BladeCAPTCHA: Accessible, private, and cookie-free security for your site

An innovative CAPTCHA, 100% self-hosted, protecting your website without sending data to third parties or using cookies.

Unlike invasive CAPTCHAs that track your users and rely on third parties, BladeCAPTCHA uses a lightweight, efficient proof-of-work mechanism to verify human interaction without compromising privacy.

No cookies. No third-party scripts. No external databases. Just open-source code, easy to integrate, and accessible for everyone.

Key Features

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Privacy

We do not use cookies or store personal data. Compliant with GDPR, CCPA and more.

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Accessibility

Compatible with assistive technologies. Inclusive and user-friendly design.

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Self-hosted

Generation and validation entirely on your server. No intermediaries.

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Dual mode

Automatic integration or manual verification as needed.

Performance

Web Workers prevent blocking and improve the user experience.

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Open source

Adaptable, extensible, and free from closed dependencies.

Interactive Demo

▶️ View source code of this implementation

How does BladeCAPTCHA compare?

A quick comparison with other popular solutions:

Feature BladeCAPTCHA reCAPTCHA hCaptcha
GDPR/CCPA Compliance ⚠️
Self-hosted
No personal data
Accessibility ⚠️
Open source
Free without limits ⚠️ ⚠️

▶️ View full comparison table

Support the project

BladeCAPTCHA is a 100% free and self-funded project. If you found it useful and want to help cover hosting costs, improvements, and support, you can buy me a coffee . Any contribution is welcome!

Buy a coffee