tiagozip / cap
git clone https://github.com/tiagozip/cap.git
standalone@3.1.13 · 29d ago
privacy-first, open-source and self-hosted CAPTCHA alternative with PoW and instrumentation challenges.
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Star history (as recorded here)
LanguageJavaScript
License—
Created2025-01-11 (1y ago)
Last push1d ago
Watchers26
OwnerUser
GitHub topics
Links
- GitHub: github.com/tiagozip/cap
- Homepage: https://trycap.dev
- Releases · Issues · Hacker News mentions
README excerpt
a privacy-first and self-hosted CAPTCHA. read the docs or try the demo ## what's cap? cap is a self-hosted and privacy-first captcha alternative that doesn't force your users to click on traffic lights. there are no puzzles, no tracking, and no third parties watching your visitors. instead, the user's browser quietly solves a few small challenges in the background, such as gpu-resistant proof-of-work and instrumentation, which can also be configured to stop autonomous AI agents from using up your resources. it has no dependencies by default, is 200x smaller than hCaptcha, and you can run it with docker, on workers or on railway. it's already used in production by large companies like bunny.net and adguard. ### license cap is licensed under apache 2.0.