Open Source CAPTCHA & Bot Protection Tools using Renovate
A curated collection of the best open source tools for distinguishing humans from bots (CAPTCHA) and preventing spam. using Renovate.
Privacy-first proof-of-work CAPTCHA without user friction
Stars
2,489Last commit
11 months agoLicense
AGPL-3.0
Privacy-focused proof-of-work CAPTCHA system that silently protects websites without tracking users or requiring image solving. Drop-in replacement for reCAPTCHA.
Open Source Alternative to:
GDPR-compliant bot protection without user friction
Stars
193Last commit
7 hours agoLicense
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:
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