JustilityJWT decoder
Inspect a token header and payload without sending it anywhere.
Processed on your device. Your files are never uploaded by Justility.
How privacy worksHow it works
Enter or choose input, adjust the options, then process and copy or download.
Supported formats
Text, JSON or CSV as appropriate; UTF-8 file input.
Good to know
Decoding is not signature verification. Do not treat the decoded token as authenticated.
Using jwt decoder
Enter or choose input, adjust the options, then process and copy or download.
Decoding is not signature verification. Do not treat the decoded token as authenticated.
Common questions
Are my inputs uploaded?
Justility processes this tool’s inputs locally and does not send them to a processing server. Public application assets are downloaded separately.
Can I use this without an internet connection?
Yes, after you prepare the relevant tool group from Offline help and the browser retains their assets. Installation is optional. All processing dependencies are bundled locally.