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Open Source Projects tagged "Invisible Captcha"

A curated collection of the best open source projects tagged "Invisible Captcha". Each listing includes a website screenshot along with a detailed review of its features.

Decentralized CAPTCHA for enhanced web security
  • Stars

    303
  • Last commit

    1 day ago
  • License

    Apache-2.0
A blockchain-based CAPTCHA solution offering improved security, user experience, and resistance to bot attacks for web applications.

Open Source Alternative to:

GDPR-compliant bot protection without user friction
  • Stars

    199
  • Last commit

    10 hours ago
  • License

    Unknown
Privacy-first CAPTCHA service that blocks bots while keeping forms accessible. No puzzles, no tracking, no cookies - just invisible cryptographic protection.

Open Source Alternative to: