Add max_pages parameter to all deep crawling strategies to limit total pages crawled.
Add score_threshold parameter to BFS/DFS strategies for quality control.
Remove legacy parameter handling in AsyncWebCrawler.
Improve error handling and logging in crawl strategies.
BREAKING CHANGE: Removed support for legacy parameters in AsyncWebCrawler.run_many()
Adds a new BrowserProfiler class that provides comprehensive management of browser profiles for identity-based crawling. Features include:
- Interactive profile creation and management
- Profile listing, retrieval, and deletion
- Guided console interface
- Migration of profile management from ManagedBrowser
- New example script for identity-based browsing
ALSO:
- Updates logging format in AsyncWebCrawler
- Removes content filter from hello_world example
- Relaxes httpx version constraint
BREAKING CHANGE: Profile management methods from ManagedBrowser are now deprecated and delegate to BrowserProfiler
* fix: Update export of URLPatternFilter
* chore: Add dependancy for cchardet in requirements
* docs: Update example for deep crawl in release note for v0.5
* Docs: update the example for memory dispatcher
* docs: updated example for crawl strategies
* Refactor: Removed wrapping in if __name__==main block since this is a markdown file.
* chore: removed cchardet from dependancy list, since unclecode is planning to remove it
* docs: updated the example for proxy rotation to a working example
* feat: Introduced ProxyConfig param
* Add tutorial for deep crawl & update contributor list for bug fixes in feb alpha-1
* chore: update and test new dependancies
* feat:Make PyPDF2 a conditional dependancy
* updated tutorial and release note for v0.5
* docs: update docs for deep crawl, and fix a typo in docker-deployment markdown filename
* refactor: 1. Deprecate markdown_v2 2. Make markdown backward compatible to behave as a string when needed. 3. Fix LlmConfig usage in cli 4. Deprecate markdown_v2 in cli 5. Update AsyncWebCrawler for changes in CrawlResult
* fix: Bug in serialisation of markdown in acache_url
* Refactor: Added deprecation errors for fit_html and fit_markdown directly on markdown. Now access them via markdown
* fix: remove deprecated markdown_v2 from docker
* Refactor: remove deprecated fit_markdown and fit_html from result
* refactor: fix cache retrieval for markdown as a string
* chore: update all docs, examples and tests with deprecation announcements for markdown_v2, fit_html, fit_markdown
This major release adds deep crawling capabilities, memory-adaptive dispatcher,
multiple crawling strategies, Docker deployment, and a new CLI. It also includes
significant improvements to proxy handling, PDF processing, and LLM integration.
BREAKING CHANGES:
- Add memory-adaptive dispatcher as default for arun_many()
- Move max_depth to CrawlerRunConfig
- Replace ScrapingMode enum with strategy pattern
- Update BrowserContext API
- Make model fields optional with defaults
- Remove content_filter parameter from CrawlerRunConfig
- Remove synchronous WebCrawler and old CLI
- Update Docker deployment configuration
- Replace FastFilterChain with FilterChain
- Change license to Apache 2.0 with attribution clause
* feature: Add LlmConfig to easily configure and pass LLM configs to different strategies
* pulled in next branch and resolved conflicts
* feat: Add gemini and deepseek providers. Make ignore_cache in llm content filter to true by default to avoid confusions
* Refactor: Update LlmConfig in LLMExtractionStrategy class and deprecate old params
* updated tests, docs and readme
* spelling change in prompt
* gpt-4o-mini support
* Remove leading Y before here
* prompt spell correction
* (Docs) Fix numbered list end-of-line formatting
Added the missing "two spaces" to add a line break
* fix: access downloads_path through browser_config in _handle_download method - Fixes#585
* crawl
* fix: https://github.com/unclecode/crawl4ai/issues/592
* fix: https://github.com/unclecode/crawl4ai/issues/583
* Docs update: https://github.com/unclecode/crawl4ai/issues/649
* fix: https://github.com/unclecode/crawl4ai/issues/570
* Docs: updated example for content-selection to reflect new changes in yc newsfeed css
* Refactor: Removed old filters and replaced with optimised filters
* fix:Fixed imports as per the new names of filters
* Tests: For deep crawl filters
* Refactor: Remove old scorers and replace with optimised ones: Fix imports forall filters and scorers.
