reCAPTCHA Alternatives
reCAPTCHA is described as 'CAPTCHA system that enables web hosts to distinguish between human and automated access to websites' and is a very popular website in the security & privacy category. There are more than 10 alternatives to reCAPTCHA, not only websites but also apps for a variety of platforms, including Self-Hosted solutions, SaaS, PHP and JavaScript. The best alternative is hCaptcha, which is free. Other great sites and apps similar to reCAPTCHA are Friendly Captcha, MTcaptcha, Solve Media's CAPTCHA TYPE-IN™ and Mollom.
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.
- Freemium • Proprietary
- Online
- Software as a Service (SaaS)
Friendly Captcha is a tool for preventing spam on your website.
Friendly Captcha vs reCAPTCHA opinions
The most secure and privacy-aware solution on the market
Better in terms of usability and privacy
Enterprise Captcha solutions.
Solve Media's CAPTCHA TYPE-IN ads are an easy plug-in solution that saves your users time while making your site more secure and more profitable. Instead of struggling with difficult puzzles, users enter a simple brand message or security phrase.
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."
No screenshots yetvisualCaptcha is a configurable captcha solution, focusing on accessibility & simplicity, whilst maintaining security. It's also localizable and free, open-source, and we encourage customizations per site.
Discontinued
As from Dec 26, 2016: Please note visualCaptcha is no longer actively developed. It still works and should continue to, but it won't be improved by the initial team anymore. ...Source: https://github.com/emotionLoop/visualCaptcha/blob/master/README.md
visualCaptcha vs reCAPTCHA opinions
Free, open-source, self-hosted.
GeeTest protects your websites, mobile apps and APIs from bad bot attacks with zero user friction.
Open-source implementation of server-side spam filtering of blog comments and forum posts.
No screenshots yetUniqPin is a free for non-commercial use service which destiny improve ability of interfaces detect a human or a computer operate with it.
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.
No screenshots yet