altcha-org/altcha
GDPR, WCAG 2.2 AA, and EAA compliant, self-hosted CAPTCHA alternative with PoW mechanism.
GitHub repository with 2,305 stars and 110 forks.
Language: TypeScript
Topics: antispam, captcha, captcha-alternative, ddos-mitigation, ddos-protection, hcaptcha, proof-of-work, recaptcha, spam-api, spam-detection