Open Source CAPTCHA & Bot Protection Tools using Esbuild
A curated collection of the best open source tools for distinguishing humans from bots (CAPTCHA) and preventing spam. using Esbuild.
Decentralized CAPTCHA for enhanced web security
Stars
300Last commit
1 day agoLicense
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
194Last commit
12 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:
Invisible bot protection that respects user privacy
Stars
35Last commit
22 days agoLicense
MPL-2.0
Privacy-compliant CAPTCHA alternative using proof-of-work technology. Protects websites from bots and spam without user interaction or data tracking.
Open Source Alternative to:
Openlane – Open-source, developer-first platform for automated compliance, risk management, and built-in Trust Center.
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