head to head · open source
Crawl4AI vs ArrowDL
Crawl4AI has 83,782 GitHub stars, 8,664 forks, 188 open issues and last shipped 3 days ago. ArrowDL has 851 stars, 41 forks, 7 open issues and last shipped 5 months ago. Crawl4AI leads on adoption by 9,745% (83,782 vs 851 stars). Crawl4AI is written in Python under Apache-2.0; ArrowDL is written in C++ under LGPL-3.0. Crawl4AI has attracted 10% as many forks as stars, ArrowDL 5%. 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 | ArrowDL | |
|---|---|---|
| GitHub stars | ★ 84K | ★ 851 |
| License | Apache-2.0 | LGPL-3.0 |
| Written in | Python | C++ |
| Last push | 2026-09-16 | 2026-05-04 |
| Forks | ⑂ 8.7K | ⑂ 41 |
| 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 ArrowDL if
- You want the ArrowDL feature set and don't need the biggest community
- You prefer the LGPL-3.0 license terms
- Your stack matches C++
- You evaluated both and ArrowDL 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 ArrowDL
ArrowDL (Arrow Downloader) is a free, open source, standalone download manager for Windows, macOS and Linux, built in C++ with the Qt framework and aimed at anyone who needs to capture, queue and batch download files, media streams and torrents without depending on a browser's built in downloader.
read the full ArrowDL overview →
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Frequently asked questions
Is Crawl4AI or ArrowDL more popular?
Crawl4AI has 83,782 GitHub stars and ArrowDL has 851. Crawl4AI has the larger community by that measure.
Are Crawl4AI and ArrowDL free?
Both are open source. Crawl4AI is licensed under Apache-2.0 and ArrowDL under LGPL-3.0. Neither carries a licence fee.
What is the difference between Crawl4AI and ArrowDL?
Crawl4AI is written in Python and ArrowDL in C++. 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 ArrowDL?
Choose Crawl4AI if you want the larger community (83,782 stars) or its Apache-2.0 licence terms. Choose ArrowDL if its feature set, stack or LGPL-3.0 licence fits better. Both are self-hostable.