head to head · open source
Crawl4AI vs xxl-crawler
Crawl4AI has 83,782 GitHub stars, 8,664 forks, 188 open issues and last shipped 3 days ago. xxl-crawler has 758 stars, 318 forks, 7 open issues and last shipped 1 months ago. Crawl4AI leads on adoption by 10,953% (83,782 vs 758 stars). Crawl4AI is written in Python under Apache-2.0; xxl-crawler is written in Java under Apache-2.0. Crawl4AI has attracted 10% as many forks as stars, xxl-crawler 42%. Crawl4AI was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Crawl4AI | xxl-crawler | |
|---|---|---|
| GitHub stars | ★ 84K | ★ 758 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Java |
| Last push | 2026-09-16 | 2026-08-08 |
| Forks | ⑂ 8.7K | ⑂ 318 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Crawl4AI if
- You weight community size — 84K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick xxl-crawler if
- You want the xxl-crawler feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and xxl-crawler fits your workflow better
About Crawl4AI
Crawl4AI is an open source web crawler and scraper designed to prepare website content for large language model (LLM) workflows. It lives in the Python ecosystem and targets data extraction for RAG, agents, and AI pipelines. Unlike many tools that require API keys or paid subscriptions, Crawl4AI provides direct, self hosted access to web content with output structured specifically for LLM consumption.
read the full Crawl4AI overview →
About xxl-crawler
XXL CRAWLER is a lightweight, open source Java web crawler framework that lets a developer start a multi threaded crawler with a single line of code and map collected page data into Java objects through annotations, built for Java teams that need to gather web data without adopting a heavyweight scraping platform.
read the full xxl-crawler overview →
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Frequently asked questions
Is Crawl4AI or xxl-crawler more popular?
Crawl4AI has 83,782 GitHub stars and xxl-crawler has 758. Crawl4AI has the larger community by that measure.
Are Crawl4AI and xxl-crawler free?
Both are open source. Crawl4AI is licensed under Apache-2.0 and xxl-crawler under Apache-2.0. Neither carries a licence fee.
What is the difference between Crawl4AI and xxl-crawler?
Crawl4AI is written in Python and xxl-crawler in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Crawl4AI or xxl-crawler?
Choose Crawl4AI if you want the larger community (83,782 stars) or its Apache-2.0 licence terms. Choose xxl-crawler if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.