Quick little arithmetic plain-text captcha

create captcha for api based project

This is mt first gem

Simple captcha

TrustCaptcha – Privacy-first CAPTCHA solution for Ruby. GDPR-compliant, bot protection made in Europe.

A simple and fast image captcha generator that uses opencv and memcached.

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

Helper for Turnstile Captcha API

Easy to use classical captcha for Rails apps

IQ, Math Captcha

dongsx

A gem to generate captcha pictures.

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

Simple negative captcha for Rails

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

Generates and verifies ascii art captcha.

Antigate (Decode captcha service) wrapper for Ruby

Create and poll CAPTCHA solve tasks via CapMonster Cloud.

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

A smart captcha library