Open source captcha. Switch from reCAPTCHA in minutes.

Open source captcha. Free, Public API Access a fully open, cost-free CAPTCHA service at api. While the open-source version’s proof-of-work mechanism offers basic protection, ALTCHA Sentinel delivers enhanced security for mission-critical deployments. Multilingual Aug 7, 2025 · Which are the best open-source Captcha projects? This list will help you: SafeLine, undetected-chromedriver, buster, nopecha-extension, cap, mCaptcha, and base64Captcha. Self-Hosting Option Host OpenCaptcha on your own infrastructure for total control over uptime, security, and scalability. Switch from reCAPTCHA in minutes. Open Source Captcha vs ALTCHA Sentinel The open-source widget and integration libraries provide free integration of ALTCHA for websites, apps, and services. . Please see the Self-Hosting section. Unlike other solutions, ALTCHA is free, open-source and self-hosted, does not use cookies nor fingerprinting, does not track users, and is compliant with data-privacy regulations and The modern, open-source CAPTCHA Lightweight, self-hosted, privacy-friendly, and designed to put you first. Free, open-source Captcha alternative ALTCHA uses a proof-of-work mechanism to protect your website, APIs, and online services from spam and unwanted content. opencaptcha. The source code is available on GitHub. io without needing API keys or facing usage limits. zgleyo wctyb ftg nrjfzx qzorl iiey rfnownm sybxiqwp covmsw kuen