    @abstractmethod
-    def set_hook(self, hook_type: str, hook: Callable):
-        pass
-```
-
-### LocalSeleniumCrawlerStrategy Class
-
-A concrete implementation of `CrawlerStrategy` that uses Selenium to crawl web pages.
-
-#### Initialization
-
-```python
-from crawl4ai.crawler_strategy import LocalSeleniumCrawlerStrategy
-
-strategy = LocalSeleniumCrawlerStrategy(js_code=["console.log('Hello, world!');"])
-```
-
-#### Methods
-
-- **`crawl(url: str, **kwargs)`**: Crawls the specified URL.
-- **`take_screenshot(save_path: str)`**: Takes a screenshot of the current page.
-- **`update_user_agent(user_agent: str)`**: Updates the user agent for the browser.
-- **`set_hook(hook_type: str, hook: Callable)`**: Sets a hook for various events.
-
-```python
-result = strategy.crawl("https://www.example.com")
-strategy.take_screenshot("screenshot.png")
-strategy.update_user_agent("Mozilla/5.0")
-strategy.set_hook("before_get_url", lambda: print("About to get URL"))
-```
-
-## ChunkingStrategy Classes
-
-The `ChunkingStrategy` classes define how the text from a web page is divided into chunks. Here are a few examples:
-
-### RegexChunking Class
-
-Splits text using regular expressions.
-
-```python
-from crawl4ai.chunking_strategy import RegexChunking
-
-chunker = RegexChunking(patterns=[r'\n\n'])
-chunks = chunker.chunk("This is a sample text. It will be split into chunks.")
-```
-
-### NlpSentenceChunking Class
-
-Uses NLP to split text into sentences.
-
-```python
-from crawl4ai.chunking_strategy import NlpSentenceChunking
-
-chunker = NlpSentenceChunking()
-chunks = chunker.chunk("This is a sample text. It will be split into sentences.")
-```
-
-## ExtractionStrategy Classes
-
-The `ExtractionStrategy` classes define how meaningful content is extracted from the chunks. Here are a few examples:
-
-### CosineStrategy Class
-
-Clusters text chunks based on cosine similarity.
-
-```python
-from crawl4ai.extraction_strategy import CosineStrategy
-
-extractor = CosineStrategy(semantic_filter="finance", word_count_threshold=10)
-extracted_content = extractor.extract(url="https://www.example.com", html="<html>...</html>")
-```
-
-### LLMExtractionStrategy Class
-
-Uses a Language Model to extract meaningful blocks from HTML.
-
-```python
-from crawl4ai.extraction_strategy import LLMExtractionStrategy
-
-extractor = LLMExtractionStrategy(provider='openai', api_token='your_api_token', instruction='Extract only news about AI.')
-extracted_content = extractor.extract(url="https://www.example.com", html="<html>...</html>")
-```
-
-## Conclusion
-
-By understanding these core classes and functions, you can customize and extend Crawl4AI to suit your specific web crawling and data extraction needs. Happy crawling! 🕷️🤖
-

docs/md/api/detailed_api_documentation.md

@@ -1,338 +0,0 @@
-# Detailed API Documentation
-
-## Overview
-
-This section provides comprehensive documentation for the Crawl4AI API, covering all classes, methods, and their parameters. This guide will help you understand how to utilize the API to its full potential, enabling efficient web crawling and data extraction.
-
-## WebCrawler Class
-
-The `WebCrawler` class is the primary interface for crawling web pages and extracting data.
-
-### Initialization
-
-```python
-from crawl4ai import WebCrawler
-
-crawler = WebCrawler()
-```
-
-### Methods
-
-#### `warmup()`
-
-Prepares the crawler for use, such as loading necessary models.
-
-```python
-crawler.warmup()
-```
-
-#### `run(url: str, **kwargs) -> CrawlResult`
-
-Crawls the specified URL and returns the result.
-
-- **Parameters:**
-  - `url` (str): The URL to crawl.
-  - `**kwargs`: Additional parameters for customization.
-
-- **Returns:**
-  - `CrawlResult`: An object containing the crawl result.
-
-- **Example:**
-
-```python
-result = crawler.run(url="https://www.nbcnews.com/business")
-print(result)
-```
-
-### CrawlResult Class
-
-Represents the result of a crawl operation.
-
-- **Attributes:**
-  - `url` (str): The URL of the crawled page.
-  - `html` (str): The raw HTML of the page.
-  - `success` (bool): Whether the crawl was successful.
-  - `cleaned_html` (Optional[str]): The cleaned HTML.
-  - `media` (Dict[str, List[Dict]]): Media tags in the page (images, audio, video).
-  - `links` (Dict[str, List[Dict]]): Links in the page (external, internal).
-  - `screenshot` (Optional[str]): Base64 encoded screenshot.
-  - `markdown` (Optional[str]): Extracted content in Markdown format.
-  - `extracted_content` (Optional[str]): Extracted meaningful content.
-  - `metadata` (Optional[dict]): Metadata from the page.
-  - `error_message` (Optional[str]): Error message if any.
-
-## CrawlerStrategy Classes
-
-The `CrawlerStrategy` classes define how the web crawling is executed.
-
-### CrawlerStrategy Base Class
-
-An abstract base class for different crawler strategies.
-
-#### Methods
-
-- **`crawl(url: str, **kwargs) -> str`**: Crawls the specified URL.
-- **`take_screenshot(save_path: str)`**: Takes a screenshot of the current page.
-- **`update_user_agent(user_agent: str)`**: Updates the user agent for the browser.
-- **`set_hook(hook_type: str, hook: Callable)`**: Sets a hook for various events.
-
-### LocalSeleniumCrawlerStrategy Class
-
-Uses Selenium to crawl web pages.
-
-#### Initialization
-
-```python
-from crawl4ai.crawler_strategy import LocalSeleniumCrawlerStrategy
-
-strategy = LocalSeleniumCrawlerStrategy(js_code=["console.log('Hello, world!');"])
-```
-
-#### Methods
-
-- **`crawl(url: str, **kwargs)`**: Crawls the specified URL.
-- **`take_screenshot(save_path: str)`**: Takes a screenshot of the current page.
-- **`update_user_agent(user_agent: str)`**: Updates the user agent for the browser.
-- **`set_hook(hook_type: str, hook: Callable)`**: Sets a hook for various events.
-
-#### Example
-
-```python
-result = strategy.crawl("https://www.example.com")
-strategy.take_screenshot("screenshot.png")
-strategy.update_user_agent("Mozilla/5.0")
-strategy.set_hook("before_get_url", lambda: print("About to get URL"))
-```
-
-## ChunkingStrategy Classes
-
-The `ChunkingStrategy` classes define how the text from a web page is divided into chunks.
-
-### RegexChunking Class
-
-Splits text using regular expressions.
-
-#### Initialization
-
-```python
-from crawl4ai.chunking_strategy import RegexChunking
-
-chunker = RegexChunking(patterns=[r'\n\n'])
-```
-
-#### Methods
-
-- **`chunk(text: str) -> List[str]`**: Splits the text into chunks.
-
-#### Example
-
-```python
-chunks = chunker.chunk("This is a sample text. It will be split into chunks.")
-```
-
-### NlpSentenceChunking Class
-
-Uses NLP to split text into sentences.
-
-#### Initialization
-
-```python
-from crawl4ai.chunking_strategy import NlpSentenceChunking
-
-chunker = NlpSentenceChunking()
-```
-
-#### Methods
-
-- **`chunk(text: str) -> List[str]`**: Splits the text into sentences.
-
-#### Example
-
-```python
-chunks = chunker.chunk("This is a sample text. It will be split into sentences.")
-```
-
-### TopicSegmentationChunking Class
-
-Uses the TextTiling algorithm to segment text into topics.
-
-#### Initialization
-
-```python
-from crawl4ai.chunking_strategy import TopicSegmentationChunking
-
-chunker = TopicSegmentationChunking(num_keywords=3)
-```
-
-#### Methods
-
-- **`chunk(text: str) -> List[str]`**: Splits the text into topic-based segments.
-
-#### Example
-
-```python
-chunks = chunker.chunk("This is a sample text. It will be split into topic-based segments.")
-```
-
-### FixedLengthWordChunking Class
-
-Splits text into chunks of fixed length based on the number of words.
-
-#### Initialization
-
-```python
-from crawl4ai.chunking_strategy import FixedLengthWordChunking
-
-chunker = FixedLengthWordChunking(chunk_size=100)
-```
-
-#### Methods
-
-- **`chunk(text: str) -> List[str]`**: Splits the text into fixed-length word chunks.
-
-#### Example
-
-```python
-chunks = chunker.chunk("This is a sample text. It will be split into fixed-length word chunks.")
-```
-
-### SlidingWindowChunking Class
-
-Uses a sliding window approach to chunk text.
-
-#### Initialization
-
-```python
-from crawl4ai.chunking_strategy import SlidingWindowChunking
-
-chunker = SlidingWindowChunking(window_size=100, step=50)
-```
-
-#### Methods
-
-- **`chunk(text: str) -> List[str]`**: Splits the text using a sliding window approach.
-
-#### Example
-
-```python
-chunks = chunker.chunk("This is a sample text. It will be split using a sliding window approach.")
-```
-
-## ExtractionStrategy Classes
-
-The `ExtractionStrategy` classes define how meaningful content is extracted from the chunks.
-
-### NoExtractionStrategy Class
-
-Returns the entire HTML content without any modification.
-
-#### Initialization
-
-```python
-from crawl4ai.extraction_strategy import NoExtractionStrategy
-
-extractor = NoExtractionStrategy()
-```
-
-#### Methods
-
-- **`extract(url: str, html: str) -> str`**: Returns the HTML content.
-
-#### Example
-
-```python
-extracted_content = extractor.extract(url="https://www.example.com", html="<html>...</html>")
-```
-
-### LLMExtractionStrategy Class
-
-Uses a Language Model to extract meaningful blocks from HTML.
-
-#### Initialization
-
-```python
-from crawl4ai.extraction_strategy import LLMExtractionStrategy
-
-extractor = LLMExtractionStrategy(provider='openai', api_token='your_api_token', instruction='Extract only news about AI.')
-```
-
-#### Methods
-
-- **`extract(url: str, html: str) -> str`**: Extracts meaningful content using the LLM.
-
-#### Example
-
-```python
-extracted_content = extractor.extract(url="https://www.example.com", html="<html>...</html>")
-```
-
-### CosineStrategy Class
-
-Clusters text chunks based on cosine similarity.
-
-#### Initialization
-
-```python
-from crawl4ai.extraction_strategy import CosineStrategy
-
-extractor = CosineStrategy(semantic_filter="finance", word_count_threshold=10)
-```
-
-#### Methods
-
-- **`extract(url: str, html: str) -> str`**: Extracts clusters of text based on cosine similarity.
-
-#### Example
-
-```python
-extracted_content = extractor.extract(url="https://www.example.com", html="<html>...</html>")
-```
-
-### TopicExtractionStrategy Class
-
-Uses the TextTiling algorithm to segment HTML content into topics and extract keywords.
-
-#### Initialization
-
-```python
-from crawl4ai.extraction_strategy import TopicExtractionStrategy
-
-extractor = TopicExtractionStrategy(num_keywords=3)
-```
-
-#### Methods
-
-- **`extract(url: str, html: str) -> str`**: Extracts topic-based segments and keywords.
-
-#### Example
-
-```python
-extracted_content = extractor.extract(url="https://www.example.com", html="<html>...</html>")
-```
-
-## Parameters
-
-Here are the common parameters used across various classes and methods:
-
-- **`url`** (str): The URL to crawl.
-- **`html`** (str): The HTML content of the page.
-- **`user_agent`** (str): The user agent for the HTTP requests.
-- **`patterns`** (list): A list of regular expression patterns for chunking.
-- **`num_keywords`** (int): Number of keywords for topic extraction.
-- **`chunk_size`** (int): Number of words in each chunk.
-- **`window_size`** (int): Number of words in the sliding window.
-- **`step`** (int): Step size for the sliding window.
-- **`semantic_filter`** (str): Keywords for filtering relevant documents.
-- **`word_count_threshold`** (int): Minimum number of words per cluster.
-- **`max_dist`** (float): Maximum cophenetic distance for clustering.
-- **`linkage_method`** (str): Linkage method for hierarchical clustering.
-- **`top_k`** (int): Number of top categories to extract.
-- **`provider`** (
-
-str): Provider for language model completions.
-- **`api_token`** (str): API token for the provider.
-- **`instruction`** (str): Instruction to guide the LLM extraction.
-
-## Conclusion
-
-This detailed API documentation provides a thorough understanding of the classes, methods, and parameters in the Crawl4AI library. With this knowledge, you can effectively use the API to perform advanced web crawling and data extraction tasks.

docs/md/changelog.md

@@ -1,48 +0,0 @@
-# Changelog
-
-## [v0.2.72] - 2024-06-30
-
-This release brings exciting updates and improvements to our project! 🎉
-
-* 📚 **Documentation Updates**: Our documentation has been revamped to reflect the latest changes and additions.
-* 🚀 **New Modes in setup.py**: We've added support for three new modes in setup.py: default, torch, and transformers. This enhances the project's flexibility and usability.
-* 🐳 **Docker File Updates**: The Docker file has been updated to ensure seamless compatibility with the new modes and improvements.
-* 🕷️ **Temporary Solution for Headless Crawling**: We've implemented a temporary solution to overcome issues with crawling websites in headless mode.
-
-These changes aim to improve the overall user experience, provide more flexibility, and enhance the project's performance. We're thrilled to share these updates with you and look forward to continuing to evolve and improve our project!
-
-## [0.2.71] - 2024-06-26
-
-**Improved Error Handling and Performance** 🚧
-
-* 🚫 Refactored `crawler_strategy.py` to handle exceptions and provide better error messages, making it more robust and reliable.
-* 💻 Optimized the `get_content_of_website_optimized` function in `utils.py` for improved performance, reducing potential bottlenecks.
-* 💻 Updated `utils.py` with the latest changes, ensuring consistency and accuracy.
-* 🚫 Migrated to `ChromeDriverManager` to resolve Chrome driver download issues, providing a smoother user experience.
-
-These changes focus on refining the existing codebase, resulting in a more stable, efficient, and user-friendly experience. With these improvements, you can expect fewer errors and better performance in the crawler strategy and utility functions.
-
-## [0.2.71] - 2024-06-25
-### Fixed
-- Speed up twice the extraction function.
-
-## [0.2.6] - 2024-06-22
-### Fixed
-- Fix issue #19: Update Dockerfile to ensure compatibility across multiple platforms.
-
-## [0.2.5] - 2024-06-18
-### Added
-- Added five important hooks to the crawler:
-  - on_driver_created: Called when the driver is ready for initializations.
-  - before_get_url: Called right before Selenium fetches the URL.
-  - after_get_url: Called after Selenium fetches the URL.
-  - before_return_html: Called when the data is parsed and ready.
-  - on_user_agent_updated: Called when the user changes the user_agent, causing the driver to reinitialize.
-- Added an example in `quickstart.py` in the example folder under the docs.
-- Enhancement issue #24: Replaced inline HTML tags (e.g., DEL, INS, SUB, ABBR) with textual format for better context handling in LLM.
-- Maintaining the semantic context of inline tags (e.g., abbreviation, DEL, INS) for improved LLM-friendliness.
-- Updated Dockerfile to ensure compatibility across multiple platforms (Hopefully!).
-
-## [0.2.4] - 2024-06-17
-### Fixed
-- Fix issue #22: Use MD5 hash for caching HTML files to handle long URLs

docs/md/contact.md

@@ -1,25 +0,0 @@
-# Contact
-If you have any questions, suggestions, or feedback, please feel free to reach out to us:
-
-- GitHub: [unclecode](https://github.com/unclecode)
-- Twitter: [@unclecode](https://twitter.com/unclecode)
-- Website: [crawl4ai.com](https://crawl4ai.com)
-
-
-## Contributing 🤝
-
-We welcome contributions from the open-source community to help improve Crawl4AI and make it even more valuable for AI enthusiasts and developers. To contribute, please follow these steps:
-
-1. Fork the repository.
-2. Create a new branch for your feature or bug fix.
-3. Make your changes and commit them with descriptive messages.
-4. Push your changes to your forked repository.
-5. Submit a pull request to the main repository.
-
-For more information on contributing, please see our [contribution guidelines](https://github.com/unclecode/crawl4ai/blob/main/CONTRIBUTING.md).
-
-## License 📄
-
-Crawl4AI is released under the [Apache 2.0 License](https://github.com/unclecode/crawl4ai/blob/main/LICENSE).
-
-Let's work together to make the web more accessible and useful for AI applications! 💪🌐🤖

