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Open Source CAPTCHA & Bot Protection Tools using Golang

A curated collection of the best open source tools for distinguishing humans from bots (CAPTCHA) and preventing spam. using Golang.

Private Captcha

GDPR-compliant bot protection without user friction

Stars
167
Forks
5
Last commit
2 days ago

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:

reCAPTCHA

Friendly Captcha

Invisible bot protection that respects user privacy

Stars
24
Forks
10
Last commit
17 days ago

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:

reCAPTCHA

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Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit