What is ALTCHA?
ALTCHA is an open-source CAPTCHA alternative. Proof-of-work based verification. No cookies, no tracking. Privacy-friendly by design. Self-hosted for full control. Invisible to users. Easy integration. MIT licensed.
Key Features
- βOpen source
- βProof-of-work
- βNo tracking
- βNo cookies
- βSelf-hosted
- βPrivacy-friendly
- βInvisible
- βEasy integration
- βMIT license
- βNo third-party
- βLightweight
- βAccessible
π Privacy & Data Protection
ALTCHA is fully self-hosted with no tracking. For privacy-first CAPTCHA, ALTCHA delivers open-source freedom.
Best For
Bot protectionForm protectionPrivacy CAPTCHASelf-hosted CAPTCHAGDPR CAPTCHAreCAPTCHA alternative
π° Pricing
ALTCHA is free and open-source under MIT license.
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