* fix: awaiting on filters that are async in nature eg: content relevance and seo filters
* fix: https://github.com/unclecode/crawl4ai/issues/592
* fix: https://github.com/unclecode/crawl4ai/issues/715
---------
Co-authored-by: DarshanTank <darshan.tank@gnani.ai>
Co-authored-by: Tuhin Mallick <tuhin.mllk@gmail.com>
Co-authored-by: Serhat Soydan <ssoydan@gmail.com>
Co-authored-by: cardit1 <maneesh@cardit.in>
Co-authored-by: Tautik Agrahari <tautikagrahari@gmail.com>
Remove content filter related code and parameters as part of simplifying the crawler configuration. This includes:
- Removing ContentFilter import and related classes
- Removing content_filter parameter from CrawlerRunConfig
- Cleaning up LLMExtractionStrategy constructor parameters
BREAKING CHANGE: Removed content_filter parameter from CrawlerRunConfig. Users should migrate to using extraction strategies for content filtering.
Implements a full-featured CLI for Crawl4AI with the following capabilities:
- Basic and advanced web crawling
- Configuration management via YAML/JSON files
- Multiple extraction strategies (CSS, XPath, LLM)
- Content filtering and optimization
- Interactive Q&A capabilities
- Various output formats
- Comprehensive documentation and examples
Also includes:
- Home directory setup for configuration and cache
- Environment variable support for API tokens
- Test suite for CLI functionality
Implements a new proxy rotation system with the following changes:
- Add ProxyRotationStrategy abstract base class
- Add RoundRobinProxyStrategy concrete implementation
- Integrate proxy rotation with AsyncWebCrawler
- Add proxy_rotation_strategy parameter to CrawlerRunConfig
- Add example script demonstrating proxy rotation usage
- Remove deprecated synchronous WebCrawler code
- Clean up rate limiting documentation
BREAKING CHANGE: Removed synchronous WebCrawler support and related rate limiting configurations
Enhanced markdown formatting, fixed list indentation, and improved readability across multiple API documentation files:
- arun.md
- arun_many.md
- async-webcrawler.md
- parameters.md
Changes include:
- Consistent list formatting and indentation
- Better spacing between sections
- Clearer separation of content blocks
- Fixed quotation marks and code block formatting
- Restructure multi-URL crawling documentation with better formatting and examples
- Update code examples to use new API syntax (arun_many)
- Add detailed parameter explanations for RateLimiter and Dispatchers
- Enhance CSS styling for better documentation readability
- Fix outdated method calls in feature demo script
BREAKING CHANGE: Updated dispatcher.run_urls() to crawler.arun_many() in examples
Renames the final_url field to redirected_url across all components to maintain
consistent terminology throughout the codebase. This change affects:
- AsyncCrawlResponse model
- AsyncPlaywrightCrawlerStrategy
- Documentation and examples
No functional changes, purely naming consistency improvement.
Implements dynamic proxy rotation functionality with authentication support and IP verification. Updates include:
- Added proxy rotation demo in features example
- Updated proxy configuration handling in BrowserManager
- Added proxy rotation documentation
- Updated README with new proxy rotation feature
- Bumped version to 0.4.3b2
This change enables users to dynamically switch between proxies and verify IP addresses for each request.
Prepare the v0.4.3 beta release with major feature additions and improvements:
- Add JsonXPathExtractionStrategy and LLMContentFilter to exports
- Update version to 0.4.3b1
- Improve documentation for dispatchers and markdown generation
- Update development status to Beta
- Reorganize changelog format
BREAKING CHANGE: Memory threshold in MemoryAdaptiveDispatcher increased to 90% and SemaphoreDispatcher parameter renamed to max_session_permit
Add support for checking and respecting robots.txt rules before crawling websites:
- Implement RobotsParser class with SQLite caching
- Add check_robots_txt parameter to CrawlerRunConfig
- Integrate robots.txt checking in AsyncWebCrawler
- Update documentation with robots.txt compliance examples
- Add tests for robot parser functionality
The cache uses WAL mode for better concurrency and has a default TTL of 7 days.
Add proxy_config parameter to CrawlerRunConfig to support dynamic proxy configuration per crawl request. This enables users to specify different proxy settings for each crawl operation without modifying the browser config.
