[Feedback] JWT.io / Encoding Format / Base64

blop · October 24, 2025, 12:50pm

Hello !

Could you consider adding another option in the “Encoding Format” of the secret key?

Currently there is “UTF-8“ and “base64url“, could be nice and easy to add the “base64” encoding as well (which is slightly different and also very popular).

Thanks !

Regards,

Olivier

dawid.matuszczyk · October 31, 2025, 8:17pm

Hi @blop

Welcome to the Auth0 Community!

Thank you for posting your feedback. I will pass it to our engineering team, who is responsible for JWT.io.

Thank you for being part of the community!
Dawid

system · November 14, 2025, 8:17pm

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.

Topic		Replies	Views
Understanding what is the process of "secret base64 encoded" when user click on the tick button JWT.io jwt	10	16211	March 11, 2020
Verification of jwt signed with base64 encoded secret fails on jwt.io Get Help jwt , auth0	1	4162	February 25, 2021
Have the jwt.io debugger error if token is base64 encoded Get Help jwt , debugger	2	4244	March 2, 2018
How do I need to decode secret on jwt.io when using base64 checkbox JWT.io	2	2565	January 13, 2023
Token validation with https://jwt.io/#debugger JWT.io jwt-validation	2	4431	March 2, 2018

[Feedback] JWT.io / Encoding Format / Base64

Related topics