docs/md/demo.md

@@ -1,198 +0,0 @@
-# Interactive Demo for Crowler
-<div id="demo">
-    <form id="crawlForm" class="terminal-form">
-        <fieldset>
-            <legend>Enter URL and Options</legend>
-            <div class="form-group">
-                <label for="url">Enter URL:</label>
-                <input type="text" id="url" name="url" required>
-            </div>
-            <div class="form-group">
-                <label for="screenshot">Get Screenshot:</label>
-                <input type="checkbox" id="screenshot" name="screenshot">
-            </div>
-            <div class="form-group">
-                <button class="btn btn-default" type="submit">Submit</button>
-            </div>
-        </fieldset>
-    </form>
-
-    <div id="loading" class="loading-message">
-        <div class="terminal-alert terminal-alert-primary">Loading... Please wait.</div>
-    </div>
-
-    <section id="response" class="response-section">
-        <h2>Response</h2>
-        <div class="tabs">
-            <ul class="tab-list">
-                <li class="tab-item" onclick="showTab('markdown')">Markdown</li>
-                <li class="tab-item" onclick="showTab('cleanedHtml')">Cleaned HTML</li>
-                <li class="tab-item" onclick="showTab('media')">Media</li>
-                <li class="tab-item" onclick="showTab('extractedContent')">Extracted Content</li>
-                <li class="tab-item" onclick="showTab('screenshot')">Screenshot</li>
-                <li class="tab-item" onclick="showTab('pythonCode')">Python Code</li>
-            </ul>
-            <div class="tab-content" id="tab-markdown">
-                <header>
-                    <div>
-                        <button class="btn btn-default btn-ghost btn-sm" onclick="copyToClipboard('markdownContent')">Copy</button>
-                        <button class="btn btn-default btn-ghost btn-sm" onclick="downloadContent('markdownContent', 'markdown.md')">Download</button>
-                    </div>
-                </header>
-                <pre><code id="markdownContent" class="language-markdown hljs"></code></pre>
-            </div>
-
-            <div class="tab-content" id="tab-cleanedHtml" style="display: none;">
-                <header >
-                    <div>
-                        <button class="btn btn-default btn-ghost btn-sm" onclick="copyToClipboard('cleanedHtmlContent')">Copy</button>
-                        <button class="btn btn-default btn-ghost btn-sm" onclick="downloadContent('cleanedHtmlContent', 'cleaned.html')">Download</button>
-                    </div>
-                </header>
-                <pre><code id="cleanedHtmlContent" class="language-html hljs"></code></pre>
-            </div>
-
-            <div class="tab-content" id="tab-media" style="display: none;">
-                <header >
-                    <div>
-                        <button class="btn btn-default btn-ghost btn-sm" onclick="copyToClipboard('mediaContent')">Copy</button>
-                        <button class="btn btn-default btn-ghost btn-sm" onclick="downloadContent('mediaContent', 'media.json')">Download</button>
-                    </div>
-                </header>
-                <pre><code id="mediaContent" class="language-json hljs"></code></pre>
-            </div>
-
-            <div class="tab-content" id="tab-extractedContent" style="display: none;">
-                <header >
-                    <div>
-                        <button class="btn btn-default btn-ghost btn-sm" onclick="copyToClipboard('extractedContentContent')">Copy</button>
-                        <button class="btn btn-default btn-ghost btn-sm" onclick="downloadContent('extractedContentContent', 'extracted_content.json')">Download</button>
-                    </div>
-                </header>
-                <pre><code id="extractedContentContent" class="language-json hljs"></code></pre>
-            </div>
-
-            <div class="tab-content" id="tab-screenshot" style="display: none;">
-                <header >
-                    <div>
-                        <button class="btn btn-default btn-ghost btn-sm" onclick="downloadImage('screenshotContent', 'screenshot.png')">Download</button>
-                    </div>
-                </header>
-                <pre><img id="screenshotContent" /></pre>
-            </div>
-
-            <div class="tab-content" id="tab-pythonCode" style="display: none;">
-                <header >
-                    <div>
-                        <button class="btn btn-default btn-ghost btn-sm" onclick="copyToClipboard('pythonCode')">Copy</button>
-                        <button class="btn btn-default btn-ghost btn-sm" onclick="downloadContent('pythonCode', 'example.py')">Download</button>
-                    </div>
-                </header>
-                <pre><code id="pythonCode" class="language-python hljs"></code></pre>
-            </div>
-        </div>
-    </section>
-
-    <script>
-        function showTab(tabId) {
-            const tabs = document.querySelectorAll('.tab-content');
-            tabs.forEach(tab => tab.style.display = 'none');
-            document.getElementById(`tab-${tabId}`).style.display = 'block';
-        }
-
-        function redo(codeBlock, codeText){
-            codeBlock.classList.remove('hljs');
-            codeBlock.removeAttribute('data-highlighted');
-
-            // Set new code and re-highlight
-            codeBlock.textContent = codeText;
-            hljs.highlightBlock(codeBlock);
-        }
-
-        function copyToClipboard(elementId) {
-            const content = document.getElementById(elementId).textContent;
-            navigator.clipboard.writeText(content).then(() => {
-                alert('Copied to clipboard');
-            });
-        }
-
-        function downloadContent(elementId, filename) {
-            const content = document.getElementById(elementId).textContent;
-            const blob = new Blob([content], { type: 'text/plain' });
-            const url = window.URL.createObjectURL(blob);
-            const a = document.createElement('a');
-            a.style.display = 'none';
-            a.href = url;
-            a.download = filename;
-            document.body.appendChild(a);
-            a.click();
-            window.URL.revokeObjectURL(url);
-            document.body.removeChild(a);
-        }
-
-        function downloadImage(elementId, filename) {
-            const content = document.getElementById(elementId).src;
-            const a = document.createElement('a');
-            a.style.display = 'none';
-            a.href = content;
-            a.download = filename;
-            document.body.appendChild(a);
-            a.click();
-            document.body.removeChild(a);
-        }
-
-        document.getElementById('crawlForm').addEventListener('submit', function(event) {
-            event.preventDefault();
-            document.getElementById('loading').style.display = 'block';
-            document.getElementById('response').style.display = 'none';
-
-            const url = document.getElementById('url').value;
-            const screenshot = document.getElementById('screenshot').checked;
-            const data = {
-                urls: [url],
-                bypass_cache: false,
-                word_count_threshold: 5,
-                screenshot: screenshot
-            };
-
-            fetch('/crawl', {
-                method: 'POST',
-                headers: {
-                    'Content-Type': 'application/json'
-                },
-                body: JSON.stringify(data)
-            })
-            .then(response => response.json())
-            .then(data => {
-                data = data.results[0]; // Only one URL is requested
-                document.getElementById('loading').style.display = 'none';
-                document.getElementById('response').style.display = 'block';
-                redo(document.getElementById('markdownContent'), data.markdown);
-                redo(document.getElementById('cleanedHtmlContent'), data.cleaned_html);
-                redo(document.getElementById('mediaContent'), JSON.stringify(data.media, null, 2));
-                redo(document.getElementById('extractedContentContent'), data.extracted_content);
-                if (screenshot) {
-                    document.getElementById('screenshotContent').src = `data:image/png;base64,${data.screenshot}`;
-                }
-                const pythonCode = `
-from crawl4ai.web_crawler import WebCrawler
-
-crawler = WebCrawler()
-crawler.warmup()
-
-result = crawler.run(
-    url='${url}',
-    screenshot=${screenshot}
-)
-print(result)
-                `;
-                redo(document.getElementById('pythonCode'), pythonCode);
-            })
-            .catch(error => {
-                document.getElementById('loading').style.display = 'none';
-                document.getElementById('response').style.display = 'block';
-                document.getElementById('markdownContent').textContent = 'Error: ' + error;
-            });
-        });
-    </script>
-</div>

docs/md/examples/hooks_auth.md

@@ -1,96 +0,0 @@
-# Hooks & Auth
-
-Crawl4AI allows you to customize the behavior of the web crawler using hooks. Hooks are functions that are called at specific points in the crawling process, allowing you to modify the crawler's behavior or perform additional actions. This example demonstrates how to use various hooks to customize the crawling process.
-
-## Example: Using Crawler Hooks
-
-Let's see how we can customize the crawler using hooks! In this example, we'll:
-
-1. Maximize the browser window and log in to a website when the driver is created.
-2. Add a custom header before fetching the URL.
-3. Log the current URL after fetching it.
-4. Log the length of the HTML before returning it.
-
-### Hook Definitions
-
-```python
-def on_driver_created(driver):
-    print("[HOOK] on_driver_created")
-    # Example customization: maximize the window
-    driver.maximize_window()
-    
-    # Example customization: logging in to a hypothetical website
-    driver.get('https://example.com/login')
-    
-    from selenium.webdriver.support.ui import WebDriverWait
-    from selenium.webdriver.common.by import By
-    from selenium.webdriver.support import expected_conditions as EC
-    
-    WebDriverWait(driver, 10).until(
-        EC.presence_of_element_located((By.NAME, 'username'))
-    )
-    driver.find_element(By.NAME, 'username').send_keys('testuser')
-    driver.find_element(By.NAME, 'password').send_keys('password123')
-    driver.find_element(By.NAME, 'login').click()
-    WebDriverWait(driver, 10).until(
-        EC.presence_of_element_located((By.ID, 'welcome'))
-    )
-    # Add a custom cookie
-    driver.add_cookie({'name': 'test_cookie', 'value': 'cookie_value'})
-    return driver        
-    
-
-def before_get_url(driver):
-    print("[HOOK] before_get_url")
-    # Example customization: add a custom header
-    # Enable Network domain for sending headers
-    driver.execute_cdp_cmd('Network.enable', {})
-    # Add a custom header
-    driver.execute_cdp_cmd('Network.setExtraHTTPHeaders', {'headers': {'X-Test-Header': 'test'}})
-    return driver
-
-def after_get_url(driver):
-    print("[HOOK] after_get_url")
-    # Example customization: log the URL
-    print(driver.current_url)
-    return driver
-
-def before_return_html(driver, html):
-    print("[HOOK] before_return_html")
-    # Example customization: log the HTML
-    print(len(html))
-    return driver
-```
-
-### Using the Hooks with the WebCrawler
-
-```python
-print("\n🔗 [bold cyan]Using Crawler Hooks: Let's see how we can customize the crawler using hooks![/bold cyan]", True)
-crawler = WebCrawler(verbose=True)
-crawler.warmup()
-crawler.set_hook('on_driver_created', on_driver_created)
-crawler.set_hook('before_get_url', before_get_url)
-crawler.set_hook('after_get_url', after_get_url)
-crawler.set_hook('before_return_html', before_return_html)
-
-result = crawler.run(url="https://example.com")
-
-print("[LOG] 📦 [bold yellow]Crawler Hooks result:[/bold yellow]")
-print(result)
-```
-
-### Explanation
-
-- `on_driver_created`: This hook is called when the Selenium driver is created. In this example, it maximizes the window, logs in to a website, and adds a custom cookie.
-- `before_get_url`: This hook is called right before Selenium fetches the URL. In this example, it adds a custom HTTP header.
-- `after_get_url`: This hook is called after Selenium fetches the URL. In this example, it logs the current URL.
-- `before_return_html`: This hook is called before returning the HTML content. In this example, it logs the length of the HTML content.
-
-### Additional Ideas
-
-- **Add custom headers to requests**: You can add custom headers to the requests using the `before_get_url` hook.
-- **Perform safety checks**: Use the hooks to perform safety checks before the crawling process starts.
-- **Modify the HTML content**: Use the `before_return_html` hook to modify the HTML content before it is returned.
-- **Log additional information**: Use the hooks to log additional information for debugging or monitoring purposes.
-
-By using these hooks, you can customize the behavior of the crawler to suit your specific needs.

docs/md/examples/index.md

@@ -1,29 +0,0 @@
-# Examples
-
-Welcome to the examples section of Crawl4AI documentation! In this section, you will find practical examples demonstrating how to use Crawl4AI for various web crawling and data extraction tasks. Each example is designed to showcase different features and capabilities of the library.
-
-## Examples Index
-
-### [LLM Extraction](llm_extraction.md)
-
-This example demonstrates how to use Crawl4AI to extract information using Large Language Models (LLMs). You will learn how to configure the `LLMExtractionStrategy` to get structured data from web pages.
-
-### [JS Execution & CSS Filtering](js_execution_css_filtering.md)
-
-Learn how to execute custom JavaScript code and filter data using CSS selectors. This example shows how to perform complex web interactions and extract specific content from web pages.
-
-### [Hooks & Auth](hooks_auth.md)
-
-This example covers the use of custom hooks for authentication and other pre-crawling tasks. You will see how to set up hooks to modify headers, authenticate sessions, and perform other preparatory actions before crawling.
-
-### [Summarization](summarization.md)
-
-Discover how to use Crawl4AI to summarize web page content. This example demonstrates the summarization capabilities of the library, helping you extract concise information from lengthy web pages.
-
-### [Research Assistant](research_assistant.md)
-
-In this example, Crawl4AI is used as a research assistant to gather and organize information from multiple sources. You will learn how to use various extraction and chunking strategies to compile a comprehensive report.
-
----
-
-Each example includes detailed explanations and code snippets to help you understand and implement the features in your projects. Click on the links to explore each example and start making the most of Crawl4AI!

docs/md/examples/js_execution_css_filtering.md

@@ -1,44 +0,0 @@
-# JS Execution & CSS Filtering
-
-In this example, we'll demonstrate how to use Crawl4AI to execute JavaScript, filter data with CSS selectors, and use a cosine similarity strategy to extract relevant content. This approach is particularly useful when you need to interact with dynamic content on web pages, such as clicking "Load More" buttons.
-
-## Example: Extracting Structured Data
-
-```python
-# Import necessary modules
-from crawl4ai import WebCrawler
-from crawl4ai.chunking_strategy import *
-from crawl4ai.extraction_strategy import *
-from crawl4ai.crawler_strategy import *
-
-# Define the JavaScript code to click the "Load More" button
-js_code = ["""
-const loadMoreButton = Array.from(document.querySelectorAll('button')).find(button => button.textContent.includes('Load More'));
-loadMoreButton && loadMoreButton.click();
-"""]
-
-crawler = WebCrawler(verbose=True)
-crawler.warmup()
-# Run the crawler with keyword filtering and CSS selector
-result = crawler.run(
-    url="https://www.nbcnews.com/business",
-    js=js_code,
-    css_selector="p",
-    extraction_strategy=CosineStrategy(
-        semantic_filter="technology",
-    ),
-)
-
-# Display the extracted result
-print(result)
-```
-
-### Explanation
-
-1. **JavaScript Execution**: The `js_code` variable contains JavaScript code that simulates clicking a "Load More" button. This is useful for loading additional content dynamically.
-2. **CSS Selector**: The `css_selector="p"` parameter ensures that only paragraph (`<p>`) tags are extracted from the web page.
-3. **Extraction Strategy**: The `CosineStrategy` is used with a semantic filter for "technology" to extract relevant content based on cosine similarity.
-
-## Try It Yourself
-
-This example demonstrates the power and flexibility of Crawl4AI in handling complex web interactions and extracting meaningful data. You can customize the JavaScript code, CSS selectors, and extraction strategies to suit your specific requirements.

docs/md/examples/llm_extraction.md

@@ -1,90 +0,0 @@
-# LLM Extraction
-
-Crawl4AI allows you to use Language Models (LLMs) to extract structured data or relevant content from web pages. Below are two examples demonstrating how to use LLMExtractionStrategy for different purposes.
-
-## Example 1: Extract Structured Data
-
-In this example, we use the `LLMExtractionStrategy` to extract structured data (model names and their fees) from the OpenAI pricing page.
-
-```python
-import os
-import time
-from crawl4ai.web_crawler import WebCrawler
-from crawl4ai.chunking_strategy import *
-from crawl4ai.extraction_strategy import *
-from crawl4ai.crawler_strategy import *
-
-url = r'https://openai.com/api/pricing/'
-
-crawler = WebCrawler()
-crawler.warmup()
-
-from pydantic import BaseModel, Field
-
-class OpenAIModelFee(BaseModel):
-    model_name: str = Field(..., description="Name of the OpenAI model.")
-    input_fee: str = Field(..., description="Fee for input token for the OpenAI model.")
-    output_fee: str = Field(..., description="Fee for output token for the OpenAI model.")
-
-result = crawler.run(
-    url=url,
-    word_count_threshold=1,
-    extraction_strategy= LLMExtractionStrategy(
-        provider= "openai/gpt-4o", api_token = os.getenv('OPENAI_API_KEY'), 
-        schema=OpenAIModelFee.model_json_schema(),
-        extraction_type="schema",
-        instruction="From the crawled content, extract all mentioned model names along with their "\
-            "fees for input and output tokens. Make sure not to miss anything in the entire content. "\
-            'One extracted model JSON format should look like this: '\
-            '{ "model_name": "GPT-4", "input_fee": "US$10.00 / 1M tokens", "output_fee": "US$30.00 / 1M tokens" }'
-    ),
-    bypass_cache=True,
-)
-
-model_fees = json.loads(result.extracted_content)
-
-print(len(model_fees))
-
-with open(".data/data.json", "w") as f:
-    f.write(result.extracted_content)
-```
-
-## Example 2: Extract Relevant Content
-
-In this example, we instruct the LLM to extract only content related to technology from the NBC News business page.
-
-```python
-crawler = WebCrawler()
-crawler.warmup()
-
-result = crawler.run(
-        url="https://www.nbcnews.com/business",
-        extraction_strategy=LLMExtractionStrategy(
-            provider="openai/gpt-4o",
-            api_token=os.getenv('OPENAI_API_KEY'),
-            instruction="Extract only content related to technology"
-        ),
-    bypass_cache=True,
-    )
-
-model_fees = json.loads(result.extracted_content)
-
-print(len(model_fees))
-
-with open(".data/data.json", "w") as f:
-    f.write(result.extracted_content)
-```
-
-## Customizing LLM Provider
-
-Under the hood, Crawl4AI uses the `litellm` library, which allows you to use any LLM provider you want. Just pass the correct model name and API token.
-
-```python
-extraction_strategy=LLMExtractionStrategy(
-    provider="your_llm_provider/model_name",
-    api_token="your_api_token",
-    instruction="Your extraction instruction"
-)
-```
-
-This flexibility allows you to integrate with various LLM providers and tailor the extraction process to your specific needs.

