Simple captcha

This is mt first gem

jQuery slide captcha system with jQuery & jQuery UI for Rails 3

Simple captcha image generator gem

Solve Media CAPTCHA Replacement

A captcha that uses images instead of garbled text

This plugin adds helpers for the YinXiangMa CAPTCHA API

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.

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

Merb plugin that provides resource access rate limits and captcha'ing

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

ALTCHA is a free, open-source CAPTCHA alternative that protects your website from spam and abuse

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

Block repetetive requests from logged_in users and shows captcha.

My version of SimpleCaptcha

Ruby wrapper for Yandex.Cleanweb

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.

0-9 arası sayıları kullanarak random olarak 2 sayı seçer ve yine random olarak toplama ya da çarpma yaparak sonucu verir.