cap
cap is Free, open-source and self-hosted CAPTCHA alternative to reCAPTCHA. Privacy-first and powered by proof-of-work and instrumentation challenges. - tiagozip/cap. It is ranked #957 on the Dev Radar, in Security, first seen 3 days ago and shared in 1 post (1k views).
GitHub - tiagozip/cap: Free, open-source and self-hosted CAPTCHA alternative to reCAPTCHA. Privacy-first and powered by proof-of-work and instrumentation challenges. · GitHub Skip to content Navigation Menu Sign in Appearance settings Search / Sign in Sign up Appearance settings You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session. Dismiss alert {{ message }} tiagozip / cap Public Notifications You must be signed in to change notification settings Fork 582 Star 7.8k main…
What people said about cap on X
网站最近加载变慢？可能不是你服务器的问题，是验证码太肥了。 GitHub 上这个 Cap，直接换了个思路：不用图片验证码，改成 SHA-256 工作量证明，验证在本地完成。 几个点挺舒服： 1️⃣ 核心库才约 20KB，还零第三方依赖 2️⃣ 不追踪、不存用户数据，也不加载图片 3️⃣ Docker 一行就能部署，接进现有网站也很轻 4️⃣ 验证逻辑放后台算，前端少背一坨东西 如果你的网站验证码脚本本身就挺重，这个可以拿来对比测试一下。 🔗 https://github.com/tiagozip/cap
— @bkdgiffug, 3 days ago · 4 likes · see the post
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cap in numbers
- Rank on the Dev Radar: #957 of 2143
- Shared in 1 post by 1 account: @bkdgiffug
- 1k views on those posts
- First seen 3 days ago, last shared 3 days ago
- Pricing seen by Jev: open source
- Market: Security
FAQ
What is cap?
Free, open-source and self-hosted CAPTCHA alternative to reCAPTCHA. Privacy-first and powered by proof-of-work and instrumentation challenges. - tiagozip/cap It was first shared on X 3 days ago and is ranked #957 on the Dev Radar.
Is cap free?
It is open source.
Who shared cap?
1 account on X, including @bkdgiffug, in 1 post totalling 1k views.
Every post is read and classified by Jev (TypeSafe): what it is, which market it belongs to, and whether the link is a real tool. 18.9k posts from 4.9k X accounts over the last 21 days, 2.1k tools, 12 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-21 06:12 UTC. Full method.