Free captcha tools or service for developers

A collection of free captcha app, tools or service for developers

Logo thumbnail for Friendly Captcha

Friendly Captcha

Bot protection for the internet

Tags: captcha, security

Free Offer:

1,000 requests / month Not for commercial
Logo thumbnail for mCaptcha


mCaptcha is proof-of-work based captcha system that is privacy focused and fully automated.

Tags: captcha

Free Offer:

self host