crawl4ai
Crawl4AI is an open-source web crawler that turns any website into clean Markdown for AI agents and data pipelines.
What it is good for
- Turning web pages into clean text an AI can read
- Extracting structured data from websites into JSON
- Collecting many pages from a site in one run
- Giving an AI agent live access to web content
At a glance
- Who it is for
- Setup
- Requires programming
Level 5 of 5. You need to write code to use it.
- Cost
- Free tier plus paid plans
- Type
- Framework or SDK
- Tasks
- Works with
- Claude Code, Codex, Cursor, OpenCode, Docker
Momentum
- Rank this week
- #49 in builder tools
- Best rank
- #31 week 41, 2026
- Stars gained last week
- +489
- GitHub stars
- 86,759
GitHub numbers as of Nov 2, 2026. Updated weekly.
Ranking history
- #49 in week 44, 2026
- #40 in week 43, 2026
- #40 in week 42, 2026
- #31 in week 41, 2026
- #35 in week 40, 2026
Official links
Setup steps are on the official pages. We do not repeat them here, since they change.
Questions
- Is crawl4ai free?
- It has a free plan and paid plans, according to its own description.
- Do I need to know how to code to use crawl4ai?
- Yes. You need to write code to use it.
- What does crawl4ai work with?
- According to its own documentation, it works with Claude Code, Codex, Cursor, OpenCode, and Docker.
- What is crawl4ai good for?
- Turning web pages into clean text an AI can read, extracting structured data from websites into JSON, collecting many pages from a site in one run, and giving an AI agent live access to web content.
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