Free reCAPTCHA Alternatives
hCaptcha is designed to solve the most labor intensive problem in machine learning: labeling massive amounts of data in a timely, affordable, and reliable way.
- - hCaptcha is the most popular Web-based alternative to reCAPTCHA.
- - hCaptcha is the most popular free alternative to reCAPTCHA.
Opinions about hCaptcha as a Alternative to reCAPTCHA
A negative captcha has the exact same purpose as your run-of-the-mill image captcha: To keep bots from submitting forms. Image ("positive") captchas do this by implementing a step which only humans can do, but bots cannot: read jumbled characters from an image.
- - Negative Captcha is the most popular Self-Hosted alternative to reCAPTCHA.
- - Negative Captcha is the most popular Open Source alternative to reCAPTCHA.
Negative Captcha FeaturesDiscontinued
The last update is from 2018.
Friendly Captcha is a tool for preventing spam on your website.
- - Friendly Captcha is the most popular SaaS alternative to reCAPTCHA.
Friendly Captcha Features
Comments about Friendly Captcha as a Alternative to reCAPTCHA
The most secure and privacy-aware solution on the market3
Better in terms of usability and privacy0
mosparo is the modern solution for protecting your online forms from spam. The protection method is quite simple: mosparo blocks spam using rules matching the form’s data. The detection method is comparable to an e-mail spam filter.
Turnstile is Cloudflare's smart CAPTCHA alternative. It automatically chooses from a rotating suite of non-intrusive browser challenges based on telemetry and client behavior exhibited during a session.
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...
Opinions about MTcaptcha as a Alternative to reCAPTCHA
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.Discontinued
"The Mollom content moderation service is no longer available … as of 2 April 2018."
InputGuard is the privacy friendly alternative to reCAPTCHA or other captcha tools.
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.