Simple lib to generate a math_captcha to prevent spammers in form. Supports localization.

Forked from https://github.com/kares/simple_captcha

Description of RailsCaptcha.

Anti-spam protection for your website

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Ruby port of VIT AutoCaptcha

HumanDetector is a friendly logic captcha for Rails the doesn't require any external system dependency (e.g. external captcha API connections). It uses a simple question that any 7 or more years old human can understand, but that a spambot will not be able to answer. This Gem supports Ruby v1.9.2...