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cap/docs/index.md
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2025-04-13 09:58:38 +01:00

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---
# https://vitepress.dev/reference/default-theme-home-page
layout: home
hero:
name: "Cap"
text: "A modern, lightning-quick PoW captcha"
tagline: "Cap is a lightweight, modern open-source CAPTCHA alternative using SHA-256 proof-of-work"
image:
src: /logo.png
alt: VitePress
actions:
- theme: brand
text: Quickstart & docs
link: /guide
- theme: alt
text: Demo
link: https://cap-starter.glitch.me/
- theme: alt
text: GitHub
link: https://github.com/tiagorangel1/cap
features:
- icon: ⚡️
title: 250x smaller than hCaptcha
details: Cap's widget library is extremely small, only 12kb minified and brotli'd.
- icon: 🔒️
title: Private
details: Cap's usage of proof-of-work eliminates the need for any tracking, fingerprinting or data collection.
- icon: 🌈
title: Fully customizable
details: Cap is self-hostable so you can customize both the backend & frontend — or you can just use CSS variables
- icon: 🤖
title: PoW-based
details: Cap uses proof-of-work instead of complex puzzles, making it easier for humans and harder for bots
- icon: 🧩
title: Standalone mode
details: Cap offers a standalone mode with Docker, allowing you to use it with languages other than JS.
- icon: 💨
title: Invisible mode
details: Cap can run invisibly in the background using a simple JS API.
- icon: ☁️
title: Floating mode
details: Floating mode keeps your CAPTCHA hidden until it's needed
- icon: 🌳
title: Fully FOSS
details: Completely open source under AGPL-3.0, with no premium versions.
---