head to head · open source
Crawl4AI vs BrowserKitten
Crawl4AI has 87,004 GitHub stars, 9,056 forks, 188 open issues and last shipped 3 days ago. BrowserKitten has 2,381 stars, 10 forks, 2 open issues and last shipped 2 days ago. Crawl4AI leads on adoption by 3,554% (87,004 vs 2,381 stars). Crawl4AI is written in Python under Apache-2.0; BrowserKitten is written in JavaScript under MIT. Crawl4AI has attracted 10% as many forks as stars, BrowserKitten 0%. BrowserKitten was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (llm), so they are genuine substitutes rather than adjacent tools.
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 | BrowserKitten | |
|---|---|---|
| GitHub stars | ★ 87K | ★ 2.4K |
| License | Apache-2.0 | MIT |
| Written in | Python | JavaScript |
| Last push | 2026-11-04 | 2026-11-05 |
| Forks | ⑂ 9.1K | ⑂ 10 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Crawl4AI if
- You weight community size — 87K 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 BrowserKitten if
- You want the BrowserKitten feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and BrowserKitten fits your workflow better
About Crawl4AI
🚀🤖 Crawl4AI: Open source LLM Friendly Web Crawler & Scraper. 🚀 Crawl4AI Cloud API — Closed Beta (Launching Soon) Reliable, large scale web extraction, now built to be drastically more cost effective than any of the existing solutions. 👉 Apply here for early access We’ll be onboarding in phases and working closely with early users. Limited slots. Crawl4AI turns the web into clean, LLM ready Markdown for RAG, agents, and data pipelines. Fast, controllable, battle tested by a 50k+ star community. ✨ Check out latest update v0.9.3 ✨ New in v0.9.3 : Security release. Closes five coordinated disclosure advisories…
read the full Crawl4AI overview →
About BrowserKitten
Browser Kitten An agent for the browser you already use. Read signed in pages, take action, create files, and follow up locally. English · 简体中文 Quick start · Configuration · Documentation · Current limits · Contribute · Issues Browser Kitten is an MIT licensed Chrome MV3 extension with an agent in the side panel. It works with your existing browser session and keeps conversations, workspace files, and follow up tasks on this computer. Model and other provider requests use the services you configure. Current source version: 1.2.0 · Load unpacked · No build step for installation. What you can do See the actual…
read the full BrowserKitten overview →
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Frequently asked questions
Is Crawl4AI or BrowserKitten more popular?
Crawl4AI has 87,004 GitHub stars and BrowserKitten has 2,381. Crawl4AI has the larger community by that measure.
Are Crawl4AI and BrowserKitten free?
Both are open source. Crawl4AI is licensed under Apache-2.0 and BrowserKitten under MIT. Neither carries a licence fee.
What is the difference between Crawl4AI and BrowserKitten?
Crawl4AI is written in Python and BrowserKitten in JavaScript. 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 BrowserKitten?
Choose Crawl4AI if you want the larger community (87,004 stars) or its Apache-2.0 licence terms. Choose BrowserKitten if its feature set, stack or MIT licence fits better. Both are self-hostable.