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| Cap |
A modern, lightning-quick PoW captcha |
Cap is the modern open-source ReCAPTCHA alternative designed for speed. FOSS, lightweight, private and secure. |
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VitePress |
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Quickstart & docs |
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250x smaller than hCaptcha |
Cap is lightning fast, so your pages load instantly and users don't wait around |
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Private & GDPR compliant |
No more tracking or data collection. Cap is GDPR compliant and keeps your users' data private |
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Fully customizable |
Cap is self-hostable so you can customize both the backend & frontend — or you can just use CSS variables |
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PoW-based |
Cap uses PoW instead of frustrating image puzzles, making it easier for humans and harder for bots |
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Headless mode |
Need silent protection? Cap can run invisibly in the background without any user interface |
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Floating mode |
The floating mode keeps your CAPTCHA hidden until it's needed, creating a smoother experience |
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Truly free |
Completely open source under AGPL-3.0. No hidden costs, no premium features, no surprises and completely FOSS |
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Made for humans, not bots |
Cap's web component & server-side library are super easy to integrate into your website |
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Tiago Rangel