Rails extension for Cloudflare's Turnstile CAPTCHA alternative. This gem should work with Rails 6.x and 7.x, and with Faraday 1.x and 2.x.

Drop in feedback engine with customizable fields, and captcha available

Ruby package for easy integration with the API of 2captcha captcha solving service to bypass recaptcha, hcaptcha, funcaptcha, geetest and solve any other captchas.

A Google-style captcha for enterprise Rails apps

A captcha verification approach for Rails apps, directly integrated into ActiveRecord’s validation mechanism and providing helpers for ActionController and ActionView.

SimpleCaptcha is the simplest and a robust captcha. Its implementation requires adding up a single line in views and in controllers/models. SimpleCaptcha is available to be used with Rails2.0 or above and also it provides the backward compatibility with previous versions of Rails.

Captcha library which uses imagemagick to create captchas

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

AntiCaptcha api ruby wrapper

RubyGem package for visualCaptcha's backend service

A Google-style captcha for enterprise Rails apps

Arithmetic Captcha

generate captcha by dalli,use the memcache

IQ, Math Captcha

This is mt first gem

MVC based Math, Logic Captcha

create captcha for api based project

Quick little arithmetic plain-text captcha

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

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