Teeworlds themed captcha to filter automated requests. No javascript has to be run on the client side.

Users can solve the captcha while having NoScript activated.

Ok let's be honest my instance is likley down since this project is me messing around. But feel free to give it a try if you want to see the captcha in action without running your own.

<iframe width="720px" height="600px" src="https://captcha.zillyhuhn.com/?t=your-token&callback=http://yourserver.tld" scrolling="no" frameborder="0"></iframe>

Run the backend (this repository)

npm install
node tee-captcha.js

The in your application that needs a captcha implement this iframe

<iframe width="720px" height="600px" src="https://your-captcha-backend.tld/?t=your-token&callback=https://your-web-app.tld" scrolling="no" frameborder="0"></iframe>