🍯 Unobtrusive and flexible spam protection for Rails apps

Very simple captcha with Rails 3 & 4 & 5 & 6 & 7 support

A simple way to add honeypot captchas in your Rails forms.

Rails 3+4 support now! Simple Captcha is the simplest and a robust captcha plugin. Its implementation requires adding up a single line in views and in controllers/models.

A CAPTCHA system for the browser instead of the user

An interactive alternative to hard-to-read CAPTCHA schemes

minimal user impact captcha

Ruby on Rails #46 gem invisible_captcha - pure Ruby reCaptcha alternative. No more bots in your app!