A captcha that uses images instead of garbled text

This plugin adds helpers for the YinXiangMa CAPTCHA API

adds audio support to simple captcha

A honeypot style captcha extension for ActiveRecord. Simple one-line inclusion in the model combined with a simple form field should trap the bad guys in the molasses.

Simple Audio Extension to Simple Captcha

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

Ruby port of VIT AutoCaptcha

wxianfeng_simple_captcha is captcha for rails,modified from simple_captcha .

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

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

Easy to use classical captcha for Rails apps

A simple CAPTCHA implementation for Rails 5+ based on RMagick.

To help with keep the bots at bay this gem helps you easily add honeypots to forms and/or obfuscate your form field names

Captcha Client for YunPian.com

Metabypass | Ruby-based easy implementation for solving any type of captcha by Metabypass

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

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

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

A simple and custom captcha for Rails3.

Google reCaptcha helpers and verifier