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tiagozip/cap
privacy-first, open-source and self-hosted CAPTCHA alternative with PoW and instrumentation challenges.
About tiagozip/cap
tiagozip/cap is an open-source project on GitHub, mainly written in JavaScript. privacy-first, open-source and self-hosted CAPTCHA alternative with PoW and instrumentation challenges. It currently holds 8,330 stars and 650 forks with 6 open issues, and was last pushed on 2026-11-10 (repository created 2025-01-11).
Project Overview
Git Homed tracks it on the Today's Trending board, currently at rank #97 with 32 new stars today.
GitHub Repository Details
README
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.
GitHub Stars & Activity
8,330Stars
650Forks
6Open issues
JavaScriptLanguage
GitHub Popularity
GitHub stars8,330
Forks650
Open issues6
Primary languageJavaScript
LicenseNOASSERTION
Stars gained today32
Created2025-01-11
Last pushed2026-11-10
Trending History
Daily boardrank #97 · ▲ 32 stars
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