docs/md/examples/research_assistant.md

@@ -1,248 +0,0 @@
-## Research Assistant Example
-
-This example demonstrates how to build a research assistant using `Chainlit` and `Crawl4AI`. The assistant will be capable of crawling web pages for information and answering questions based on the crawled content. Additionally, it integrates speech-to-text functionality for audio inputs.
-
-### Step-by-Step Guide
-
-1. **Install Required Packages**
-
-    Ensure you have the necessary packages installed. You need `chainlit`, `groq`, `requests`, and `openai`.
-
-    ```bash
-    pip install chainlit groq requests openai
-    ```
-
-2. **Import Libraries**
-
-    Import all the necessary modules and initialize the OpenAI client.
-
-    ```python
-    import os
-    import time
-    from openai import AsyncOpenAI
-    import chainlit as cl
-    import re
-    import requests
-    from io import BytesIO
-    from chainlit.element import ElementBased
-    from groq import Groq
-
-    from concurrent.futures import ThreadPoolExecutor
-
-    client = AsyncOpenAI(base_url="https://api.groq.com/openai/v1", api_key=os.getenv("GROQ_API_KEY"))
-
-    # Instrument the OpenAI client
-    cl.instrument_openai()
-    ```
-
-3. **Set Configuration**
-
-    Define the model settings for the assistant.
-
-    ```python
-    settings = {
-        "model": "llama3-8b-8192",
-        "temperature": 0.5,
-        "max_tokens": 500,
-        "top_p": 1,
-        "frequency_penalty": 0,
-        "presence_penalty": 0,
-    }
-    ```
-
-4. **Define Utility Functions**
-
-    - **Extract URLs from Text**: Use regex to find URLs in messages.
-
-        ```python
-        def extract_urls(text):
-            url_pattern = re.compile(r'(https?://\S+)')
-            return url_pattern.findall(text)
-        ```
-
-    - **Crawl URL**: Send a request to `Crawl4AI` to fetch the content of a URL.
-
-        ```python
-        def crawl_url(url):
-            data = {
-                "urls": [url],
-                "include_raw_html": True,
-                "word_count_threshold": 10,
-                "extraction_strategy": "NoExtractionStrategy",
-                "chunking_strategy": "RegexChunking"
-            }
-            response = requests.post("https://crawl4ai.com/crawl", json=data)
-            response_data = response.json()
-            response_data = response_data['results'][0]
-            return response_data['markdown']
-        ```
-
-5. **Initialize Chat Start Event**
-
-    Set up the initial chat message and user session.
-
-    ```python
-    @cl.on_chat_start
-    async def on_chat_start():
-        cl.user_session.set("session", {
-            "history": [],
-            "context": {}
-        })  
-        await cl.Message(
-            content="Welcome to the chat! How can I assist you today?"
-        ).send()
-    ```
-
-6. **Handle Incoming Messages**
-
-    Process user messages, extract URLs, and crawl them concurrently. Update the chat history and system message.
-
-    ```python
-    @cl.on_message
-    async def on_message(message: cl.Message):
-        user_session = cl.user_session.get("session")
-
-        # Extract URLs from the user's message
-        urls = extract_urls(message.content)
-
-        futures = []
-        with ThreadPoolExecutor() as executor:
-            for url in urls:
-                futures.append(executor.submit(crawl_url, url))
-
-        results = [future.result() for future in futures]
-
-        for url, result in zip(urls, results):
-            ref_number = f"REF_{len(user_session['context']) + 1}"
-            user_session["context"][ref_number] = {
-                "url": url,
-                "content": result
-            }    
-
-        user_session["history"].append({
-            "role": "user",
-            "content": message.content
-        })
-
-        # Create a system message that includes the context
-        context_messages = [
-            f'<appendix ref="{ref}">\n{data["content"]}\n</appendix>'
-            for ref, data in user_session["context"].items()
-        ]
-        if context_messages:
-            system_message = {
-                "role": "system",
-                "content": (
-                    "You are a helpful bot. Use the following context for answering questions. "
-                    "Refer to the sources using the REF number in square brackets, e.g., [1], only if the source is given in the appendices below.\n\n"
-                    "If the question requires any information from the provided appendices or context, refer to the sources. "
-                    "If not, there is no need to add a references section. "
-                    "At the end of your response, provide a reference section listing the URLs and their REF numbers only if sources from the appendices were used.\n\n"
-                    "\n\n".join(context_messages)
-                )
-            }
-        else:
-            system_message = {
-                "role": "system",
-                "content": "You are a helpful assistant."
-            }
-
-        msg = cl.Message(content="")
-        await msg.send()
-
-        # Get response from the LLM
-        stream = await client.chat.completions.create(
-            messages=[
-                system_message,
-                *user_session["history"]
-            ],
-            stream=True,
-            **settings
-        )
-
-        assistant_response = ""
-        async for part in stream:
-            if token := part.choices[0].delta.content:
-                assistant_response += token
-                await msg.stream_token(token)
-
-        # Add assistant message to the history
-        user_session["history"].append({
-            "role": "assistant",
-            "content": assistant_response
-        })
-        await msg.update()
-
-        # Append the reference section to the assistant's response
-        reference_section = "\n\nReferences:\n"
-        for ref, data in user_session["context"].items():
-            reference_section += f"[{ref.split('_')[1]}]: {data['url']}\n"
-
-        msg.content += reference_section
-        await msg.update()
-    ```
-
-7. **Handle Audio Input**
-
-    Capture and transcribe audio input. Store the audio buffer and transcribe it when the audio ends.
-
-    ```python
-    @cl.on_audio_chunk
-    async def on_audio_chunk(chunk: cl.AudioChunk):
-        if chunk.isStart:
-            buffer = BytesIO()
-            buffer.name = f"input_audio.{chunk.mimeType.split('/')[1]}"
-            cl.user_session.set("audio_buffer", buffer)
-            cl.user_session.set("audio_mime_type", chunk.mimeType)
-
-        cl.user_session.get("audio_buffer").write(chunk.data)
-
-    @cl.step(type="tool")
-    async def speech_to_text(audio_file):
-        cli = Groq()
-        response = await client.audio.transcriptions.create(
-            model="whisper-large-v3", file=audio_file
-        )
-        return response.text
-
-    @cl.on_audio_end
-    async def on_audio_end(elements: list[ElementBased]):
-        audio_buffer: BytesIO = cl.user_session.get("audio_buffer")
-        audio_buffer.seek(0)
-        audio_file = audio_buffer.read()
-        audio_mime_type: str = cl.user_session.get("audio_mime_type")
-        
-        start_time = time.time()
-        transcription = await speech_to_text((audio_buffer.name, audio_file, audio_mime_type))
-        end_time = time.time()
-        print(f"Transcription took {end_time - start_time} seconds")
-        
-        user_msg = cl.Message(
-            author="You", 
-            type="user_message",
-            content=transcription
-        )
-        await user_msg.send()
-        await on_message(user_msg)
-    ```
-
-8. **Run the Chat Application**
-
-    Start the Chainlit application.
-
-    ```python
-    if __name__ == "__main__":
-        from chainlit.cli import run_chainlit
-        run_chainlit(__file__)
-    ```
-
-### Explanation
-
-- **Libraries and Configuration**: Import necessary libraries and configure the OpenAI client.
-- **Utility Functions**: Define functions to extract URLs and crawl them.
-- **Chat Start Event**: Initialize chat session and welcome message.
-- **Message Handling**: Extract URLs, crawl them concurrently, and update chat history and context.
-- **Audio Handling**: Capture, buffer, and transcribe audio input, then process the transcription as text.
-- **Running the Application**: Start the Chainlit server to interact with the assistant.
-
-This example showcases how to create an interactive research assistant that can fetch, process, and summarize web content, along with handling audio inputs for a seamless user experience.

docs/md/examples/summarization.md

@@ -1,108 +0,0 @@
-## Summarization Example
-
-This example demonstrates how to use `Crawl4AI` to extract a summary from a web page. The goal is to obtain the title, a detailed summary, a brief summary, and a list of keywords from the given page.
-
-### Step-by-Step Guide
-
-1. **Import Necessary Modules**
-
-    First, import the necessary modules and classes.
-
-    ```python
-    import os
-    import time
-    import json
-    from crawl4ai.web_crawler import WebCrawler
-    from crawl4ai.chunking_strategy import *
-    from crawl4ai.extraction_strategy import *
-    from crawl4ai.crawler_strategy import *
-    from pydantic import BaseModel, Field
-    ```
-
-2. **Define the URL to be Crawled**
-
-    Set the URL of the web page you want to summarize.
-
-    ```python
-    url = r'https://marketplace.visualstudio.com/items?itemName=Unclecode.groqopilot'
-    ```
-
-3. **Initialize the WebCrawler**
-
-    Create an instance of the `WebCrawler` and call the `warmup` method.
-
-    ```python
-    crawler = WebCrawler()
-    crawler.warmup()
-    ```
-
-4. **Define the Data Model**
-
-    Use Pydantic to define the structure of the extracted data.
-
-    ```python
-    class PageSummary(BaseModel):
-        title: str = Field(..., description="Title of the page.")
-        summary: str = Field(..., description="Summary of the page.")
-        brief_summary: str = Field(..., description="Brief summary of the page.")
-        keywords: list = Field(..., description="Keywords assigned to the page.")
-    ```
-
-5. **Run the Crawler**
-
-    Set up and run the crawler with the `LLMExtractionStrategy`. Provide the necessary parameters, including the schema for the extracted data and the instruction for the LLM.
-
-    ```python
-    result = crawler.run(
-        url=url,
-        word_count_threshold=1,
-        extraction_strategy=LLMExtractionStrategy(
-            provider="openai/gpt-4o", 
-            api_token=os.getenv('OPENAI_API_KEY'), 
-            schema=PageSummary.model_json_schema(),
-            extraction_type="schema",
-            apply_chunking=False,
-            instruction=(
-                "From the crawled content, extract the following details: "
-                "1. Title of the page "
-                "2. Summary of the page, which is a detailed summary "
-                "3. Brief summary of the page, which is a paragraph text "
-                "4. Keywords assigned to the page, which is a list of keywords. "
-                'The extracted JSON format should look like this: '
-                '{ "title": "Page Title", "summary": "Detailed summary of the page.", '
-                '"brief_summary": "Brief summary in a paragraph.", "keywords": ["keyword1", "keyword2", "keyword3"] }'
-            )
-        ),
-        bypass_cache=True,
-    )
-    ```
-
-6. **Process the Extracted Data**
-
-    Load the extracted content into a JSON object and print it.
-
-    ```python
-    page_summary = json.loads(result.extracted_content)
-    print(page_summary)
-    ```
-
-7. **Save the Extracted Data**
-
-    Save the extracted data to a file for further use.
-
-    ```python
-    with open(".data/page_summary.json", "w") as f:
-        f.write(result.extracted_content)
-    ```
-
-### Explanation
-
-- **Importing Modules**: Import the necessary modules, including `WebCrawler` and `LLMExtractionStrategy` from `Crawl4AI`.
-- **URL Definition**: Set the URL of the web page you want to crawl and summarize.
-- **WebCrawler Initialization**: Create an instance of `WebCrawler` and call the `warmup` method to prepare the crawler.
-- **Data Model Definition**: Define the structure of the data you want to extract using Pydantic's `BaseModel`.
-- **Crawler Execution**: Run the crawler with the `LLMExtractionStrategy`, providing the schema and detailed instructions for the extraction process.
-- **Data Processing**: Load the extracted content into a JSON object and print it to verify the results.
-- **Data Saving**: Save the extracted data to a file for further use.
-
-This example demonstrates how to harness the power of `Crawl4AI` to perform advanced web crawling and data extraction tasks with minimal code.

docs/md/full_details/advanced_features.md

@@ -1,138 +0,0 @@
-# Advanced Features
-
-Crawl4AI offers a range of advanced features that allow you to fine-tune your web crawling and data extraction process. This section will cover some of these advanced features, including taking screenshots, extracting media and links, customizing the user agent, using custom hooks, and leveraging CSS selectors.
-
-## Taking Screenshots 📸
-
-One of the cool features of Crawl4AI is the ability to take screenshots of the web pages you're crawling. This can be particularly useful for visual verification or for capturing the state of dynamic content.
-
-Here's how you can take a screenshot:
-
-```python
-from crawl4ai import WebCrawler
-import base64
-
-# Create the WebCrawler instance
-crawler = WebCrawler()
-crawler.warmup()
-
-# Run the crawler with the screenshot parameter
-result = crawler.run(url="https://www.nbcnews.com/business", screenshot=True)
-
-# Save the screenshot to a file
-with open("screenshot.png", "wb") as f:
-    f.write(base64.b64decode(result.screenshot))
-
-print("Screenshot saved to 'screenshot.png'!")
-```
-
-In this example, we create a `WebCrawler` instance, warm it up, and then run it with the `screenshot` parameter set to `True`. The screenshot is saved as a base64 encoded string in the result, which we then decode and save as a PNG file.
-
-## Extracting Media and Links 🎨🔗
-
-Crawl4AI can extract all media tags (images, audio, and video) and links (both internal and external) from a web page. This feature is useful for collecting multimedia content or analyzing link structures.
-
-Here's an example:
-
-```python
-from crawl4ai import WebCrawler
-
-# Create the WebCrawler instance
-crawler = WebCrawler()
-crawler.warmup()
-
-# Run the crawler
-result = crawler.run(url="https://www.nbcnews.com/business")
-
-print("Extracted media:", result.media)
-print("Extracted links:", result.links)
-```
-
-In this example, the `result` object contains dictionaries for media and links, which you can access and use as needed.
-
-## Customizing the User Agent 🕵️‍♂️
-
-Crawl4AI allows you to set a custom user agent for your HTTP requests. This can help you avoid detection by web servers or simulate different browsing environments.
-
-Here's how to set a custom user agent:
-
-```python
-from crawl4ai import WebCrawler
-
-# Create the WebCrawler instance
-crawler = WebCrawler()
-crawler.warmup()
-
-# Run the crawler with a custom user agent
-result = crawler.run(url="https://www.nbcnews.com/business", user_agent="Mozilla/5.0 (compatible; MyCrawler/1.0)")
-
-print("Crawl result:", result)
-```
-
-In this example, we specify a custom user agent string when running the crawler.
-
-## Using Custom Hooks 🪝
-
-Hooks are a powerful feature in Crawl4AI that allow you to customize the crawling process at various stages. You can define hooks for actions such as driver initialization, before and after URL fetching, and before returning the HTML.
-
-Here's an example of using hooks:
-
-```python
-from crawl4ai import WebCrawler
-from selenium.webdriver.common.by import By
-from selenium.webdriver.support.ui import WebDriverWait
-from selenium.webdriver.support import expected_conditions as EC
-
-# Define the hooks
-def on_driver_created(driver):
-    driver.maximize_window()
-    driver.get('https://example.com/login')
-    WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.NAME, 'username'))).send_keys('testuser')
-    driver.find_element(By.NAME, 'password').send_keys('password123')
-    driver.find_element(By.NAME, 'login').click()
-    return driver
-
-def before_get_url(driver):
-    driver.execute_cdp_cmd('Network.setExtraHTTPHeaders', {'headers': {'X-Test-Header': 'test'}})
-    return driver
-
-# Create the WebCrawler instance
-crawler = WebCrawler()
-crawler.warmup()
-
-# Set the hooks
-crawler.set_hook('on_driver_created', on_driver_created)
-crawler.set_hook('before_get_url', before_get_url)
-
-# Run the crawler
-result = crawler.run(url="https://example.com")
-
-print("Crawl result:", result)
-```
-
-In this example, we define hooks to handle driver initialization and custom headers before fetching the URL.
-
-## Using CSS Selectors 🎯
-
-CSS selectors allow you to target specific elements on a web page for extraction. This can be useful for scraping structured content, such as articles or product details.
-
-Here's an example of using a CSS selector:
-
-```python
-from crawl4ai import WebCrawler
-
-# Create the WebCrawler instance
-crawler = WebCrawler()
-crawler.warmup()
-
-# Run the crawler with a CSS selector to extract only H2 tags
-result = crawler.run(url="https://www.nbcnews.com/business", css_selector="h2")
-
-print("Extracted H2 tags:", result.extracted_content)
-```
-
-In this example, we use the `css_selector` parameter to extract only the H2 tags from the web page.
-
----
-
-With these advanced features, you can leverage Crawl4AI to perform sophisticated web crawling and data extraction tasks. Whether you need to take screenshots, extract specific elements, customize the crawling process, or set custom headers, Crawl4AI provides the flexibility and power to meet your needs. Happy crawling! 🕷️🚀

docs/md/full_details/crawl_request_parameters.md

@@ -1,130 +0,0 @@
-# Crawl Request Parameters
-
-The `run` function in Crawl4AI is designed to be highly configurable, allowing you to customize the crawling and extraction process to suit your needs. Below are the parameters you can use with the `run` function, along with their descriptions, possible values, and examples.
-
-## Parameters
-
-### url (str)
-**Description:** The URL of the webpage to crawl.
-**Required:** Yes
-**Example:**
-```python
-url = "https://www.nbcnews.com/business"
-```
-
-### word_count_threshold (int)
-**Description:** The minimum number of words a block must contain to be considered meaningful. The default value is `5`.
-**Required:** No
-**Default Value:** `5`
-**Example:**
-```python
-word_count_threshold = 10
-```
-
-### extraction_strategy (ExtractionStrategy)
-**Description:** The strategy to use for extracting content from the HTML. It must be an instance of `ExtractionStrategy`. If not provided, the default is `NoExtractionStrategy`.
-**Required:** No
-**Default Value:** `NoExtractionStrategy()`
-**Example:**
-```python
-extraction_strategy = CosineStrategy(semantic_filter="finance")
-```
-
-### chunking_strategy (ChunkingStrategy)
-**Description:** The strategy to use for chunking the text before processing. It must be an instance of `ChunkingStrategy`. The default value is `RegexChunking()`.
-**Required:** No
-**Default Value:** `RegexChunking()`
-**Example:**
-```python
-chunking_strategy = NlpSentenceChunking()
-```
-
-### bypass_cache (bool)
-**Description:** Whether to force a fresh crawl even if the URL has been previously crawled. The default value is `False`.
-**Required:** No
-**Default Value:** `False`
-**Example:**
-```python
-bypass_cache = True
-```
-
-### css_selector (str)
-**Description:** The CSS selector to target specific parts of the HTML for extraction. If not provided, the entire HTML will be processed.
-**Required:** No
-**Default Value:** `None`
-**Example:**
-```python
-css_selector = "div.article-content"
-```
-
-### screenshot (bool)
-**Description:** Whether to take screenshots of the page. The default value is `False`.
-**Required:** No
-**Default Value:** `False`
-**Example:**
-```python
-screenshot = True
-```
-
-### user_agent (str)
-**Description:** The user agent to use for the HTTP requests. If not provided, a default user agent will be used.
-**Required:** No
-**Default Value:** `None`
-**Example:**
-```python
-user_agent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3"
-```
-
-### verbose (bool)
-**Description:** Whether to enable verbose logging. The default value is `True`.
-**Required:** No
-**Default Value:** `True`
-**Example:**
-```python
-verbose = True
-```
-
-### **kwargs
-Additional keyword arguments that can be passed to customize the crawling process further. Some notable options include:
-
-- **only_text (bool):** Whether to extract only text content, excluding HTML tags. Default is `False`.
-
-**Example:**
-```python
-result = crawler.run(
-    url="https://www.nbcnews.com/business",
-    css_selector="p",
-    only_text=True
-)
-```
-
-## Example Usage
-
-Here's an example of how to use the `run` function with various parameters:
-
-```python
-from crawl4ai import WebCrawler
-from crawl4ai.extraction_strategy import CosineStrategy
-from crawl4ai.chunking_strategy import NlpSentenceChunking
-
-# Create the WebCrawler instance 
-crawler = WebCrawler() 
-
-# Run the crawler with custom parameters
-result = crawler.run(
-    url="https://www.nbcnews.com/business",
-    word_count_threshold=10,
-    extraction_strategy=CosineStrategy(semantic_filter="finance"),
-    chunking_strategy=NlpSentenceChunking(),
-    bypass_cache=True,
-    css_selector="div.article-content",
-    screenshot=True,
-    user_agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3",
-    verbose=True,
-    only_text=True
-)
-
-print(result)
-```
-
-This example demonstrates how to configure various parameters to customize the crawling and extraction process using Crawl4AI.

