Cloudflare Turnstile is a free, privacy-preserving CAPTCHA alternative that helps protect websites from bots and abuse. It uses non-intrusive challenges and does not require user interaction in many cases.. There are currently 2 open-source alternatives to Cloudflare Turnstile, with a combined total of 2.6k GitHub stars. The most common language among these projects is TypeScript.
Showing 2 open-source alternatives
A self-hosted, privacy-first CAPTCHA alternative using proof-of-work to protect websites and APIs from spam without tracking.
An Angular library providing an interactive 3D dice-based CAPTCHA with realistic physics simulation.
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