Open-source, frictionless CAPTCHA and bot defense. A privacy-focused alternative to reCAPTCHA and hCaptcha.
security spam privacy recaptcha captcha spam-protection antispam spam-detection ddos-mitigation bot-detection proof-of-work captcha-alternative self-host ddos-protection invisible-captcha human-verification hcaptcha procaptcha frictionless-captcha bot-defense
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Updated
Mar 30, 2026 - TypeScript