docs/md/full_details/crawl_result_class.md

@@ -1,120 +0,0 @@
-# Crawl Result
-
-The `CrawlResult` class is the heart of Crawl4AI's output, encapsulating all the data extracted from a crawling session. This class contains various fields that store the results of the web crawling and extraction process. Let's break down each field and see what it holds. 🎉
-
-## Class Definition
-
-```python
-class CrawlResult(BaseModel):
-    url: str
-    html: str
-    success: bool
-    cleaned_html: Optional[str] = None
-    media: Dict[str, List[Dict]] = {}
-    links: Dict[str, List[Dict]] = {}
-    screenshot: Optional[str] = None
-    markdown: Optional[str] = None
-    extracted_content: Optional[str] = None
-    metadata: Optional[dict] = None
-    error_message: Optional[str] = None
-```
-
-## Fields Explanation
-
-### `url: str`
-The URL that was crawled. This field simply stores the URL of the web page that was processed.
-
-### `html: str`
-The raw HTML content of the web page. This is the unprocessed HTML source as retrieved by the crawler.
-
-### `success: bool`
-A flag indicating whether the crawling and extraction were successful. If any error occurs during the process, this will be `False`.
-
-### `cleaned_html: Optional[str]`
-The cleaned HTML content of the web page. This field holds the HTML after removing unwanted tags like `<script>`, `<style>`, and others that do not contribute to the useful content.
-
-### `media: Dict[str, List[Dict]]`
-A dictionary containing lists of extracted media elements from the web page. The media elements are categorized into images, videos, and audios. Here’s how they are structured:
-
-- **Images**: Each image is represented as a dictionary with `src` (source URL) and `alt` (alternate text).
-- **Videos**: Each video is represented similarly with `src` and `alt`.
-- **Audios**: Each audio is represented with `src` and `alt`.
-
-```python
-media = {
-    'images': [
-        {'src': 'image_url1', 'alt': 'description1', "type": "image"},
-        {'src': 'image_url2', 'alt': 'description2', "type": "image"}
-    ],
-    'videos': [
-        {'src': 'video_url1', 'alt': 'description1', "type": "video"}
-    ],
-    'audios': [
-        {'src': 'audio_url1', 'alt': 'description1', "type": "audio"}
-    ]
-}
-```
-
-### `links: Dict[str, List[Dict]]`
-A dictionary containing lists of internal and external links extracted from the web page. Each link is represented as a dictionary with `href` (URL) and `text` (link text).
-
-- **Internal Links**: Links pointing to the same domain.
-- **External Links**: Links pointing to different domains.
-
-```python
-links = {
-    'internal': [
-        {'href': 'internal_link1', 'text': 'link_text1'},
-        {'href': 'internal_link2', 'text': 'link_text2'}
-    ],
-    'external': [
-        {'href': 'external_link1', 'text': 'link_text1'}
-    ]
-}
-```
-
-### `screenshot: Optional[str]`
-A base64-encoded screenshot of the web page. This field stores the screenshot data if the crawling was configured to take a screenshot.
-
-### `markdown: Optional[str]`
-The content of the web page converted to Markdown format. This is useful for generating clean, readable text that retains the structure of the original HTML.
-
-### `extracted_content: Optional[str]`
-The content extracted based on the specified extraction strategy. This field holds the meaningful content blocks extracted from the web page, ready for your AI and data processing needs.
-
-### `metadata: Optional[dict]`
-A dictionary containing metadata extracted from the web page, such as title, description, keywords, and other meta tags.
-
-### `error_message: Optional[str]`
-If an error occurs during crawling, this field will contain the error message, helping you debug and understand what went wrong. 🚨
-
-## Example Usage
-
-Here's a quick example to illustrate how you might use the `CrawlResult` in your code:
-
-```python
-from crawl4ai import WebCrawler
-
-# Create the WebCrawler instance
-crawler = WebCrawler()
-
-# Run the crawler on a URL
-result = crawler.run(url="https://www.example.com")
-
-# Check if the crawl was successful
-if result.success:
-    print("Crawl succeeded!")
-    print("URL:", result.url)
-    print("HTML:", result.html[:100])  # Print the first 100 characters of the HTML
-    print("Cleaned HTML:", result.cleaned_html[:100])
-    print("Media:", result.media)
-    print("Links:", result.links)
-    print("Screenshot:", result.screenshot)
-    print("Markdown:", result.markdown[:100])
-    print("Extracted Content:", result.extracted_content)
-    print("Metadata:", result.metadata)
-else:
-    print("Crawl failed with error:", result.error_message)
-```
-
-With this setup, you can easily access all the valuable data extracted from the web page and integrate it into your applications. Happy crawling! 🕷️🤖

docs/md/full_details/extraction_strategies.md

@@ -1,116 +0,0 @@
-## Extraction Strategies 🧠
-
-Crawl4AI offers powerful extraction strategies to derive meaningful information from web content. Let's dive into two of the most important strategies: `CosineStrategy` and `LLMExtractionStrategy`.
-
-### CosineStrategy
-
-`CosineStrategy` uses hierarchical clustering based on cosine similarity to group text chunks into meaningful clusters. This method converts each chunk into its embedding and then clusters them to form semantical chunks.
-
-#### When to Use
-- Ideal for fast, accurate semantic segmentation of text.
-- Perfect for scenarios where LLMs might be overkill or too slow.
-- Suitable for narrowing down content based on specific queries or keywords.
-
-#### Parameters
-- `semantic_filter` (str, optional): Keywords for filtering relevant documents before clustering. Documents are filtered based on their cosine similarity to the keyword filter embedding. Default is `None`.
-- `word_count_threshold` (int, optional): Minimum number of words per cluster. Default is `20`.
-- `max_dist` (float, optional): Maximum cophenetic distance on the dendrogram to form clusters. Default is `0.2`.
-- `linkage_method` (str, optional): Linkage method for hierarchical clustering. Default is `'ward'`.
-- `top_k` (int, optional): Number of top categories to extract. Default is `3`.
-- `model_name` (str, optional): Model name for embedding generation. Default is `'BAAI/bge-small-en-v1.5'`.
-
-#### Example
-```python
-from crawl4ai.extraction_strategy import CosineStrategy
-from crawl4ai import WebCrawler
-
-crawler = WebCrawler()
-crawler.warmup()
-
-# Define extraction strategy
-strategy = CosineStrategy(
-    semantic_filter="finance economy stock market",
-    word_count_threshold=10,
-    max_dist=0.2,
-    linkage_method='ward',
-    top_k=3,
-    model_name='BAAI/bge-small-en-v1.5'
-)
-
-# Sample URL
-url = "https://www.nbcnews.com/business"
-
-# Run the crawler with the extraction strategy
-result = crawler.run(url=url, extraction_strategy=strategy)
-print(result.extracted_content)
-```
-
-### LLMExtractionStrategy
-
-`LLMExtractionStrategy` leverages a Language Model (LLM) to extract meaningful content from HTML. This strategy uses an external provider for LLM completions to perform extraction based on instructions.
-
-#### When to Use
-- Suitable for complex extraction tasks requiring nuanced understanding.
-- Ideal for scenarios where detailed instructions can guide the extraction process.
-- Perfect for extracting specific types of information or content with precise guidelines.
-
-#### Parameters
-- `provider` (str, optional): Provider for language model completions (e.g., openai/gpt-4). Default is `DEFAULT_PROVIDER`.
-- `api_token` (str, optional): API token for the provider. If not provided, it will try to load from the environment variable `OPENAI_API_KEY`.
-- `instruction` (str, optional): Instructions to guide the LLM on how to perform the extraction. Default is `None`.
-
-#### Example Without Instructions
-```python
-from crawl4ai.extraction_strategy import LLMExtractionStrategy
-from crawl4ai import WebCrawler
-
-crawler = WebCrawler()
-crawler.warmup()
-
-# Define extraction strategy without instructions
-strategy = LLMExtractionStrategy(
-    provider='openai',
-    api_token='your_api_token'
-)
-
-# Sample URL
-url = "https://www.nbcnews.com/business"
-
-# Run the crawler with the extraction strategy
-result = crawler.run(url=url, extraction_strategy=strategy)
-print(result.extracted_content)
-```
-
-#### Example With Instructions
-```python
-from crawl4ai.extraction_strategy import LLMExtractionStrategy
-from crawl4ai import WebCrawler
-
-crawler = WebCrawler()
-crawler.warmup()
-
-# Define extraction strategy with instructions
-strategy = LLMExtractionStrategy(
-    provider='openai',
-    api_token='your_api_token',
-    instruction="Extract only financial news and summarize key points."
-)
-
-# Sample URL
-url = "https://www.nbcnews.com/business"
-
-# Run the crawler with the extraction strategy
-result = crawler.run(url=url, extraction_strategy=strategy)
-print(result.extracted_content)
-```
-
-#### Use Cases for LLMExtractionStrategy
-- Extracting specific data types from structured or semi-structured content.
-- Generating summaries, extracting key information, or transforming content into different formats.
-- Performing detailed extractions based on custom instructions.
-
-For more detailed examples, please refer to the [Examples section](../examples/index.md) of the documentation.
-
----
-
-By choosing the right extraction strategy, you can effectively extract the most relevant and useful information from web content. Whether you need fast, accurate semantic segmentation with `CosineStrategy` or nuanced, instruction-based extraction with `LLMExtractionStrategy`, Crawl4AI has you covered. Happy extracting! 🕵️‍♂️✨

docs/md/index.md

@@ -1,101 +0,0 @@
-# Crawl4AI v0.2.72
-
-Welcome to the official documentation for Crawl4AI! 🕷️🤖 Crawl4AI is an open-source Python library designed to simplify web crawling and extract useful information from web pages. This documentation will guide you through the features, usage, and customization of Crawl4AI.
-
-
-## Try the [Demo](demo.md)
-
-Just try it now and crawl different pages to see how it works. You can set the links, see the structures of the output, and also view the Python sample code on how to run it. The old demo is available at [/old_demo](/old) where you can see more details.
-
-## Introduction
-
-Crawl4AI has one clear task: to make crawling and data extraction from web pages easy and efficient, especially for large language models (LLMs) and AI applications. Whether you are using it as a REST API or a Python library, Crawl4AI offers a robust and flexible solution.
-
-## Quick Start
-
-Here's a quick example to show you how easy it is to use Crawl4AI:
-
-```python
-from crawl4ai import WebCrawler
-
-# Create an instance of WebCrawler
-crawler = WebCrawler()
-
-# Warm up the crawler (load necessary models)
-crawler.warmup()
-
-# Run the crawler on a URL
-result = crawler.run(url="https://www.nbcnews.com/business")
-
-# Print the extracted content
-print(result.extracted_content)
-```
-
-### Explanation
-
-1. **Importing the Library**: We start by importing the `WebCrawler` class from the `crawl4ai` library.
-2. **Creating an Instance**: An instance of `WebCrawler` is created.
-3. **Warming Up**: The `warmup()` method prepares the crawler by loading necessary models and settings.
-4. **Running the Crawler**: The `run()` method is used to crawl the specified URL and extract meaningful content.
-5. **Printing the Result**: The extracted content is printed, showcasing the data extracted from the web page.
-
-## Documentation Structure
-
-This documentation is organized into several sections to help you navigate and find the information you need quickly:
-
-### [Home](index.md)
-
-An introduction to Crawl4AI, including a quick start guide and an overview of the documentation structure.
-
-### [Installation](installation.md)
-
-Instructions on how to install Crawl4AI and its dependencies.
-
-### [Introduction](introduction.md)
-
-A detailed introduction to Crawl4AI, its features, and how it can be used for various web crawling and data extraction tasks.
-
-### [Quick Start](quickstart.md)
-
-A step-by-step guide to get you up and running with Crawl4AI, including installation instructions and basic usage examples.
-
-### [Examples](examples/index.md)
-
-This section contains practical examples demonstrating different use cases of Crawl4AI:
-
-- [LLM Extraction](examples/llm_extraction.md)
-- [JS Execution & CSS Filtering](examples/js_execution_css_filtering.md)
-- [Hooks & Auth](examples/hooks_auth.md)
-- [Summarization](examples/summarization.md)
-- [Research Assistant](examples/research_assistant.md)
-
-### [Full Details of Using Crawler](full_details/crawl_request_parameters.md)
-
-Comprehensive details on using the crawler, including:
-
-- [Crawl Request Parameters](full_details/crawl_request_parameters.md)
-- [Crawl Result Class](full_details/crawl_result_class.md)
-- [Advanced Features](full_details/advanced_features.md)
-- [Chunking Strategies](full_details/chunking_strategies.md)
-- [Extraction Strategies](full_details/extraction_strategies.md)
-
-### [API Reference](api/core_classes_and_functions.md)
-
-Detailed documentation of the API, covering:
-
-- [Core Classes and Functions](api/core_classes_and_functions.md)
-- [Detailed API Documentation](api/detailed_api_documentation.md)
-
-### [Change Log](changelog.md)
-
-A log of all changes, updates, and improvements made to Crawl4AI.
-
-### [Contact](contact.md)
-
-Information on how to get in touch with the developers, report issues, and contribute to the project.
-
-## Get Started
-
-To get started with Crawl4AI, follow the quick start guide above or explore the detailed sections of this documentation. Whether you are a beginner or an advanced user, Crawl4AI has something to offer to make your web crawling and data extraction tasks easier and more efficient.
-
-Happy Crawling! 🕸️🚀

docs/md/installation.md

@@ -1,73 +0,0 @@
-# Installation 💻
-
-There are three ways to use Crawl4AI:
-1. As a library (Recommended)
-2. As a local server (Docker) or using the REST API
-3. As a Google Colab notebook. [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1wz8u30rvbq6Scodye9AGCw8Qg_Z8QGsk)
-
-## Library Installation
-
-Crawl4AI offers flexible installation options to suit various use cases. Choose the option that best fits your needs:
-
-- **Default Installation** (Basic functionality):
-```bash
-virtualenv venv
-source venv/bin/activate
-pip install "crawl4ai @ git+https://github.com/unclecode/crawl4ai.git"
-```
-Use this for basic web crawling and scraping tasks.
-
-- **Installation with PyTorch** (For advanced text clustering):
-```bash
-virtualenv venv
-source venv/bin/activate
-pip install "crawl4ai[torch] @ git+https://github.com/unclecode/crawl4ai.git"
-```
-Choose this if you need the CosineSimilarity cluster strategy.
-
-- **Installation with Transformers** (For summarization and Hugging Face models):
-```bash
-virtualenv venv
-source venv/bin/activate
-pip install "crawl4ai[transformer] @ git+https://github.com/unclecode/crawl4ai.git"
-```
-Opt for this if you require text summarization or plan to use Hugging Face models.
-
-- **Full Installation** (All features):
-```bash
-virtualenv venv
-source venv/bin/activate
-pip install "crawl4ai[all] @ git+https://github.com/unclecode/crawl4ai.git"
-```
-This installs all dependencies for full functionality.
-
-- **Development Installation** (For contributors):
-```bash
-virtualenv venv
-source venv/bin/activate
-git clone https://github.com/unclecode/crawl4ai.git
-cd crawl4ai
-pip install -e ".[all]"
-```
-Use this if you plan to modify the source code.
-
-💡 After installation, if you have used "torch", "transformer" or "all", it's recommended to run the following CLI command to load the required models. This is optional but will boost the performance and speed of the crawler. You need to do this only once, this is only for when you install using []
-```bash
-crawl4ai-download-models
-```
-
-## Using Docker for Local Server
-
-To run Crawl4AI as a local server using Docker:
-
-```bash
-# For Mac users
-# docker build --platform linux/amd64 -t crawl4ai .
-# For other users
-# docker build -t crawl4ai .
-docker run -d -p 8000:80 crawl4ai
-```
-
-## Using Google Colab
-
-You can also use Crawl4AI in a Google Colab notebook for easy setup and experimentation. Simply open the following Colab notebook and follow the instructions: [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1wz8u30rvbq6Scodye9AGCw8Qg_Z8QGsk)

docs/md/interactive_content.html

@@ -1,28 +0,0 @@
-<h1>Try Our Library</h1>
-<form id="apiForm">
-    <label for="inputField">Enter some input:</label>
-    <input type="text" id="inputField" name="inputField" required>
-    <button type="submit">Submit</button>
-</form>
-<div id="result"></div>
-
-<script>
-    document.getElementById('apiForm').addEventListener('submit', function(event) {
-        event.preventDefault();
-        const input = document.getElementById('inputField').value;
-        fetch('https://your-api-endpoint.com/api', {
-            method: 'POST',
-            headers: {
-                'Content-Type': 'application/json'
-            },
-            body: JSON.stringify({ input: input })
-        })
-        .then(response => response.json())
-        .then(data => {
-            document.getElementById('result').textContent = JSON.stringify(data);
-        })
-        .catch(error => {
-            document.getElementById('result').textContent = 'Error: ' + error;
-        });
-    });
-</script>

docs/md/introduction.md

@@ -1,41 +0,0 @@
-# Introduction
-
-Welcome to the documentation for Crawl4AI v0.2.5! 🕷️🤖
-
-Crawl4AI is designed to simplify the process of crawling web pages and extracting useful information for large language models (LLMs) and AI applications. Whether you're using it as a REST API, a Python library, or through a Google Colab notebook, Crawl4AI provides powerful features to make web data extraction easier and more efficient.
-
-## Key Features ✨
-
-- **🆓 Completely Free and Open-Source**: Crawl4AI is free to use and open-source, making it accessible for everyone.
-- **🤖 LLM-Friendly Output Formats**: Supports JSON, cleaned HTML, and markdown formats.
-- **🌍 Concurrent Crawling**: Crawl multiple URLs simultaneously to save time.
-- **🎨 Media Extraction**: Extract all media tags including images, audio, and video.
-- **🔗 Link Extraction**: Extract all external and internal links from web pages.
-- **📚 Metadata Extraction**: Extract metadata from web pages for additional context.
-- **🔄 Custom Hooks**: Define custom hooks for authentication, headers, and page modifications before crawling.
-- **🕵️ User Agent Support**: Customize the user agent for HTTP requests.
-- **🖼️ Screenshot Capability**: Take screenshots of web pages during crawling.
-- **📜 JavaScript Execution**: Execute custom JavaScripts before crawling.
-- **📚 Advanced Chunking and Extraction Strategies**: Utilize topic-based, regex, sentence chunking, cosine clustering, and LLM extraction strategies.
-- **🎯 CSS Selector Support**: Extract specific content using CSS selectors.
-- **📝 Instruction/Keyword Refinement**: Pass instructions or keywords to refine the extraction process.
-
-## Recent Changes (v0.2.5) 🌟
-
-- **New Hooks**: Added six important hooks to the crawler:
-  - 🟢 `on_driver_created`: Called when the driver is ready for initializations.
-  - 🔵 `before_get_url`: Called right before Selenium fetches the URL.
-  - 🟣 `after_get_url`: Called after Selenium fetches the URL.
-  - 🟠 `before_return_html`: Called when the data is parsed and ready.
-  - 🟡 `on_user_agent_updated`: Called when the user changes the user agent, causing the driver to reinitialize.
-- **New Example**: Added an example in [`quickstart.py`](https://github.com/unclecode/crawl4ai/blob/main/docs/examples/quickstart.py) in the example folder under the docs.
-- **Improved Semantic Context**: Maintaining the semantic context of inline tags (e.g., abbreviation, DEL, INS) for improved LLM-friendliness.
-- **Dockerfile Update**: Updated Dockerfile to ensure compatibility across multiple platforms.
-
-Check the [Changelog](https://github.com/unclecode/crawl4ai/blob/main/CHANGELOG.md) for more details.
-
-## Power and Simplicity of Crawl4AI 🚀
-
-Crawl4AI provides an easy way to crawl and extract data from web pages without installing any library. You can use the REST API on our server or run the local server on your machine. For more advanced control, use the Python library to customize your crawling and extraction strategies.
-
-Explore the documentation to learn more about the features, installation process, usage examples, and how to contribute to Crawl4AI. Let's make the web more accessible and useful for AI applications! 💪🌐🤖

