This gem enable to use Captchme. Anti spam, Monetize captcha and Audience qualification

A simple and fast image captcha generator that uses opencv and memcached.

Simple captcha

This is mt first gem

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

Anti-spam protection for your website

Solve Media CAPTCHA Replacement

A captcha that uses images instead of garbled text

Define questions and answers in a YAML file and validate your models with a single line of code. No more captchas or other stupid tricks.

Generates Text Catpchas, that are 'nice' by my own personal definition!

Repackaged visualCaptcha's backend service, including translation and minor modification. Mainly for private use. Everything still belongs to original author: emotionLoop. ...

SimpleCaptcha is available to be used with Rails 3 + 4 or above and also it provides the backward compatibility with previous versions of Rails.

This version include two important page 'Contact' and 'Register' with the 'Math-Captcha' method submit for prevent hacker attack.

Russian Post tracking toolset, consisting tracking form bot (since Russian Post is too retarded for normal API) and captcha solver/recognizer.

This is a gem wrapper for tiny captcha in C with no dependencies.

SoaringSimpleCaptcha is available to be used with Rails 3 or above and also it provides the backward compatibility with previous versions of Rails.

这是一个验证码生成器。基于rucaptcha。本人只是将他的源码拉下来。为我的网站进行适配。因为我不使用sesion.id

SimpleCaptcha is available to be used with Rails 3 or above and also it provides the backward compatibility with previous versions of Rails.

This library can help you create a captcha in your terminal application, which may be damaged by a large influx of requests.