A numeric captcha generator for Node.js. Has a built in fast server that will allow you to serve and validate captchas realtime. The use case that we built this for was to generate offline captchas (an internal requirement) where we can never use google captchas.
- Only generate numeric captcha PNG image
- Build-in fonts
- Characters up and down, left and right limits, random displacement
- Full JavaScript
- Async management of database.
- Server features to be added to docker.