docs/md/quickstart.md

@@ -1,216 +0,0 @@
-# Quick Start Guide 🚀
-
-Welcome to the Crawl4AI Quickstart Guide! In this tutorial, we'll walk you through the basic usage of Crawl4AI with a friendly and humorous tone. We'll cover everything from basic usage to advanced features like chunking and extraction strategies. Let's dive in! 🌟
-
-## Getting Started 🛠️
-
-First, let's create an instance of `WebCrawler` and call the `warmup()` function. This might take a few seconds the first time you run Crawl4AI, as it loads the required model files.
-
-```python
-from crawl4ai import WebCrawler
-
-def create_crawler():
-    crawler = WebCrawler(verbose=True)
-    crawler.warmup()
-    return crawler
-
-crawler = create_crawler()
-```
-
-### Basic Usage
-
-Simply provide a URL and let Crawl4AI do the magic!
-
-```python
-result = crawler.run(url="https://www.nbcnews.com/business")
-print(f"Basic crawl result: {result}")
-```
-
-### Taking Screenshots 📸
-
-Let's take a screenshot of the page!
-
-```python
-result = crawler.run(url="https://www.nbcnews.com/business", screenshot=True)
-with open("screenshot.png", "wb") as f:
-    f.write(base64.b64decode(result.screenshot))
-print("Screenshot saved to 'screenshot.png'!")
-```
-
-### Understanding Parameters 🧠
-
-By default, Crawl4AI caches the results of your crawls. This means that subsequent crawls of the same URL will be much faster! Let's see this in action.
-
-First crawl (caches the result):
-```python
-result = crawler.run(url="https://www.nbcnews.com/business")
-print(f"First crawl result: {result}")
-```
-
-Force to crawl again:
-```python
-result = crawler.run(url="https://www.nbcnews.com/business", bypass_cache=True)
-print(f"Second crawl result: {result}")
-```
-
-### Adding a Chunking Strategy 🧩
-
-Let's add a chunking strategy: `RegexChunking`! This strategy splits the text based on a given regex pattern.
-
-```python
-from crawl4ai.chunking_strategy import RegexChunking
-
-result = crawler.run(
-    url="https://www.nbcnews.com/business",
-    chunking_strategy=RegexChunking(patterns=["\n\n"])
-)
-print(f"RegexChunking result: {result}")
-```
-
-You can also use `NlpSentenceChunking` which splits the text into sentences using NLP techniques.
-
-```python
-from crawl4ai.chunking_strategy import NlpSentenceChunking
-
-result = crawler.run(
-    url="https://www.nbcnews.com/business",
-    chunking_strategy=NlpSentenceChunking()
-)
-print(f"NlpSentenceChunking result: {result}")
-```
-
-### Adding an Extraction Strategy 🧠
-
-Let's get smarter with an extraction strategy: `CosineStrategy`! This strategy uses cosine similarity to extract semantically similar blocks of text.
-
-```python
-from crawl4ai.extraction_strategy import CosineStrategy
-
-result = crawler.run(
-    url="https://www.nbcnews.com/business",
-    extraction_strategy=CosineStrategy(
-        word_count_threshold=10, 
-        max_dist=0.2, 
-        linkage_method="ward", 
-        top_k=3
-    )
-)
-print(f"CosineStrategy result: {result}")
-```
-
-You can also pass other parameters like `semantic_filter` to extract specific content.
-
-```python
-result = crawler.run(
-    url="https://www.nbcnews.com/business",
-    extraction_strategy=CosineStrategy(
-        semantic_filter="inflation rent prices"
-    )
-)
-print(f"CosineStrategy result with semantic filter: {result}")
-```
-
-### Using LLMExtractionStrategy 🤖
-
-Time to bring in the big guns: `LLMExtractionStrategy` without instructions! This strategy uses a large language model to extract relevant information from the web page.
-
-```python
-from crawl4ai.extraction_strategy import LLMExtractionStrategy
-import os
-
-result = crawler.run(
-    url="https://www.nbcnews.com/business",
-    extraction_strategy=LLMExtractionStrategy(
-        provider="openai/gpt-4o", 
-        api_token=os.getenv('OPENAI_API_KEY')
-    )
-)
-print(f"LLMExtractionStrategy (no instructions) result: {result}")
-```
-
-You can also provide specific instructions to guide the extraction.
-
-```python
-result = crawler.run(
-    url="https://www.nbcnews.com/business",
-    extraction_strategy=LLMExtractionStrategy(
-        provider="openai/gpt-4o",
-        api_token=os.getenv('OPENAI_API_KEY'),
-        instruction="I am interested in only financial news"
-    )
-)
-print(f"LLMExtractionStrategy (with instructions) result: {result}")
-```
-
-### Targeted Extraction 🎯
-
-Let's use a CSS selector to extract only H2 tags!
-
-```python
-result = crawler.run(
-    url="https://www.nbcnews.com/business",
-    css_selector="h2"
-)
-print(f"CSS Selector (H2 tags) result: {result}")
-```
-
-### Interactive Extraction 🖱️
-
-Passing JavaScript code to click the 'Load More' button!
-
-```python
-js_code = """
-const loadMoreButton = Array.from(document.querySelectorAll('button')).find(button => button.textContent.includes('Load More'));
-loadMoreButton && loadMoreButton.click();
-"""
-
-result = crawler.run(
-    url="https://www.nbcnews.com/business",
-    js=js_code
-)
-print(f"JavaScript Code (Load More button) result: {result}")
-```
-
-### Using Crawler Hooks 🔗
-
-Let's see how we can customize the crawler using hooks!
-
-```python
-def on_driver_created(driver):
-    print("[HOOK] on_driver_created")
-    driver.maximize_window()
-    driver.get('https://example.com/login')
-    driver.find_element(By.NAME, 'username').send_keys('testuser')
-    driver.find_element(By.NAME, 'password').send_keys('password123')
-    driver.find_element(By.NAME, 'login').click()
-    driver.add_cookie({'name': 'test_cookie', 'value': 'cookie_value'})
-    return driver        
-
-def before_get_url(driver):
-    print("[HOOK] before_get_url")
-    driver.execute_cdp_cmd('Network.enable', {})
-    driver.execute_cdp_cmd('Network.setExtraHTTPHeaders', {'headers': {'X-Test-Header': 'test'}})
-    return driver
-
-def after_get_url(driver):
-    print("[HOOK] after_get_url")
-    print(driver.current_url)
-    return driver
-
-def before_return_html(driver, html):
-    print("[HOOK] before_return_html")
-    print(len(html))
-    return driver
-
-crawler.set_hook('on_driver_created', on_driver_created)
-crawler.set_hook('before_get_url', before_get_url)
-crawler.set_hook('after_get_url', after_get_url)
-crawler.set_hook('before_return_html', before_return_html)
-
-result = crawler.run(url="https://example.com")
-print(f"Crawler Hooks result: {result}")
-```
-
-## Congratulations! 🎉
-
-You've made it through the Crawl4AI Quickstart Guide! Now go forth and crawl the web like a pro! 🕸️

docs/md_v2/advanced/content-processing.md

@@ -0,0 +1,223 @@
+# Content Processing
+
+Crawl4AI provides powerful content processing capabilities that help you extract clean, relevant content from web pages. This guide covers content cleaning, media handling, link analysis, and metadata extraction.
+
+## Content Cleaning
+
+### Understanding Clean Content
+When crawling web pages, you often encounter a lot of noise - advertisements, navigation menus, footers, popups, and other irrelevant content. Crawl4AI automatically cleans this noise using several approaches:
+
+1. **Basic Cleaning**: Removes unwanted HTML elements and attributes
+2. **Content Relevance**: Identifies and preserves meaningful content blocks
+3. **Layout Analysis**: Understands page structure to identify main content areas
+
+```python
+result = await crawler.arun(
+    url="https://example.com",
+    word_count_threshold=10,        # Remove blocks with fewer words
+    excluded_tags=['form', 'nav'],  # Remove specific HTML tags
+    remove_overlay_elements=True    # Remove popups/modals
+)
+
+# Get clean content
+print(result.cleaned_html)  # Cleaned HTML
+print(result.markdown)      # Clean markdown version
+```
+
+### Fit Markdown: Smart Content Extraction
+One of Crawl4AI's most powerful features is `fit_markdown`. This feature uses advanced heuristics to identify and extract the main content from a webpage while excluding irrelevant elements.
+
+#### How Fit Markdown Works
+- Analyzes content density and distribution
+- Identifies content patterns and structures
+- Removes boilerplate content (headers, footers, sidebars)
+- Preserves the most relevant content blocks
+- Maintains content hierarchy and formatting
+
+#### Perfect For:
+- Blog posts and articles
+- News content
+- Documentation pages
+- Any page with a clear main content area
+
+#### Not Recommended For:
+- E-commerce product listings
+- Search results pages
+- Social media feeds
+- Pages with multiple equal-weight content sections
+
+```python
+result = await crawler.arun(url="https://example.com")
+
+# Get the most relevant content
+main_content = result.fit_markdown
+
+# Compare with regular markdown
+all_content = result.markdown
+
+print(f"Fit Markdown Length: {len(main_content)}")
+print(f"Regular Markdown Length: {len(all_content)}")
+```
+
+#### Example Use Case
+```python
+async def extract_article_content(url: str) -> str:
+    """Extract main article content from a blog or news site."""
+    async with AsyncWebCrawler() as crawler:
+        result = await crawler.arun(url=url)
+        
+        # fit_markdown will focus on the article content,
+        # excluding navigation, ads, and other distractions
+        return result.fit_markdown
+```
+
+## Media Processing
+
+Crawl4AI provides comprehensive media extraction and analysis capabilities. It automatically detects and processes various types of media elements while maintaining their context and relevance.
+
+### Image Processing
+The library handles various image scenarios, including:
+- Regular images
+- Lazy-loaded images
+- Background images
+- Responsive images
+- Image metadata and context
+
+```python
+result = await crawler.arun(url="https://example.com")
+
+for image in result.media["images"]:
+    # Each image includes rich metadata
+    print(f"Source: {image['src']}")
+    print(f"Alt text: {image['alt']}")
+    print(f"Description: {image['desc']}")
+    print(f"Context: {image['context']}")  # Surrounding text
+    print(f"Relevance score: {image['score']}")  # 0-10 score
+```
+
+### Handling Lazy-Loaded Content
+Crawl4aai already handles lazy loading for media elements. You can also customize the wait time for lazy-loaded content:
+
+```python
+result = await crawler.arun(
+    url="https://example.com",
+    wait_for="css:img[data-src]",  # Wait for lazy images
+    delay_before_return_html=2.0   # Additional wait time
+)
+```
+
+### Video and Audio Content
+The library extracts video and audio elements with their metadata:
+
+```python
+# Process videos
+for video in result.media["videos"]:
+    print(f"Video source: {video['src']}")
+    print(f"Type: {video['type']}")
+    print(f"Duration: {video.get('duration')}")
+    print(f"Thumbnail: {video.get('poster')}")
+
+# Process audio
+for audio in result.media["audios"]:
+    print(f"Audio source: {audio['src']}")
+    print(f"Type: {audio['type']}")
+    print(f"Duration: {audio.get('duration')}")
+```
+
+## Link Analysis
+
+Crawl4AI provides sophisticated link analysis capabilities, helping you understand the relationship between pages and identify important navigation patterns.
+
+### Link Classification
+The library automatically categorizes links into:
+- Internal links (same domain)
+- External links (different domains)
+- Social media links
+- Navigation links
+- Content links
+
+```python
+result = await crawler.arun(url="https://example.com")
+
+# Analyze internal links
+for link in result.links["internal"]:
+    print(f"Internal: {link['href']}")
+    print(f"Link text: {link['text']}")
+    print(f"Context: {link['context']}")  # Surrounding text
+    print(f"Type: {link['type']}")  # nav, content, etc.
+
+# Analyze external links
+for link in result.links["external"]:
+    print(f"External: {link['href']}")
+    print(f"Domain: {link['domain']}")
+    print(f"Type: {link['type']}")
+```
+
+### Smart Link Filtering
+Control which links are included in the results:
+
+```python
+result = await crawler.arun(
+    url="https://example.com",
+    exclude_external_links=True,          # Remove external links
+    exclude_social_media_links=True,      # Remove social media links
+    exclude_social_media_domains=[                # Custom social media domains
+        "facebook.com", "twitter.com", "instagram.com"
+    ],
+    exclude_domains=["ads.example.com"]   # Exclude specific domains
+)
+```
+
+## Metadata Extraction
+
+Crawl4AI automatically extracts and processes page metadata, providing valuable information about the content:
+
+```python
+result = await crawler.arun(url="https://example.com")
+
+metadata = result.metadata
+print(f"Title: {metadata['title']}")
+print(f"Description: {metadata['description']}")
+print(f"Keywords: {metadata['keywords']}")
+print(f"Author: {metadata['author']}")
+print(f"Published Date: {metadata['published_date']}")
+print(f"Modified Date: {metadata['modified_date']}")
+print(f"Language: {metadata['language']}")
+```
+
+## Best Practices
+
+1. **Use Fit Markdown for Articles**
+   ```python
+   # Perfect for blog posts, news articles, documentation
+   content = result.fit_markdown
+   ```
+
+2. **Handle Media Appropriately**
+   ```python
+   # Filter by relevance score
+   relevant_images = [
+       img for img in result.media["images"]
+       if img['score'] > 5
+   ]
+   ```
+
+3. **Combine Link Analysis with Content**
+   ```python
+   # Get content links with context
+   content_links = [
+       link for link in result.links["internal"]
+       if link['type'] == 'content'
+   ]
+   ```
+
+4. **Clean Content with Purpose**
+   ```python
+   # Customize cleaning based on your needs
+   result = await crawler.arun(
+       url=url,
+       word_count_threshold=20,      # Adjust based on content type
+       keep_data_attributes=False,   # Remove data attributes
+       process_iframes=True         # Include iframe content
+   )
+   ```

docs/md_v2/advanced/hooks-auth.md

@@ -0,0 +1,110 @@
+# Hooks & Auth for AsyncWebCrawler
+
+Crawl4AI's AsyncWebCrawler allows you to customize the behavior of the web crawler using hooks. Hooks are asynchronous functions that are called at specific points in the crawling process, allowing you to modify the crawler's behavior or perform additional actions. This example demonstrates how to use various hooks to customize the asynchronous crawling process.
+
+## Example: Using Crawler Hooks with AsyncWebCrawler
+
+Let's see how we can customize the AsyncWebCrawler using hooks! In this example, we'll:
+
+1. Configure the browser when it's created.
+2. Add custom headers before navigating to the URL.
+3. Log the current URL after navigation.
+4. Perform actions after JavaScript execution.
+5. Log the length of the HTML before returning it.
+
+### Hook Definitions
+
+```python
+import asyncio
+from crawl4ai import AsyncWebCrawler
+from crawl4ai.async_crawler_strategy import AsyncPlaywrightCrawlerStrategy
+from playwright.async_api import Page, Browser
+
+async def on_browser_created(browser: Browser):
+    print("[HOOK] on_browser_created")
+    # Example customization: set browser viewport size
+    context = await browser.new_context(viewport={'width': 1920, 'height': 1080})
+    page = await context.new_page()
+    
+    # Example customization: logging in to a hypothetical website
+    await page.goto('https://example.com/login')
+    await page.fill('input[name="username"]', 'testuser')
+    await page.fill('input[name="password"]', 'password123')
+    await page.click('button[type="submit"]')
+    await page.wait_for_selector('#welcome')
+    
+    # Add a custom cookie
+    await context.add_cookies([{'name': 'test_cookie', 'value': 'cookie_value', 'url': 'https://example.com'}])
+    
+    await page.close()
+    await context.close()
+
+async def before_goto(page: Page):
+    print("[HOOK] before_goto")
+    # Example customization: add custom headers
+    await page.set_extra_http_headers({'X-Test-Header': 'test'})
+
+async def after_goto(page: Page):
+    print("[HOOK] after_goto")
+    # Example customization: log the URL
+    print(f"Current URL: {page.url}")
+
+async def on_execution_started(page: Page):
+    print("[HOOK] on_execution_started")
+    # Example customization: perform actions after JS execution
+    await page.evaluate("console.log('Custom JS executed')")
+
+async def before_return_html(page: Page, html: str):
+    print("[HOOK] before_return_html")
+    # Example customization: log the HTML length
+    print(f"HTML length: {len(html)}")
+    return page
+```
+
+### Using the Hooks with the AsyncWebCrawler
+
+```python
+import asyncio
+from crawl4ai import AsyncWebCrawler
+from crawl4ai.async_crawler_strategy import AsyncPlaywrightCrawlerStrategy
+
+async def main():
+    print("\n🔗 Using Crawler Hooks: Let's see how we can customize the AsyncWebCrawler using hooks!")
+    
+    crawler_strategy = AsyncPlaywrightCrawlerStrategy(verbose=True)
+    crawler_strategy.set_hook('on_browser_created', on_browser_created)
+    crawler_strategy.set_hook('before_goto', before_goto)
+    crawler_strategy.set_hook('after_goto', after_goto)
+    crawler_strategy.set_hook('on_execution_started', on_execution_started)
+    crawler_strategy.set_hook('before_return_html', before_return_html)
+    
+    async with AsyncWebCrawler(verbose=True, crawler_strategy=crawler_strategy) as crawler:
+        result = await crawler.arun(
+            url="https://example.com",
+            js_code="window.scrollTo(0, document.body.scrollHeight);",
+            wait_for="footer"
+        )
+
+    print("📦 Crawler Hooks result:")
+    print(result)
+
+asyncio.run(main())
+```
+
+### Explanation
+
+- `on_browser_created`: This hook is called when the Playwright browser is created. It sets up the browser context, logs in to a website, and adds a custom cookie.
+- `before_goto`: This hook is called right before Playwright navigates to the URL. It adds custom HTTP headers.
+- `after_goto`: This hook is called after Playwright navigates to the URL. It logs the current URL.
+- `on_execution_started`: This hook is called after any custom JavaScript is executed. It performs additional JavaScript actions.
+- `before_return_html`: This hook is called before returning the HTML content. It logs the length of the HTML content.
+
+### Additional Ideas
+
+- **Handling authentication**: Use the `on_browser_created` hook to handle login processes or set authentication tokens.
+- **Dynamic header modification**: Modify headers based on the target URL or other conditions in the `before_goto` hook.
+- **Content verification**: Use the `after_goto` hook to verify that the expected content is present on the page.
+- **Custom JavaScript injection**: Inject and execute custom JavaScript using the `on_execution_started` hook.
+- **Content preprocessing**: Modify or analyze the HTML content in the `before_return_html` hook before it's returned.
+
+By using these hooks, you can customize the behavior of the AsyncWebCrawler to suit your specific needs, including handling authentication, modifying requests, and preprocessing content.

