reCAPTCHA is described as 'Free service that protects your site from spam and abuse, using risk analysis techniques to tell humans and bots apart' and is a very popular Anti-Spam tool in the security & privacy category. There are more than 25 alternatives to reCAPTCHA, not only websites but also apps for a variety of platforms, including SaaS, Self-Hosted, PHP and JavaScript apps. The best reCAPTCHA alternative is Cap Captcha, which is both free and Open Source. Other great sites and apps similar to reCAPTCHA are Anubis, hCaptcha, Procaptcha and Cloudflare Turnstile.
MTCaptcha is a smart captcha service that prioritizes privacy and accessibility. It offers an adaptive invisible noCaptcha that is easy for humans but hard for bots, making verification frictionless. MTCaptcha is GDPR and WCAG compliant, ensuring that your data is never sold or...
TrustCaptcha is a privacy-first, invisible CAPTCHA that protects your website from bots and spam—without disrupting your users.
conCaptcha is a self-hosted captcha which is faster, more user-friendly and more customizable than other captchas - available for PHP and ASP.NET websites. Users no longer have to read any annoying text images, solve difficult math equations or play any puzzle games.
AuthKong is a smart captcha service designed to protect websites from spam and abuse while ensuring real users can pass through effortlessly. It offers a more user-friendly and effective alternative to traditional captcha systems like reCAPTCHA, featuring easy-to-use slider and...
UniqPin is a free for non-commercial use service which destiny improve ability of interfaces detect a human or a computer operate with it.
A zero database architecture, powered by a proprietary hybrid in-memory indexing engine algorithm, that enables CAPTCHA authentication to be performed using minimal data bits against server memory.
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