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@altcha-org

ALTCHA

GDPR compliant, self-hosted CAPTCHA alternative.
README.md

ALTCHA

ALTCHA is free, open-source CAPTCHA alternative that protects your website from spam and abuse.

It uses a proof-of-work mechanism to protect your website, APIs, and online services from spam and unwanted content. Unlike other CAPTCHA solutions, ALTCHA is free, open-source and self-hosted, does not use cookies nor fingerprinting, does not track users, and is fully compliant with GDPR.

Get Started

Refer to the documentation.

Pinned

  1. altcha altcha Public

    GDPR compliant, self-hosted CAPTCHA alternative. Now with API and a Spam Filter!

    Svelte 160 6

  2. altcha-lib altcha-lib Public

    A JavaScript library for creating and verifying ALTCHA challenges.

    TypeScript 7 3

  3. wordpress-plugin wordpress-plugin Public

    ALTCHA for WordPress plugin

    PHP 3

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