docs/md_v2/advanced/magic-mode.md

@@ -0,0 +1,52 @@
+# Magic Mode & Anti-Bot Protection
+
+Crawl4AI provides powerful anti-detection capabilities, with Magic Mode being the simplest and most comprehensive solution.
+
+## Magic Mode
+
+The easiest way to bypass anti-bot protections:
+
+```python
+async with AsyncWebCrawler() as crawler:
+    result = await crawler.arun(
+        url="https://example.com",
+        magic=True  # Enables all anti-detection features
+    )
+```
+
+Magic Mode automatically:
+- Masks browser automation signals
+- Simulates human-like behavior
+- Overrides navigator properties
+- Handles cookie consent popups
+- Manages browser fingerprinting
+- Randomizes timing patterns
+
+## Manual Anti-Bot Options
+
+While Magic Mode is recommended, you can also configure individual anti-detection features:
+
+```python
+result = await crawler.arun(
+    url="https://example.com",
+    simulate_user=True,        # Simulate human behavior
+    override_navigator=True    # Mask automation signals
+)
+```
+
+Note: When `magic=True` is used, you don't need to set these individual options.
+
+## Example: Handling Protected Sites
+
+```python
+async def crawl_protected_site(url: str):
+    async with AsyncWebCrawler(headless=True) as crawler:
+        result = await crawler.arun(
+            url=url,
+            magic=True,
+            remove_overlay_elements=True,  # Remove popups/modals
+            page_timeout=60000            # Increased timeout for protection checks
+        )
+        
+        return result.markdown if result.success else None
+```

docs/md_v2/advanced/proxy-security.md

@@ -0,0 +1,84 @@
+# Proxy & Security
+
+Configure proxy settings and enhance security features in Crawl4AI for reliable data extraction.
+
+## Basic Proxy Setup
+
+Simple proxy configuration:
+
+```python
+# Using proxy URL
+async with AsyncWebCrawler(
+    proxy="http://proxy.example.com:8080"
+) as crawler:
+    result = await crawler.arun(url="https://example.com")
+
+# Using SOCKS proxy
+async with AsyncWebCrawler(
+    proxy="socks5://proxy.example.com:1080"
+) as crawler:
+    result = await crawler.arun(url="https://example.com")
+```
+
+## Authenticated Proxy
+
+Use proxy with authentication:
+
+```python
+proxy_config = {
+    "server": "http://proxy.example.com:8080",
+    "username": "user",
+    "password": "pass"
+}
+
+async with AsyncWebCrawler(proxy_config=proxy_config) as crawler:
+    result = await crawler.arun(url="https://example.com")
+```
+
+## Rotating Proxies
+
+Example using a proxy rotation service:
+
+```python
+async def get_next_proxy():
+    # Your proxy rotation logic here
+    return {"server": "http://next.proxy.com:8080"}
+
+async with AsyncWebCrawler() as crawler:
+    # Update proxy for each request
+    for url in urls:
+        proxy = await get_next_proxy()
+        crawler.update_proxy(proxy)
+        result = await crawler.arun(url=url)
+```
+
+## Custom Headers
+
+Add security-related headers:
+
+```python
+headers = {
+    "X-Forwarded-For": "203.0.113.195",
+    "Accept-Language": "en-US,en;q=0.9",
+    "Cache-Control": "no-cache",
+    "Pragma": "no-cache"
+}
+
+async with AsyncWebCrawler(headers=headers) as crawler:
+    result = await crawler.arun(url="https://example.com")
+```
+
+## Combining with Magic Mode
+
+For maximum protection, combine proxy with Magic Mode:
+
+```python
+async with AsyncWebCrawler(
+    proxy="http://proxy.example.com:8080",
+    headers={"Accept-Language": "en-US"}
+) as crawler:
+    result = await crawler.arun(
+        url="https://example.com",
+        magic=True  # Enable all anti-detection features
+    )
+```

docs/md_v2/advanced/session-management-advanced.md

@@ -0,0 +1,276 @@
+# Session-Based Crawling for Dynamic Content
+
+In modern web applications, content is often loaded dynamically without changing the URL. Examples include "Load More" buttons, infinite scrolling, or paginated content that updates via JavaScript. To effectively crawl such websites, Crawl4AI provides powerful session-based crawling capabilities.
+
+This guide will explore advanced techniques for crawling dynamic content using Crawl4AI's session management features.
+
+## Understanding Session-Based Crawling
+
+Session-based crawling allows you to maintain a persistent browser session across multiple requests. This is crucial when:
+
+1. The content changes dynamically without URL changes
+2. You need to interact with the page (e.g., clicking buttons) between requests
+3. The site requires authentication or maintains state across pages
+
+Crawl4AI's `AsyncWebCrawler` class supports session-based crawling through the `session_id` parameter and related methods.
+
+## Basic Concepts
+
+Before diving into examples, let's review some key concepts:
+
+- **Session ID**: A unique identifier for a browsing session. Use the same `session_id` across multiple `arun` calls to maintain state.
+- **JavaScript Execution**: Use the `js_code` parameter to execute JavaScript on the page, such as clicking a "Load More" button.
+- **CSS Selectors**: Use these to target specific elements for extraction or interaction.
+- **Extraction Strategy**: Define how to extract structured data from the page.
+- **Wait Conditions**: Specify conditions to wait for before considering the page loaded.
+
+## Example 1: Basic Session-Based Crawling
+
+Let's start with a basic example of session-based crawling:
+
+```python
+import asyncio
+from crawl4ai import AsyncWebCrawler
+
+async def basic_session_crawl():
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        session_id = "my_session"
+        url = "https://example.com/dynamic-content"
+
+        for page in range(3):
+            result = await crawler.arun(
+                url=url,
+                session_id=session_id,
+                js_code="document.querySelector('.load-more-button').click();" if page > 0 else None,
+                css_selector=".content-item",
+                bypass_cache=True
+            )
+            
+            print(f"Page {page + 1}: Found {result.extracted_content.count('.content-item')} items")
+
+        await crawler.crawler_strategy.kill_session(session_id)
+
+asyncio.run(basic_session_crawl())
+```
+
+This example demonstrates:
+1. Using a consistent `session_id` across multiple `arun` calls
+2. Executing JavaScript to load more content after the first page
+3. Using a CSS selector to extract specific content
+4. Properly closing the session after crawling
+
+## Advanced Technique 1: Custom Execution Hooks
+
+Crawl4AI allows you to set custom hooks that execute at different stages of the crawling process. This is particularly useful for handling complex loading scenarios.
+
+Here's an example that waits for new content to appear before proceeding:
+
+```python
+async def advanced_session_crawl_with_hooks():
+    first_commit = ""
+
+    async def on_execution_started(page):
+        nonlocal first_commit
+        try:
+            while True:
+                await page.wait_for_selector("li.commit-item h4")
+                commit = await page.query_selector("li.commit-item h4")
+                commit = await commit.evaluate("(element) => element.textContent")
+                commit = commit.strip()
+                if commit and commit != first_commit:
+                    first_commit = commit
+                    break
+                await asyncio.sleep(0.5)
+        except Exception as e:
+            print(f"Warning: New content didn't appear after JavaScript execution: {e}")
+
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        crawler.crawler_strategy.set_hook("on_execution_started", on_execution_started)
+
+        url = "https://github.com/example/repo/commits/main"
+        session_id = "commit_session"
+        all_commits = []
+
+        js_next_page = """
+        const button = document.querySelector('a.pagination-next');
+        if (button) button.click();
+        """
+
+        for page in range(3):
+            result = await crawler.arun(
+                url=url,
+                session_id=session_id,
+                css_selector="li.commit-item",
+                js_code=js_next_page if page > 0 else None,
+                bypass_cache=True,
+                js_only=page > 0
+            )
+
+            commits = result.extracted_content.select("li.commit-item")
+            all_commits.extend(commits)
+            print(f"Page {page + 1}: Found {len(commits)} commits")
+
+        await crawler.crawler_strategy.kill_session(session_id)
+        print(f"Successfully crawled {len(all_commits)} commits across 3 pages")
+
+asyncio.run(advanced_session_crawl_with_hooks())
+```
+
+This technique uses a custom `on_execution_started` hook to ensure new content has loaded before proceeding to the next step.
+
+## Advanced Technique 2: Integrated JavaScript Execution and Waiting
+
+Instead of using separate hooks, you can integrate the waiting logic directly into your JavaScript execution. This approach can be more concise and easier to manage for some scenarios.
+
+Here's an example:
+
+```python
+async def integrated_js_and_wait_crawl():
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        url = "https://github.com/example/repo/commits/main"
+        session_id = "integrated_session"
+        all_commits = []
+
+        js_next_page_and_wait = """
+        (async () => {
+            const getCurrentCommit = () => {
+                const commits = document.querySelectorAll('li.commit-item h4');
+                return commits.length > 0 ? commits[0].textContent.trim() : null;
+            };
+
+            const initialCommit = getCurrentCommit();
+            const button = document.querySelector('a.pagination-next');
+            if (button) button.click();
+
+            while (true) {
+                await new Promise(resolve => setTimeout(resolve, 100));
+                const newCommit = getCurrentCommit();
+                if (newCommit && newCommit !== initialCommit) {
+                    break;
+                }
+            }
+        })();
+        """
+
+        schema = {
+            "name": "Commit Extractor",
+            "baseSelector": "li.commit-item",
+            "fields": [
+                {
+                    "name": "title",
+                    "selector": "h4.commit-title",
+                    "type": "text",
+                    "transform": "strip",
+                },
+            ],
+        }
+        extraction_strategy = JsonCssExtractionStrategy(schema, verbose=True)
+
+        for page in range(3):
+            result = await crawler.arun(
+                url=url,
+                session_id=session_id,
+                css_selector="li.commit-item",
+                extraction_strategy=extraction_strategy,
+                js_code=js_next_page_and_wait if page > 0 else None,
+                js_only=page > 0,
+                bypass_cache=True
+            )
+
+            commits = json.loads(result.extracted_content)
+            all_commits.extend(commits)
+            print(f"Page {page + 1}: Found {len(commits)} commits")
+
+        await crawler.crawler_strategy.kill_session(session_id)
+        print(f"Successfully crawled {len(all_commits)} commits across 3 pages")
+
+asyncio.run(integrated_js_and_wait_crawl())
+```
+
+This approach combines the JavaScript for clicking the "next" button and waiting for new content to load into a single script.
+
+## Advanced Technique 3: Using the `wait_for` Parameter
+
+Crawl4AI provides a `wait_for` parameter that allows you to specify a condition to wait for before considering the page fully loaded. This can be particularly useful for dynamic content.
+
+Here's an example:
+
+```python
+async def wait_for_parameter_crawl():
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        url = "https://github.com/example/repo/commits/main"
+        session_id = "wait_for_session"
+        all_commits = []
+
+        js_next_page = """
+        const commits = document.querySelectorAll('li.commit-item h4');
+        if (commits.length > 0) {
+            window.lastCommit = commits[0].textContent.trim();
+        }
+        const button = document.querySelector('a.pagination-next');
+        if (button) button.click();
+        """
+
+        wait_for = """() => {
+            const commits = document.querySelectorAll('li.commit-item h4');
+            if (commits.length === 0) return false;
+            const firstCommit = commits[0].textContent.trim();
+            return firstCommit !== window.lastCommit;
+        }"""
+        
+        schema = {
+            "name": "Commit Extractor",
+            "baseSelector": "li.commit-item",
+            "fields": [
+                {
+                    "name": "title",
+                    "selector": "h4.commit-title",
+                    "type": "text",
+                    "transform": "strip",
+                },
+            ],
+        }
+        extraction_strategy = JsonCssExtractionStrategy(schema, verbose=True)
+
+        for page in range(3):
+            result = await crawler.arun(
+                url=url,
+                session_id=session_id,
+                css_selector="li.commit-item",
+                extraction_strategy=extraction_strategy,
+                js_code=js_next_page if page > 0 else None,
+                wait_for=wait_for if page > 0 else None,
+                js_only=page > 0,
+                bypass_cache=True
+            )
+
+            commits = json.loads(result.extracted_content)
+            all_commits.extend(commits)
+            print(f"Page {page + 1}: Found {len(commits)} commits")
+
+        await crawler.crawler_strategy.kill_session(session_id)
+        print(f"Successfully crawled {len(all_commits)} commits across 3 pages")
+
+asyncio.run(wait_for_parameter_crawl())
+```
+
+This technique separates the JavaScript execution (clicking the "next" button) from the waiting condition, providing more flexibility and clarity in some scenarios.
+
+## Best Practices for Session-Based Crawling
+
+1. **Use Unique Session IDs**: Ensure each crawling session has a unique `session_id` to prevent conflicts.
+2. **Close Sessions**: Always close sessions using `kill_session` when you're done to free up resources.
+3. **Handle Errors**: Implement proper error handling to deal with unexpected situations during crawling.
+4. **Respect Website Terms**: Ensure your crawling adheres to the website's terms of service and robots.txt file.
+5. **Implement Delays**: Add appropriate delays between requests to avoid overwhelming the target server.
+6. **Use Extraction Strategies**: Leverage `JsonCssExtractionStrategy` or other extraction strategies for structured data extraction.
+7. **Optimize JavaScript**: Keep your JavaScript execution concise and efficient to improve crawling speed.
+8. **Monitor Performance**: Keep an eye on memory usage and crawling speed, especially for long-running sessions.
+
+## Conclusion
+
+Session-based crawling with Crawl4AI provides powerful capabilities for handling dynamic content and complex web applications. By leveraging session management, JavaScript execution, and waiting strategies, you can effectively crawl and extract data from a wide range of modern websites.
+
+Remember to use these techniques responsibly and in compliance with website policies and ethical web scraping practices.
+
+For more advanced usage and API details, refer to the Crawl4AI API documentation.

docs/md_v2/advanced/session-management.md

@@ -0,0 +1,133 @@
+# Session Management
+
+Session management in Crawl4AI allows you to maintain state across multiple requests and handle complex multi-page crawling tasks, particularly useful for dynamic websites.
+
+## Basic Session Usage
+
+Use `session_id` to maintain state between requests:
+
+```python
+async with AsyncWebCrawler() as crawler:
+    session_id = "my_session"
+    
+    # First request
+    result1 = await crawler.arun(
+        url="https://example.com/page1",
+        session_id=session_id
+    )
+    
+    # Subsequent request using same session
+    result2 = await crawler.arun(
+        url="https://example.com/page2",
+        session_id=session_id
+    )
+    
+    # Clean up when done
+    await crawler.crawler_strategy.kill_session(session_id)
+```
+
+## Dynamic Content with Sessions
+
+Here's a real-world example of crawling GitHub commits across multiple pages:
+
+```python
+async def crawl_dynamic_content():
+    async with AsyncWebCrawler(verbose=True) as crawler:
+        url = "https://github.com/microsoft/TypeScript/commits/main"
+        session_id = "typescript_commits_session"
+        all_commits = []
+
+        # Define navigation JavaScript
+        js_next_page = """
+        const button = document.querySelector('a[data-testid="pagination-next-button"]');
+        if (button) button.click();
+        """
+
+        # Define wait condition
+        wait_for = """() => {
+            const commits = document.querySelectorAll('li.Box-sc-g0xbh4-0 h4');
+            if (commits.length === 0) return false;
+            const firstCommit = commits[0].textContent.trim();
+            return firstCommit !== window.firstCommit;
+        }"""
+        
+        # Define extraction schema
+        schema = {
+            "name": "Commit Extractor",
+            "baseSelector": "li.Box-sc-g0xbh4-0",
+            "fields": [
+                {
+                    "name": "title",
+                    "selector": "h4.markdown-title",
+                    "type": "text",
+                    "transform": "strip",
+                },
+            ],
+        }
+        extraction_strategy = JsonCssExtractionStrategy(schema)
+
+        # Crawl multiple pages
+        for page in range(3):
+            result = await crawler.arun(
+                url=url,
+                session_id=session_id,
+                extraction_strategy=extraction_strategy,
+                js_code=js_next_page if page > 0 else None,
+                wait_for=wait_for if page > 0 else None,
+                js_only=page > 0,
+                bypass_cache=True
+            )
+
+            if result.success:
+                commits = json.loads(result.extracted_content)
+                all_commits.extend(commits)
+                print(f"Page {page + 1}: Found {len(commits)} commits")
+
+        # Clean up session
+        await crawler.crawler_strategy.kill_session(session_id)
+        return all_commits
+```
+
+## Session Best Practices
+
+1. **Session Naming**:
+```python
+# Use descriptive session IDs
+session_id = "login_flow_session"
+session_id = "product_catalog_session"
+```
+
+2. **Resource Management**:
+```python
+try:
+    # Your crawling code
+    pass
+finally:
+    # Always clean up sessions
+    await crawler.crawler_strategy.kill_session(session_id)
+```
+
+3. **State Management**:
+```python
+# First page: login
+result = await crawler.arun(
+    url="https://example.com/login",
+    session_id=session_id,
+    js_code="document.querySelector('form').submit();"
+)
+
+# Second page: verify login success
+result = await crawler.arun(
+    url="https://example.com/dashboard",
+    session_id=session_id,
+    wait_for="css:.user-profile"  # Wait for authenticated content
+)
+```
+
+## Common Use Cases
+
+1. **Authentication Flows**
+2. **Pagination Handling**
+3. **Form Submissions**
+4. **Multi-step Processes**
+5. **Dynamic Content Navigation**

