hs-captcha

Generate images suitable for use as CAPTCHAs in online web-form security.

Generates images suitable for use as CAPTCHAs in online web-form security. Does not integrate with any web framework; simply exports a function that creates the image itself as a ByteString (containing a PNG), and the correct answer to the challenge as a String. HS-Captcha is designed to be as simple as possible to integrate in other frameworks.