This project has as the main goal to provide a debugger, capable of decoding and verifying JSON Web Tokens, according to RFC 7519. Simply paste the token into input section and click the button, the entry will be decoded as well and a signature check will also be done. You can find more about JSON Web Tokens here. Finally, you can see my implementation up close here.
This code/project is entirely based on JWT.IO, all credits reserved to Auth0