docs/md_v2/api/arun.md

@@ -0,0 +1,226 @@
+# Complete Parameter Guide for arun()
+
+The following parameters can be passed to the `arun()` method. They are organized by their primary usage context and functionality.
+
+## Core Parameters
+
+```python
+await crawler.arun(
+    url="https://example.com",   # Required: URL to crawl
+    verbose=True,               # Enable detailed logging
+    bypass_cache=False,         # Skip cache for this request
+    warmup=True                # Whether to run warmup check
+)
+```
+
+## Content Processing Parameters
+
+### Text Processing
+```python
+await crawler.arun(
+    word_count_threshold=10,                # Minimum words per content block
+    image_description_min_word_threshold=5,  # Minimum words for image descriptions
+    only_text=False,                        # Extract only text content
+    excluded_tags=['form', 'nav'],          # HTML tags to exclude
+    keep_data_attributes=False,             # Preserve data-* attributes
+)
+```
+
+### Content Selection
+```python
+await crawler.arun(
+    css_selector=".main-content",  # CSS selector for content extraction
+    remove_forms=True,             # Remove all form elements
+    remove_overlay_elements=True,  # Remove popups/modals/overlays
+)
+```
+
+### Link Handling
+```python
+await crawler.arun(
+    exclude_external_links=True,          # Remove external links
+    exclude_social_media_links=True,      # Remove social media links
+    exclude_external_images=True,         # Remove external images
+    exclude_domains=["ads.example.com"],  # Specific domains to exclude
+    social_media_domains=[               # Additional social media domains
+        "facebook.com",
+        "twitter.com",
+        "instagram.com"
+    ]
+)
+```
+
+## Browser Control Parameters
+
+### Basic Browser Settings
+```python
+await crawler.arun(
+    headless=True,                # Run browser in headless mode
+    browser_type="chromium",      # Browser engine: "chromium", "firefox", "webkit"
+    page_timeout=60000,          # Page load timeout in milliseconds
+    user_agent="custom-agent",    # Custom user agent
+)
+```
+
+### Navigation and Waiting
+```python
+await crawler.arun(
+    wait_for="css:.dynamic-content",  # Wait for element/condition
+    delay_before_return_html=2.0,     # Wait before returning HTML (seconds)
+)
+```
+
+### JavaScript Execution
+```python
+await crawler.arun(
+    js_code=[                     # JavaScript to execute (string or list)
+        "window.scrollTo(0, document.body.scrollHeight);",
+        "document.querySelector('.load-more').click();"
+    ],
+    js_only=False,               # Only execute JavaScript without reloading page
+)
+```
+
+### Anti-Bot Features
+```python
+await crawler.arun(
+    magic=True,              # Enable all anti-detection features
+    simulate_user=True,      # Simulate human behavior
+    override_navigator=True  # Override navigator properties
+)
+```
+
+### Session Management
+```python
+await crawler.arun(
+    session_id="my_session",  # Session identifier for persistent browsing
+)
+```
+
+### Screenshot Options
+```python
+await crawler.arun(
+    screenshot=True,              # Take page screenshot
+    screenshot_wait_for=2.0,      # Wait before screenshot (seconds)
+)
+```
+
+### Proxy Configuration
+```python
+await crawler.arun(
+    proxy="http://proxy.example.com:8080",     # Simple proxy URL
+    proxy_config={                             # Advanced proxy settings
+        "server": "http://proxy.example.com:8080",
+        "username": "user",
+        "password": "pass"
+    }
+)
+```
+
+## Content Extraction Parameters
+
+### Extraction Strategy
+```python
+await crawler.arun(
+    extraction_strategy=LLMExtractionStrategy(
+        provider="ollama/llama2",
+        schema=MySchema.schema(),
+        instruction="Extract specific data"
+    )
+)
+```
+
+### Chunking Strategy
+```python
+await crawler.arun(
+    chunking_strategy=RegexChunking(
+        patterns=[r'\n\n', r'\.\s+']
+    )
+)
+```
+
+### HTML to Text Options
+```python
+await crawler.arun(
+    html2text={
+        "ignore_links": False,
+        "ignore_images": False,
+        "escape_dot": False,
+        "body_width": 0,
+        "protect_links": True,
+        "unicode_snob": True
+    }
+)
+```
+
+## Debug Options
+```python
+await crawler.arun(
+    log_console=True,   # Log browser console messages
+)
+```
+
+## Parameter Interactions and Notes
+
+1. **Magic Mode Combinations**
+   ```python
+   # Full anti-detection setup
+   await crawler.arun(
+       magic=True,
+       headless=False,
+       simulate_user=True,
+       override_navigator=True
+   )
+   ```
+
+2. **Dynamic Content Handling**
+   ```python
+   # Handle lazy-loaded content
+   await crawler.arun(
+       js_code="window.scrollTo(0, document.body.scrollHeight);",
+       wait_for="css:.lazy-content",
+       delay_before_return_html=2.0
+   )
+   ```
+
+3. **Content Extraction Pipeline**
+   ```python
+   # Complete extraction setup
+   await crawler.arun(
+       css_selector=".main-content",
+       word_count_threshold=20,
+       extraction_strategy=my_strategy,
+       chunking_strategy=my_chunking,
+       process_iframes=True,
+       remove_overlay_elements=True
+   )
+   ```
+
+## Best Practices
+
+1. **Performance Optimization**
+   ```python
+   await crawler.arun(
+       bypass_cache=False,           # Use cache when possible
+       word_count_threshold=10,      # Filter out noise
+       process_iframes=False         # Skip iframes if not needed
+   )
+   ```
+
+2. **Reliable Scraping**
+   ```python
+   await crawler.arun(
+       magic=True,                   # Enable anti-detection
+       delay_before_return_html=1.0, # Wait for dynamic content
+       page_timeout=60000           # Longer timeout for slow pages
+   )
+   ```
+
+3. **Clean Content**
+   ```python
+   await crawler.arun(
+       remove_overlay_elements=True,  # Remove popups
+       excluded_tags=['nav', 'aside'],# Remove unnecessary elements
+       keep_data_attributes=False     # Remove data attributes
+   )
+   ```

docs/md_v2/api/async-webcrawler.md

@@ -0,0 +1,320 @@
+# AsyncWebCrawler
+
+The `AsyncWebCrawler` class is the main interface for web crawling operations. It provides asynchronous web crawling capabilities with extensive configuration options.
+
+## Constructor
+
+```python
+AsyncWebCrawler(
+    # Browser Settings
+    browser_type: str = "chromium",         # Options: "chromium", "firefox", "webkit"
+    headless: bool = True,                  # Run browser in headless mode
+    verbose: bool = False,                  # Enable verbose logging
+    
+    # Cache Settings
+    always_by_pass_cache: bool = False,     # Always bypass cache
+    base_directory: str = str(Path.home()), # Base directory for cache
+    
+    # Network Settings
+    proxy: str = None,                      # Simple proxy URL
+    proxy_config: Dict = None,              # Advanced proxy configuration
+    
+    # Browser Behavior
+    sleep_on_close: bool = False,           # Wait before closing browser
+    
+    # Custom Settings
+    user_agent: str = None,                 # Custom user agent
+    headers: Dict[str, str] = {},           # Custom HTTP headers
+    js_code: Union[str, List[str]] = None,  # Default JavaScript to execute
+)
+```
+
+### Parameters in Detail
+
+#### Browser Settings
+
+- **browser_type** (str, optional)
+  - Default: `"chromium"`
+  - Options: `"chromium"`, `"firefox"`, `"webkit"`
+  - Controls which browser engine to use
+  ```python
+  # Example: Using Firefox
+  crawler = AsyncWebCrawler(browser_type="firefox")
+  ```
+
+- **headless** (bool, optional)
+  - Default: `True`
+  - When `True`, browser runs without GUI
+  - Set to `False` for debugging
+  ```python
+  # Visible browser for debugging
+  crawler = AsyncWebCrawler(headless=False)
+  ```
+
+- **verbose** (bool, optional)
+  - Default: `False`
+  - Enables detailed logging
+  ```python
+  # Enable detailed logging
+  crawler = AsyncWebCrawler(verbose=True)
+  ```
+
+#### Cache Settings
+
+- **always_by_pass_cache** (bool, optional)
+  - Default: `False`
+  - When `True`, always fetches fresh content
+  ```python
+  # Always fetch fresh content
+  crawler = AsyncWebCrawler(always_by_pass_cache=True)
+  ```
+
+- **base_directory** (str, optional)
+  - Default: User's home directory
+  - Base path for cache storage
+  ```python
+  # Custom cache directory
+  crawler = AsyncWebCrawler(base_directory="/path/to/cache")
+  ```
+
+#### Network Settings
+
+- **proxy** (str, optional)
+  - Simple proxy URL
+  ```python
+  # Using simple proxy
+  crawler = AsyncWebCrawler(proxy="http://proxy.example.com:8080")
+  ```
+
+- **proxy_config** (Dict, optional)
+  - Advanced proxy configuration with authentication
+  ```python
+  # Advanced proxy with auth
+  crawler = AsyncWebCrawler(proxy_config={
+      "server": "http://proxy.example.com:8080",
+      "username": "user",
+      "password": "pass"
+  })
+  ```
+
+#### Browser Behavior
+
+- **sleep_on_close** (bool, optional)
+  - Default: `False`
+  - Adds delay before closing browser
+  ```python
+  # Wait before closing
+  crawler = AsyncWebCrawler(sleep_on_close=True)
+  ```
+
+#### Custom Settings
+
+- **user_agent** (str, optional)
+  - Custom user agent string
+  ```python
+  # Custom user agent
+  crawler = AsyncWebCrawler(
+      user_agent="Mozilla/5.0 (Custom Agent) Chrome/90.0"
+  )
+  ```
+
+- **headers** (Dict[str, str], optional)
+  - Custom HTTP headers
+  ```python
+  # Custom headers
+  crawler = AsyncWebCrawler(
+      headers={
+          "Accept-Language": "en-US",
+          "Custom-Header": "Value"
+      }
+  )
+  ```
+
+- **js_code** (Union[str, List[str]], optional)
+  - Default JavaScript to execute on each page
+  ```python
+  # Default JavaScript
+  crawler = AsyncWebCrawler(
+      js_code=[
+          "window.scrollTo(0, document.body.scrollHeight);",
+          "document.querySelector('.load-more').click();"
+      ]
+  )
+  ```
+
+## Methods
+
+### arun()
+
+The primary method for crawling web pages.
+
+```python
+async def arun(
+    # Required
+    url: str,                              # URL to crawl
+    
+    # Content Selection
+    css_selector: str = None,              # CSS selector for content
+    word_count_threshold: int = 10,        # Minimum words per block
+    
+    # Cache Control
+    bypass_cache: bool = False,            # Bypass cache for this request
+    
+    # Session Management
+    session_id: str = None,                # Session identifier
+    
+    # Screenshot Options
+    screenshot: bool = False,              # Take screenshot
+    screenshot_wait_for: float = None,     # Wait before screenshot
+    
+    # Content Processing
+    process_iframes: bool = False,         # Process iframe content
+    remove_overlay_elements: bool = False, # Remove popups/modals
+    
+    # Anti-Bot Settings
+    simulate_user: bool = False,           # Simulate human behavior
+    override_navigator: bool = False,      # Override navigator properties
+    magic: bool = False,                   # Enable all anti-detection
+    
+    # Content Filtering
+    excluded_tags: List[str] = None,       # HTML tags to exclude
+    exclude_external_links: bool = False,  # Remove external links
+    exclude_social_media_links: bool = False, # Remove social media links
+    
+    # JavaScript Handling
+    js_code: Union[str, List[str]] = None, # JavaScript to execute
+    wait_for: str = None,                  # Wait condition
+    
+    # Page Loading
+    page_timeout: int = 60000,            # Page load timeout (ms)
+    delay_before_return_html: float = None, # Wait before return
+    
+    # Extraction
+    extraction_strategy: ExtractionStrategy = None  # Extraction strategy
+) -> CrawlResult:
+```
+
+### Usage Examples
+
+#### Basic Crawling
+```python
+async with AsyncWebCrawler() as crawler:
+    result = await crawler.arun(url="https://example.com")
+```
+
+#### Advanced Crawling
+```python
+async with AsyncWebCrawler(
+    browser_type="firefox",
+    verbose=True,
+    headers={"Custom-Header": "Value"}
+) as crawler:
+    result = await crawler.arun(
+        url="https://example.com",
+        css_selector=".main-content",
+        word_count_threshold=20,
+        process_iframes=True,
+        magic=True,
+        wait_for="css:.dynamic-content",
+        screenshot=True
+    )
+```
+
+#### Session Management
+```python
+async with AsyncWebCrawler() as crawler:
+    # First request
+    result1 = await crawler.arun(
+        url="https://example.com/login",
+        session_id="my_session"
+    )
+    
+    # Subsequent request using same session
+    result2 = await crawler.arun(
+        url="https://example.com/protected",
+        session_id="my_session"
+    )
+```
+
+## Context Manager
+
+AsyncWebCrawler implements the async context manager protocol:
+
+```python
+async def __aenter__(self) -> 'AsyncWebCrawler':
+    # Initialize browser and resources
+    return self
+
+async def __aexit__(self, *args):
+    # Cleanup resources
+    pass
+```
+
+Always use AsyncWebCrawler with async context manager:
+```python
+async with AsyncWebCrawler() as crawler:
+    # Your crawling code here
+    pass
+```
+
+## Best Practices
+
+1. **Resource Management**
+```python
+# Always use context manager
+async with AsyncWebCrawler() as crawler:
+    # Crawler will be properly cleaned up
+    pass
+```
+
+2. **Error Handling**
+```python
+try:
+    async with AsyncWebCrawler() as crawler:
+        result = await crawler.arun(url="https://example.com")
+        if not result.success:
+            print(f"Crawl failed: {result.error_message}")
+except Exception as e:
+    print(f"Error: {str(e)}")
+```
+
+3. **Performance Optimization**
+```python
+# Enable caching for better performance
+crawler = AsyncWebCrawler(
+    always_by_pass_cache=False,
+    verbose=True
+)
+```
+
+4. **Anti-Detection**
+```python
+# Maximum stealth
+crawler = AsyncWebCrawler(
+    headless=True,
+    user_agent="Mozilla/5.0...",
+    headers={"Accept-Language": "en-US"}
+)
+result = await crawler.arun(
+    url="https://example.com",
+    magic=True,
+    simulate_user=True
+)
+```
+
+## Note on Browser Types
+
+Each browser type has its characteristics:
+
+- **chromium**: Best overall compatibility
+- **firefox**: Good for specific use cases
+- **webkit**: Lighter weight, good for basic crawling
+
+Choose based on your specific needs:
+```python
+# High compatibility
+crawler = AsyncWebCrawler(browser_type="chromium")
+
+# Memory efficient
+crawler = AsyncWebCrawler(browser_type="webkit")
+```

docs/md_v2/api/crawl-result.md

@@ -0,0 +1,301 @@
+# CrawlResult
+
+The `CrawlResult` class represents the result of a web crawling operation. It provides access to various forms of extracted content and metadata from the crawled webpage.
+
+## Class Definition
+
+```python
+class CrawlResult(BaseModel):
+    """Result of a web crawling operation."""
+    
+    # Basic Information
+    url: str                                # Crawled URL
+    success: bool                           # Whether crawl succeeded
+    status_code: Optional[int] = None       # HTTP status code
+    error_message: Optional[str] = None     # Error message if failed
+    
+    # Content
+    html: str                              # Raw HTML content
+    cleaned_html: Optional[str] = None      # Cleaned HTML
+    fit_html: Optional[str] = None          # Most relevant HTML content
+    markdown: Optional[str] = None          # HTML converted to markdown
+    fit_markdown: Optional[str] = None      # Most relevant markdown content
+    
+    # Extracted Data
+    extracted_content: Optional[str] = None  # Content from extraction strategy
+    media: Dict[str, List[Dict]] = {}       # Extracted media information
+    links: Dict[str, List[Dict]] = {}       # Extracted links
+    metadata: Optional[dict] = None         # Page metadata
+    
+    # Additional Data
+    screenshot: Optional[str] = None         # Base64 encoded screenshot
+    session_id: Optional[str] = None         # Session identifier
+    response_headers: Optional[dict] = None  # HTTP response headers
+```
+
+## Properties and Their Data Structures
+
+### Basic Information
+
+```python
+# Access basic information
+result = await crawler.arun(url="https://example.com")
+
+print(result.url)          # "https://example.com"
+print(result.success)      # True/False
+print(result.status_code)  # 200, 404, etc.
+print(result.error_message)  # Error details if failed
+```
+
+### Content Properties
+
+#### HTML Content
+```python
+# Raw HTML
+html_content = result.html
+
+# Cleaned HTML (removed ads, popups, etc.)
+clean_content = result.cleaned_html
+
+# Most relevant HTML content
+main_content = result.fit_html
+```
+
+#### Markdown Content
+```python
+# Full markdown version
+markdown_content = result.markdown
+
+# Most relevant markdown content
+main_content = result.fit_markdown
+```
+
+### Media Content
+
+The media dictionary contains organized media elements:
+
+```python
+# Structure
+media = {
+    "images": [
+        {
+            "src": str,           # Image URL
+            "alt": str,           # Alt text
+            "desc": str,          # Contextual description
+            "score": float,       # Relevance score (0-10)
+            "type": str,          # "image"
+            "width": int,         # Image width (if available)
+            "height": int,        # Image height (if available)
+            "context": str,       # Surrounding text
+            "lazy": bool          # Whether image was lazy-loaded
+        }
+    ],
+    "videos": [
+        {
+            "src": str,           # Video URL
+            "type": str,          # "video"
+            "title": str,         # Video title
+            "poster": str,        # Thumbnail URL
+            "duration": str,      # Video duration
+            "description": str    # Video description
+        }
+    ],
+    "audios": [
+        {
+            "src": str,           # Audio URL
+            "type": str,          # "audio"
+            "title": str,         # Audio title
+            "duration": str,      # Audio duration
+            "description": str    # Audio description
+        }
+    ]
+}
+
+# Example usage
+for image in result.media["images"]:
+    if image["score"] > 5:  # High-relevance images
+        print(f"High-quality image: {image['src']}")
+        print(f"Context: {image['context']}")
+```
+
+### Link Analysis
+
+The links dictionary organizes discovered links:
+
+```python
+# Structure
+links = {
+    "internal": [
+        {
+            "href": str,          # URL
+            "text": str,          # Link text
+            "title": str,         # Title attribute
+            "type": str,          # Link type (nav, content, etc.)
+            "context": str,       # Surrounding text
+            "score": float        # Relevance score
+        }
+    ],
+    "external": [
+        {
+            "href": str,          # External URL
+            "text": str,          # Link text
+            "title": str,         # Title attribute
+            "domain": str,        # Domain name
+            "type": str,          # Link type
+            "context": str        # Surrounding text
+        }
+    ]
+}
+
+# Example usage
+for link in result.links["internal"]:
+    print(f"Internal link: {link['href']}")
+    print(f"Context: {link['context']}")
+```
+
+### Metadata
+
+The metadata dictionary contains page information:
+
+```python
+# Structure
+metadata = {
+    "title": str,                # Page title
+    "description": str,          # Meta description
+    "keywords": List[str],       # Meta keywords
+    "author": str,              # Author information
+    "published_date": str,      # Publication date
+    "modified_date": str,       # Last modified date
+    "language": str,            # Page language
+    "canonical_url": str,       # Canonical URL
+    "og_data": Dict,           # Open Graph data
+    "twitter_data": Dict       # Twitter card data
+}
+
+# Example usage
+if result.metadata:
+    print(f"Title: {result.metadata['title']}")
+    print(f"Author: {result.metadata.get('author', 'Unknown')}")
+```
+
+### Extracted Content
+
+Content from extraction strategies:
+
+```python
+# For LLM or CSS extraction strategies
+if result.extracted_content:
+    structured_data = json.loads(result.extracted_content)
+    print(structured_data)
+```
+
+### Screenshot
+
+Base64 encoded screenshot:
+
+```python
+# Save screenshot if available
+if result.screenshot:
+    import base64
+    
+    # Decode and save
+    with open("screenshot.png", "wb") as f:
+        f.write(base64.b64decode(result.screenshot))
+```
+
+## Usage Examples
+
+### Basic Content Access
+```python
+async with AsyncWebCrawler() as crawler:
+    result = await crawler.arun(url="https://example.com")
+    
+    if result.success:
+        # Get clean content
+        print(result.fit_markdown)
+        
+        # Process images
+        for image in result.media["images"]:
+            if image["score"] > 7:
+                print(f"High-quality image: {image['src']}")
+```
+
+### Complete Data Processing
+```python
+async def process_webpage(url: str) -> Dict:
+    async with AsyncWebCrawler() as crawler:
+        result = await crawler.arun(url=url)
+        
+        if not result.success:
+            raise Exception(f"Crawl failed: {result.error_message}")
+        
+        return {
+            "content": result.fit_markdown,
+            "images": [
+                img for img in result.media["images"]
+                if img["score"] > 5
+            ],
+            "internal_links": [
+                link["href"] for link in result.links["internal"]
+            ],
+            "metadata": result.metadata,
+            "status": result.status_code
+        }
+```
+
+### Error Handling
+```python
+async def safe_crawl(url: str) -> Dict:
+    async with AsyncWebCrawler() as crawler:
+        try:
+            result = await crawler.arun(url=url)
+            
+            if not result.success:
+                return {
+                    "success": False,
+                    "error": result.error_message,
+                    "status": result.status_code
+                }
+            
+            return {
+                "success": True,
+                "content": result.fit_markdown,
+                "status": result.status_code
+            }
+            
+        except Exception as e:
+            return {
+                "success": False,
+                "error": str(e),
+                "status": None
+            }
+```
+
+## Best Practices
+
+1. **Always Check Success**
+```python
+if not result.success:
+    print(f"Error: {result.error_message}")
+    return
+```
+
+2. **Use fit_markdown for Articles**
+```python
+# Better for article content
+content = result.fit_markdown if result.fit_markdown else result.markdown
+```
+
+3. **Filter Media by Score**
+```python
+relevant_images = [
+    img for img in result.media["images"]
+    if img["score"] > 5
+]
+```
+
+4. **Handle Missing Data**
+```python
+metadata = result.metadata or {}
+title = metadata.get('title', 'Unknown Title')
+```

