Simple negative captcha for Rails

Simple captcha image generator gem

This is a Captcha gem for ruby. It drawing captcha image with C code so it no dependencies.

Solve Media CAPTCHA Replacement

Description of TinyCaptcha.

Simple captcha

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

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...

Block repetetive requests from logged_in users and shows captcha.

create captcha for api based project

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

A simple and custom captcha for Rails3.

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

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

Implements view helpers for the ASIRRA CAPTCHA system for Rails-based websites

This plugin adds helpers for the YinXiangMa CAPTCHA API

A very simple rack captcha middleware via captchator.com API

anti-captcha is a Ruby library for recognize captcha on anti-captcha.com

This is mt first gem

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