21 Free CAPTCHA Sources
Here is a collection of free CAPTCHA scripts and services than you can easily integrate into your website using PHP or JavaScript: 1. PHP CAPTCHA Library for reCAPTC ... read more
captcha
jQuery Fancy Draggable Captcha
By cody 10 Comments
Here is a jQuery example for a captcha in a registration form. In order to pass the “Are you human” test, the user has to drag the numbers from 1 to 6 in ... read more