- Added proxy_config parameter to CrawlerRunConfig
- Updated BrowserManager to apply proxy settings from CrawlerRunConfig
- Updated proxy-security documentation with new usage examples
Adds new static method generate_schema() to JsonElementExtractionStrategy classes
that can automatically generate extraction schemas using LLM (OpenAI or Ollama).
This provides a convenient way to bootstrap extraction schemas while maintaining
the performance benefits of selector-based extraction.
Key changes:
- Added generate_schema() static method to base extraction strategy
- Added support for both CSS and XPath schema generation
- Updated documentation with examples and best practices
- Added new prompt templates for schema generation
Add capability to track and return final URLs after redirects in crawler responses. This enhancement helps users understand the actual destination of crawled URLs after any redirections.
Changes include:
- Added final_url tracking in AsyncPlaywrightCrawlerStrategy
- Added redirected_url field to CrawlResult model
- Updated AsyncWebCrawler to properly handle and store redirect URLs
- Fixed typo in documentation signature
Add comprehensive documentation for the new streaming mode feature in arun_many():
- Update arun_many() API docs to reflect streaming return type
- Add streaming examples in quickstart and multi-url guides
- Document stream parameter in configuration classes
- Add clone() helper method documentation for configs
This change improves documentation for processing large numbers of URLs efficiently.
Add new LLMContentFilter class that uses LLMs to generate high-quality markdown content:
- Implement intelligent content filtering with customizable instructions
- Add chunk processing for handling large documents
- Support parallel processing of content chunks
- Include caching mechanism for filtered results
- Add usage tracking and statistics
- Update documentation with examples and use cases
Also includes minor changes:
- Disable Pydantic warnings in __init__.py
- Add new prompt template for content filtering
Replace the ScrapingMode enum with a proper strategy pattern implementation for content scraping.
This change introduces:
- New ContentScrapingStrategy abstract base class
- Concrete WebScrapingStrategy and LXMLWebScrapingStrategy implementations
- New Pydantic models for structured scraping results
- Updated documentation reflecting the new strategy-based approach
BREAKING CHANGE: ScrapingMode enum has been removed. Users should now use ContentScrapingStrategy implementations instead.
Adds a new ScrapingMode enum to allow switching between BeautifulSoup and LXML parsing.
LXML mode offers 10-20x better performance for large HTML documents.
Key changes:
- Added ScrapingMode enum with BEAUTIFULSOUP and LXML options
- Implemented LXMLWebScrapingStrategy class
- Added LXML-based metadata extraction
- Updated documentation with scraping mode usage and performance considerations
- Added cssselect dependency
BREAKING CHANGE: None
Reorganize dispatcher functionality into separate components:
- Create dedicated dispatcher classes (MemoryAdaptive, Semaphore)
- Add RateLimiter for smart request throttling
- Implement CrawlerMonitor for real-time progress tracking
- Move dispatcher config from CrawlerRunConfig to separate classes
BREAKING CHANGE: Dispatcher configuration moved from CrawlerRunConfig to dedicated dispatcher classes. Users need to update their configuration approach for multi-URL crawling.
Update all documentation URLs from crawl4ai.com/mkdocs to docs.crawl4ai.com across README, examples, and documentation files. This change reflects the new documentation hosting domain.
Also add todo/ directory to .gitignore.
Update all documentation URLs from crawl4ai.com/mkdocs to docs.crawl4ai.com
Improve badges styling and layout in documentation
Increase code font size in documentation CSS
BREAKING CHANGE: Documentation URLs have changed from crawl4ai.com/mkdocs to docs.crawl4ai.com
Reorganize documentation into core/advanced/extraction sections for better navigation.
Update terminal theme styles and add rich library for better CLI output.
Remove redundant tutorial files and consolidate content into core sections.
Add personal story to index page for project context.
BREAKING CHANGE: Documentation structure has been significantly reorganized
- Added examples for Amazon product data extraction methods
- Updated configuration options and enhance documentation
- Minor refactoring for improved performance and readability
- Cleaned up version control settings.
Standardizes parameter naming convention across the codebase by renaming browser_config to the more concise config in AsyncWebCrawler constructor.
Updates all documentation examples and internal usages to reflect the new parameter name for consistency.
