reCAPTCHA is a CAPTCHA system that enables web hosts to distinguish between human and automated access to websites. The latest version aims to have as little user interaction as possible, using machine learning to analyse a user's actions and determine if they are a bot, and...
- - reCAPTCHA is the most popular Web-based alternative to Keypic.
- - reCAPTCHA is the most popular free alternative to Keypic.
UniqPin is a free for non-commercial use service which destiny improve ability of interfaces detect a human or a computer operate with it.
- - UniqPin is the most popular Self-Hosted alternative to Keypic.
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.
- - Solve Media's CAPTCHA TYPE-IN™ is the most popular commercial alternative to Keypic.
Solve Media's CAPTCHA TYPE-IN™ Features
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."
Confident Technologies provides free CAPTCHA security software called Confident CAPTCHA, a picture CAPTCHA that stops spam and bots. Download our free CAPTCHA security software today.Discontinued
Domain no longer exist