kitio.aiAdded Oct 28, 2026
Crawl4AI
FreeOpen-source crawler that outputs LLM-ready markdown
What is Crawl4AI?
Crawl4AI is an open-source Python web crawler designed to produce clean markdown and structured data for language models and RAG pipelines. It is one of the most starred scraping projects on GitHub.
It runs a headless browser, handles JavaScript, sessions and proxies, and can crawl many pages in parallel. Extraction can use CSS selectors or an LLM with a schema, and content filters strip boilerplate. It can be run as a library, a Docker server or through an MCP integration, all for free.
Features
- Markdown output for LLMs
- Async parallel crawling
- LLM-based extraction
- Docker server
- Content filtering
Tags
Releases
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Organization
Unclecode
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Free
- Paid options from
- 100% free
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Pros and cons
Pros
- Free and self-hosted
- Fast async crawling
- Very active project
Cons
- Requires Python skills
- You manage proxies and scaling
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Q&A
What is Crawl4AI?
Crawl4AI is an open-source Python web crawler designed to produce clean markdown and structured data for language models and RAG pipelines. It is one of the most starred scraping projects on GitHub.
How much does Crawl4AI cost?
Crawl4AI is 100% free.
Is there a free version of Crawl4AI?
Yes. Crawl4AI is completely free to use.
What are the main features of Crawl4AI?
Markdown output for LLMs, Async parallel crawling, LLM-based extraction, Docker server, Content filtering.
Who makes Crawl4AI?
Crawl4AI is made by Unclecode.
What are the best alternatives to Crawl4AI?
Popular alternatives include Firecrawl, Albumentations, CEBRA.