Cap Captcha is described as 'Lightweight, modern open-source CAPTCHA alternative designed using SHA-256 proof-of-work and JS instrumentation' and is a Anti-Spam tool in the security & privacy category. There are more than 25 alternatives to Cap Captcha for a variety of platforms, including Web-based, SaaS, Self-Hosted, Wordpress and JavaScript apps. The best Cap Captcha alternative is Anubis. It's not free, so if you're looking for a free alternative, you could try Anubis or reCAPTCHA. Other great apps like Cap Captcha are Procaptcha, ALTCHA, PrivateStater and IronWall.
Friendly Captcha is a leading cybersecurity company with a clear mission: to reliably defend against modern bot attacks and spam while complying with the GDPR and other privacy regulations. As Germany's largest CAPTCHA provider, Friendly Captcha uses innovative technology to...
Germany
EU
TrustCaptcha is a privacy-first, invisible CAPTCHA that protects your website from bots and spam—without disrupting your users.
GermanyEU
Mollom is a freemium web service to get rid of spam, unwanted content and fake users on your Drupal, Wordpress and Joomla site or blog.
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...
Canada
GeeTest protects your websites, mobile apps and APIs from bad bot attacks with zero user friction. Its self-learning defense model based on Graph Convolutional Networks and massive volumes of biometric data collected in the past 7 years allows GeeTest to identify and mitigate...
China
Pakistan
NoBot CAPTCHA API is a developer-friendly alternative to Google reCAPTCHA that helps prevent automated bot traffic without compromising user privacy.
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.
Belgium
Poland
United States