Also improves hook execution by adding url/response parameters to goto hooks and fixes parameter ordering in before_return_html hook.
- Add llm.txt generator
- Added SSL certificate extraction in AsyncWebCrawler.
- Introduced new content filters and chunking strategies for more robust data extraction.
- Updated documentation.
- Fix crawler text mode for improved performance; cover missing `srcset` and `data_srcset` attributes in image tags.
- Introduced Managed Browsers for enhanced crawling experience.
- Updated documentation for clearer navigation on configuration.
- Changed 'text_only' to 'text_mode' in configuration and methods.
- Improved performance and relevance in content filtering strategies.
- Added detailed CrawlerRunConfig parameters documentation.
- Introduced plans for real-time event-driven crawling.
- Updated async logger default level to DEBUG for better insights.
- Improved structure and readability in configuration file.
- Enhanced documentation on future capabilities in new blog entries.
- Introduced new configuration classes: BrowserConfig and CrawlerRunConfig.
- Refactored AsyncWebCrawler to leverage the new configuration system for cleaner parameter management.
- Updated AsyncPlaywrightCrawlerStrategy for better flexibility and reduced legacy parameters.
- Improved error handling with detailed context extraction during exceptions.
- Enhanced overall maintainability and usability of the web crawler.
- Introduced new async crawl strategy with session management.
- Added BrowserManager for improved browser management.
- Enhanced documentation, focusing on storage state and usage examples.
- Improved error handling and logging for sessions.
- Added JavaScript snippets for customizing navigator properties.
### New Features:
- **Text-Only Mode**: Added support for text-only crawling by disabling images, JavaScript, GPU, and other non-essential features.
- **Light Mode**: Optimized browser settings to reduce resource usage and improve efficiency during crawling.
- **Dynamic Viewport Adjustment**: Automatically adjusts viewport dimensions based on content size, ensuring accurate rendering and scaling.
- **Full Page Scanning**: Introduced a feature to scroll and capture dynamic content for pages with infinite scroll or lazy-loading elements.
- **Session Management**: Added `create_session` method for creating and managing browser sessions with unique IDs.
### Improvements:
- Unified viewport handling across contexts by dynamically setting dimensions using `self.viewport_width` and `self.viewport_height`.
- Enhanced logging and error handling for viewport adjustments, page scanning, and content evaluation.
- Reduced resource usage with additional browser flags for both `light_mode` and `text_only` configurations.
- Improved handling of cookies, headers, and proxies in session creation.
### Refactoring:
- Removed hardcoded viewport dimensions and replaced them with dynamic configurations.
- Cleaned up unused and commented-out code for better readability and maintainability.
- Introduced defaults for frequently used parameters like `delay_before_return_html`.
### Fixes:
- Resolved potential inconsistencies in viewport handling.
- Improved robustness of content loading and dynamic adjustments to avoid failures and timeouts.
### Docs Update:
- Updated schema usage in `quickstart_async.py` example:
- Changed `OpenAIModelFee.schema()` to `OpenAIModelFee.model_json_schema()` for compatibility.
- Enhanced LLM extraction instruction documentation.
This commit introduces significant enhancements to improve efficiency, flexibility, and reliability of the crawler strategy.
- Introduced the PruningContentFilter for better content relevance.
- Implemented comprehensive unit tests for verification of functionality.
- Enhanced existing BM25ContentFilter tests for edge case coverage.
- Updated documentation to include usage examples for new filter.
- Updated version to 0.3.743
- Improved ManagedBrowser configuration with dynamic host/port
- Implemented fast HTML formatting in web crawler
- Enhanced markdown generation with a new generator class
- Improved sanitization and utility functions
- Added contributor details and pull request acknowledgments
- Updated documentation for clearer usage scenarios
- Adjusted tests to reflect class name changes
feat(requirements): update requirements.txt to include snowballstemmer
fix(version_manager): correct version parsing to use __version__.__version__
feat(main): introduce chunking strategy and content filter in CrawlRequest model
feat(content_filter): enhance BM25 algorithm with priority tag scoring for improved content relevance
feat(logger): implement new async logger engine replacing print statements throughout library
fix(database): resolve version-related deadlock and circular lock issues in database operations
docs(docker): expand Docker deployment documentation with usage instructions for Docker Compose
