SimpleCaptcha - A CAPTCHA framework for JavaSimpleCaptcha is a Java library for generating CAPTCHA challenge/answer pairs. SimpleCaptcha is intended to be easy to implement and use sensible defaults, while providing easily-accesssible hooks for customization. Example implementations are provided in J2EE and Grails. Some sample CAPTCHA images which were generated by SimpleCaptcha: Visually-impaired users can be given audio CAPTCHAs: Audio Ex
