Browser automation
Crawl4AI
A popular tool for collecting web data for AI.
Popularity
★ 77k
Last update
July 2026
License / pricing
Apache-2.0
Category
Browser automation
What it does
Crawl4AI is a popular and free web crawler that collects data from websites and converts it into AI-readable Markdown format. It's an excellent resource for anyone looking to gather structured web content for training or informing AI models.
Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.
Screenshots & visuals
Before you start
- Setup difficultyEasy to start
- Command lineRequired
- API keyNot required
- Sends data onlineYes
Judged automatically from the project's own metadata. Always confirm on the official page.
Crawl4AI FAQ
- Is Crawl4AI free?
- Yes. It runs on your own machine, so there is no usage-based cost either.
- Do I need to install anything or write code to use Crawl4AI?
- This is a library meant to be used from code. It is not a standalone app.
- Does Crawl4AI work on a phone?
- No. It needs a computer.
- Can I use Crawl4AI commercially?
- The licence is Apache-2.0, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.