Captcha library which uses imagemagick to create captchas

RubyGem package for visualCaptcha's backend service

Tencent Cloud Ruby SDK is the official software development kit, which allows Ruby developers to write software that makes use of Tencent Cloud service CAPTCHA.

SimpleCaptcha 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.

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.

Simple negative captcha for Rails

Use Turnstile by Cloudflare to perform captcha validation in your Rails app

Simple negative captcha for Rails

API to interact with BrandCAPTCHA http://www.pontamedia.com/en/brandcaptcha/

A captcha solver (only for easy ones) gem

Captcha generator for rails

Simple gem to add captcha or negative captcha to your Rails 3 application

A Google-style captcha for enterprise Rails apps

Despamilator is a plugin based spam detector designed for use on your web forms borne out of two annoyances: Spam being submitted in my web forms and CAPTCHAS being intrusive. Despamilator will apply some commonly used heuristics from the world of anti-spam to help you decide whether your users a...

A Google-style captcha for enterprise Rails apps

Simple captcha based on plain text questions.

Display and verify arcaptcha service captcha

Submit captcha images and retrieve the text as a string.

Captcha form Jike API