Open Source CAPTCHA & Bot Protection Tools using ClickHouse
A curated collection of the best open source tools for distinguishing humans from bots (CAPTCHA) and preventing spam. using ClickHouse.
GDPR-compliant bot protection without user friction
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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:
Docmost – Open-source wiki software with real-time collaboration, diagrams, AI, SSO, RBAC permissions and more.
Docmost