docs/md_v2/api/parameters.md

@@ -0,0 +1,35 @@
+# Parameter Reference Table
+
+| File Name | Parameter Name | Code Usage | Strategy/Class | Description |
+|-----------|---------------|------------|----------------|-------------|
+| async_crawler_strategy.py | user_agent | `kwargs.get("user_agent")` | AsyncPlaywrightCrawlerStrategy | User agent string for browser identification |
+| async_crawler_strategy.py | proxy | `kwargs.get("proxy")` | AsyncPlaywrightCrawlerStrategy | Proxy server configuration for network requests |
+| async_crawler_strategy.py | proxy_config | `kwargs.get("proxy_config")` | AsyncPlaywrightCrawlerStrategy | Detailed proxy configuration including auth |
+| async_crawler_strategy.py | headless | `kwargs.get("headless", True)` | AsyncPlaywrightCrawlerStrategy | Whether to run browser in headless mode |
+| async_crawler_strategy.py | browser_type | `kwargs.get("browser_type", "chromium")` | AsyncPlaywrightCrawlerStrategy | Type of browser to use (chromium/firefox/webkit) |
+| async_crawler_strategy.py | headers | `kwargs.get("headers", {})` | AsyncPlaywrightCrawlerStrategy | Custom HTTP headers for requests |
+| async_crawler_strategy.py | verbose | `kwargs.get("verbose", False)` | AsyncPlaywrightCrawlerStrategy | Enable detailed logging output |
+| async_crawler_strategy.py | sleep_on_close | `kwargs.get("sleep_on_close", False)` | AsyncPlaywrightCrawlerStrategy | Add delay before closing browser |
+| async_crawler_strategy.py | use_managed_browser | `kwargs.get("use_managed_browser", False)` | AsyncPlaywrightCrawlerStrategy | Use managed browser instance |
+| async_crawler_strategy.py | user_data_dir | `kwargs.get("user_data_dir", None)` | AsyncPlaywrightCrawlerStrategy | Custom directory for browser profile data |
+| async_crawler_strategy.py | session_id | `kwargs.get("session_id")` | AsyncPlaywrightCrawlerStrategy | Unique identifier for browser session |
+| async_crawler_strategy.py | override_navigator | `kwargs.get("override_navigator", False)` | AsyncPlaywrightCrawlerStrategy | Override browser navigator properties |
+| async_crawler_strategy.py | simulate_user | `kwargs.get("simulate_user", False)` | AsyncPlaywrightCrawlerStrategy | Simulate human-like behavior |
+| async_crawler_strategy.py | magic | `kwargs.get("magic", False)` | AsyncPlaywrightCrawlerStrategy | Enable advanced anti-detection features |
+| async_crawler_strategy.py | log_console | `kwargs.get("log_console", False)` | AsyncPlaywrightCrawlerStrategy | Log browser console messages |
+| async_crawler_strategy.py | js_only | `kwargs.get("js_only", False)` | AsyncPlaywrightCrawlerStrategy | Only execute JavaScript without page load |
+| async_crawler_strategy.py | page_timeout | `kwargs.get("page_timeout", 60000)` | AsyncPlaywrightCrawlerStrategy | Timeout for page load in milliseconds |
+| async_crawler_strategy.py | ignore_body_visibility | `kwargs.get("ignore_body_visibility", True)` | AsyncPlaywrightCrawlerStrategy | Process page even if body is hidden |
+| async_crawler_strategy.py | js_code | `kwargs.get("js_code", kwargs.get("js", self.js_code))` | AsyncPlaywrightCrawlerStrategy | Custom JavaScript code to execute |
+| async_crawler_strategy.py | wait_for | `kwargs.get("wait_for")` | AsyncPlaywrightCrawlerStrategy | Wait for specific element/condition |
+| async_crawler_strategy.py | process_iframes | `kwargs.get("process_iframes", False)` | AsyncPlaywrightCrawlerStrategy | Extract content from iframes |
+| async_crawler_strategy.py | delay_before_return_html | `kwargs.get("delay_before_return_html")` | AsyncPlaywrightCrawlerStrategy | Additional delay before returning HTML |
+| async_crawler_strategy.py | remove_overlay_elements | `kwargs.get("remove_overlay_elements", False)` | AsyncPlaywrightCrawlerStrategy | Remove pop-ups and overlay elements |
+| async_crawler_strategy.py | screenshot | `kwargs.get("screenshot")` | AsyncPlaywrightCrawlerStrategy | Take page screenshot |
+| async_crawler_strategy.py | screenshot_wait_for | `kwargs.get("screenshot_wait_for")` | AsyncPlaywrightCrawlerStrategy | Wait before taking screenshot |
+| async_crawler_strategy.py | semaphore_count | `kwargs.get("semaphore_count", 5)` | AsyncPlaywrightCrawlerStrategy | Concurrent request limit |
+| async_webcrawler.py | verbose | `kwargs.get("verbose", False)` | AsyncWebCrawler | Enable detailed logging |
+| async_webcrawler.py | warmup | `kwargs.get("warmup", True)` | AsyncWebCrawler | Initialize crawler with warmup request |
+| async_webcrawler.py | session_id | `kwargs.get("session_id", None)` | AsyncWebCrawler | Session identifier for browser reuse |
+| async_webcrawler.py | only_text | `kwargs.get("only_text", False)` | AsyncWebCrawler | Extract only text content |
+| async_webcrawler.py | bypass_cache | `kwargs.get("bypass_cache", False)` | AsyncWebCrawler | Skip cache and force fresh crawl |

docs/md_v2/api/strategies.md

@@ -0,0 +1,255 @@
+# Extraction & Chunking Strategies API
+
+This documentation covers the API reference for extraction and chunking strategies in Crawl4AI.
+
+## Extraction Strategies
+
+All extraction strategies inherit from the base `ExtractionStrategy` class and implement two key methods:
+- `extract(url: str, html: str) -> List[Dict[str, Any]]`
+- `run(url: str, sections: List[str]) -> List[Dict[str, Any]]`
+
+### LLMExtractionStrategy
+
+Used for extracting structured data using Language Models.
+
+```python
+LLMExtractionStrategy(
+    # Required Parameters
+    provider: str = DEFAULT_PROVIDER,     # LLM provider (e.g., "ollama/llama2")
+    api_token: Optional[str] = None,      # API token
+    
+    # Extraction Configuration
+    instruction: str = None,              # Custom extraction instruction
+    schema: Dict = None,                  # Pydantic model schema for structured data
+    extraction_type: str = "block",       # "block" or "schema"
+    
+    # Chunking Parameters
+    chunk_token_threshold: int = 4000,    # Maximum tokens per chunk
+    overlap_rate: float = 0.1,           # Overlap between chunks
+    word_token_rate: float = 0.75,       # Word to token conversion rate
+    apply_chunking: bool = True,         # Enable/disable chunking
+    
+    # API Configuration
+    base_url: str = None,                # Base URL for API
+    extra_args: Dict = {},               # Additional provider arguments
+    verbose: bool = False                # Enable verbose logging
+)
+```
+
+### CosineStrategy
+
+Used for content similarity-based extraction and clustering.
+
+```python
+CosineStrategy(
+    # Content Filtering
+    semantic_filter: str = None,        # Topic/keyword filter
+    word_count_threshold: int = 10,     # Minimum words per cluster
+    sim_threshold: float = 0.3,         # Similarity threshold
+    
+    # Clustering Parameters
+    max_dist: float = 0.2,             # Maximum cluster distance
+    linkage_method: str = 'ward',       # Clustering method
+    top_k: int = 3,                    # Top clusters to return
+    
+    # Model Configuration
+    model_name: str = 'sentence-transformers/all-MiniLM-L6-v2',  # Embedding model
+    
+    verbose: bool = False              # Enable verbose logging
+)
+```
+
+### JsonCssExtractionStrategy
+
+Used for CSS selector-based structured data extraction.
+
+```python
+JsonCssExtractionStrategy(
+    schema: Dict[str, Any],    # Extraction schema
+    verbose: bool = False      # Enable verbose logging
+)
+
+# Schema Structure
+schema = {
+    "name": str,              # Schema name
+    "baseSelector": str,      # Base CSS selector
+    "fields": [               # List of fields to extract
+        {
+            "name": str,      # Field name
+            "selector": str,  # CSS selector
+            "type": str,     # Field type: "text", "attribute", "html", "regex"
+            "attribute": str, # For type="attribute"
+            "pattern": str,  # For type="regex"
+            "transform": str, # Optional: "lowercase", "uppercase", "strip"
+            "default": Any    # Default value if extraction fails
+        }
+    ]
+}
+```
+
+## Chunking Strategies
+
+All chunking strategies inherit from `ChunkingStrategy` and implement the `chunk(text: str) -> list` method.
+
+### RegexChunking
+
+Splits text based on regex patterns.
+
+```python
+RegexChunking(
+    patterns: List[str] = None  # Regex patterns for splitting
+                               # Default: [r'\n\n']
+)
+```
+
+### SlidingWindowChunking
+
+Creates overlapping chunks with a sliding window approach.
+
+```python
+SlidingWindowChunking(
+    window_size: int = 100,    # Window size in words
+    step: int = 50             # Step size between windows
+)
+```
+
+### OverlappingWindowChunking
+
+Creates chunks with specified overlap.
+
+```python
+OverlappingWindowChunking(
+    window_size: int = 1000,   # Chunk size in words
+    overlap: int = 100         # Overlap size in words
+)
+```
+
+## Usage Examples
+
+### LLM Extraction
+
+```python
+from pydantic import BaseModel
+from crawl4ai.extraction_strategy import LLMExtractionStrategy
+
+# Define schema
+class Article(BaseModel):
+    title: str
+    content: str
+    author: str
+
+# Create strategy
+strategy = LLMExtractionStrategy(
+    provider="ollama/llama2",
+    schema=Article.schema(),
+    instruction="Extract article details"
+)
+
+# Use with crawler
+result = await crawler.arun(
+    url="https://example.com/article",
+    extraction_strategy=strategy
+)
+
+# Access extracted data
+data = json.loads(result.extracted_content)
+```
+
+### CSS Extraction
+
+```python
+from crawl4ai.extraction_strategy import JsonCssExtractionStrategy
+
+# Define schema
+schema = {
+    "name": "Product List",
+    "baseSelector": ".product-card",
+    "fields": [
+        {
+            "name": "title",
+            "selector": "h2.title",
+            "type": "text"
+        },
+        {
+            "name": "price",
+            "selector": ".price",
+            "type": "text",
+            "transform": "strip"
+        },
+        {
+            "name": "image",
+            "selector": "img",
+            "type": "attribute",
+            "attribute": "src"
+        }
+    ]
+}
+
+# Create and use strategy
+strategy = JsonCssExtractionStrategy(schema)
+result = await crawler.arun(
+    url="https://example.com/products",
+    extraction_strategy=strategy
+)
+```
+
+### Content Chunking
+
+```python
+from crawl4ai.chunking_strategy import OverlappingWindowChunking
+
+# Create chunking strategy
+chunker = OverlappingWindowChunking(
+    window_size=500,  # 500 words per chunk
+    overlap=50        # 50 words overlap
+)
+
+# Use with extraction strategy
+strategy = LLMExtractionStrategy(
+    provider="ollama/llama2",
+    chunking_strategy=chunker
+)
+
+result = await crawler.arun(
+    url="https://example.com/long-article",
+    extraction_strategy=strategy
+)
+```
+
+## Best Practices
+
+1. **Choose the Right Strategy**
+   - Use `LLMExtractionStrategy` for complex, unstructured content
+   - Use `JsonCssExtractionStrategy` for well-structured HTML
+   - Use `CosineStrategy` for content similarity and clustering
+
+2. **Optimize Chunking**
+   ```python
+   # For long documents
+   strategy = LLMExtractionStrategy(
+       chunk_token_threshold=2000,  # Smaller chunks
+       overlap_rate=0.1           # 10% overlap
+   )
+   ```
+
+3. **Handle Errors**
+   ```python
+   try:
+       result = await crawler.arun(
+           url="https://example.com",
+           extraction_strategy=strategy
+       )
+       if result.success:
+           content = json.loads(result.extracted_content)
+   except Exception as e:
+       print(f"Extraction failed: {e}")
+   ```
+
+4. **Monitor Performance**
+   ```python
+   strategy = CosineStrategy(
+       verbose=True,  # Enable logging
+       word_count_threshold=20,  # Filter short content
+       top_k=5  # Limit results
+   )
+   ```

docs/md_v2/assets/styles.css

@@ -150,4 +150,11 @@ strong,
 .tab-content pre {
     margin: 0;
     max-height: 300px; overflow: auto; border:none;
+}
+
+ol li::before {
+    content: counters(item, ".") ". ";
+    counter-increment: item;
+    /* float: left; */
+    /* padding-right: 5px; */
 }

docs/md_v2/basic/browser-config.md

@@ -0,0 +1,208 @@
+# Browser Configuration
+
+Crawl4AI supports multiple browser engines and offers extensive configuration options for browser behavior.
+
+## Browser Types
+
+Choose from three browser engines:
+
+```python
+# Chromium (default)
+async with AsyncWebCrawler(browser_type="chromium") as crawler:
+    result = await crawler.arun(url="https://example.com")
+
+# Firefox
+async with AsyncWebCrawler(browser_type="firefox") as crawler:
+    result = await crawler.arun(url="https://example.com")
+
+# WebKit
+async with AsyncWebCrawler(browser_type="webkit") as crawler:
+    result = await crawler.arun(url="https://example.com")
+```
+
+## Basic Configuration
+
+Common browser settings:
+
+```python
+async with AsyncWebCrawler(
+    headless=True,           # Run in headless mode (no GUI)
+    verbose=True,           # Enable detailed logging
+    sleep_on_close=False    # No delay when closing browser
+) as crawler:
+    result = await crawler.arun(url="https://example.com")
+```
+
+## Identity Management
+
+Control how your crawler appears to websites:
+
+```python
+# Custom user agent
+async with AsyncWebCrawler(
+    user_agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36"
+) as crawler:
+    result = await crawler.arun(url="https://example.com")
+
+# Custom headers
+headers = {
+    "Accept-Language": "en-US,en;q=0.9",
+    "Cache-Control": "no-cache"
+}
+async with AsyncWebCrawler(headers=headers) as crawler:
+    result = await crawler.arun(url="https://example.com")
+```
+
+## Screenshot Capabilities
+
+Capture page screenshots with enhanced error handling:
+
+```python
+result = await crawler.arun(
+    url="https://example.com",
+    screenshot=True,                # Enable screenshot
+    screenshot_wait_for=2.0        # Wait 2 seconds before capture
+)
+
+if result.screenshot:  # Base64 encoded image
+    import base64
+    with open("screenshot.png", "wb") as f:
+        f.write(base64.b64decode(result.screenshot))
+```
+
+## Timeouts and Waiting
+
+Control page loading behavior:
+
+```python
+result = await crawler.arun(
+    url="https://example.com",
+    page_timeout=60000,              # Page load timeout (ms)
+    delay_before_return_html=2.0,    # Wait before content capture
+    wait_for="css:.dynamic-content"  # Wait for specific element
+)
+```
+
+## JavaScript Execution
+
+Execute custom JavaScript before crawling:
+
+```python
+# Single JavaScript command
+result = await crawler.arun(
+    url="https://example.com",
+    js_code="window.scrollTo(0, document.body.scrollHeight);"
+)
+
+# Multiple commands
+js_commands = [
+    "window.scrollTo(0, document.body.scrollHeight);",
+    "document.querySelector('.load-more').click();"
+]
+result = await crawler.arun(
+    url="https://example.com",
+    js_code=js_commands
+)
+```
+
+## Proxy Configuration
+
+Use proxies for enhanced access:
+
+```python
+# Simple proxy
+async with AsyncWebCrawler(
+    proxy="http://proxy.example.com:8080"
+) as crawler:
+    result = await crawler.arun(url="https://example.com")
+
+# Proxy with authentication
+proxy_config = {
+    "server": "http://proxy.example.com:8080",
+    "username": "user",
+    "password": "pass"
+}
+async with AsyncWebCrawler(proxy_config=proxy_config) as crawler:
+    result = await crawler.arun(url="https://example.com")
+```
+
+## Anti-Detection Features
+
+Enable stealth features to avoid bot detection:
+
+```python
+result = await crawler.arun(
+    url="https://example.com",
+    simulate_user=True,        # Simulate human behavior
+    override_navigator=True,   # Mask automation signals
+    magic=True               # Enable all anti-detection features
+)
+```
+
+## Handling Dynamic Content
+
+Configure browser to handle dynamic content:
+
+```python
+# Wait for dynamic content
+result = await crawler.arun(
+    url="https://example.com",
+    wait_for="js:() => document.querySelector('.content').children.length > 10",
+    process_iframes=True     # Process iframe content
+)
+
+# Handle lazy-loaded images
+result = await crawler.arun(
+    url="https://example.com",
+    js_code="window.scrollTo(0, document.body.scrollHeight);",
+    delay_before_return_html=2.0  # Wait for images to load
+)
+```
+
+## Comprehensive Example
+
+Here's how to combine various browser configurations:
+
+```python
+async def crawl_with_advanced_config(url: str):
+    async with AsyncWebCrawler(
+        # Browser setup
+        browser_type="chromium",
+        headless=True,
+        verbose=True,
+        
+        # Identity
+        user_agent="Custom User Agent",
+        headers={"Accept-Language": "en-US"},
+        
+        # Proxy setup
+        proxy="http://proxy.example.com:8080"
+    ) as crawler:
+        result = await crawler.arun(
+            url=url,
+            # Content handling
+            process_iframes=True,
+            screenshot=True,
+            
+            # Timing
+            page_timeout=60000,
+            delay_before_return_html=2.0,
+            
+            # Anti-detection
+            magic=True,
+            simulate_user=True,
+            
+            # Dynamic content
+            js_code=[
+                "window.scrollTo(0, document.body.scrollHeight);",
+                "document.querySelector('.load-more')?.click();"
+            ],
+            wait_for="css:.dynamic-content"
+        )
+        
+        return {
+            "content": result.markdown,
+            "screenshot": result.screenshot,
+            "success": result.success
+        }
+```