Self-Hosted reCAPTCHA Alternatives
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.
- - mosparo is the most popular Self-Hosted alternative to reCAPTCHA.
- - mosparo is the most popular Open Source 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 FeaturesDiscontinued
The last update is from 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.
Easy to use - Nothing stupid your visitors have to type before the form submits.
Comments about phpformmailer as a Alternative to reCAPTCHA
It is not a captcha functionality0
It is not a captcha functionality.4