Developer Tools
JWT Decoder
Decode JWT headers and payloads locally in your browser for quick inspection.
JWT Decoder
Decoding does not verify the token signature. Use this for inspection only.
Header
Payload
About this tool
Paste a JWT to inspect its decoded header and payload while debugging authentication, API calls or test fixtures.
Common uses
- Inspect JWT payload claims
- Debug authentication tokens
- Check token expiry fields
Privacy note
JWT decoding runs locally in your browser. The tool decodes tokens for inspection but does not verify signatures.
How it works
Paste or generate the value you need, run the conversion or formatting action, then copy the result into your editor, API client or test workflow.
JWT Decoder focuses on inspect jwt payload claims and debug authentication tokens with a clear interface that keeps the main action close to the input.
Good to know
Paste a JWT to inspect its decoded header and payload while debugging authentication, API calls or test fixtures.
Developer utilities are intentionally small and direct, so they can be used during debugging without opening a heavy application.
Treat tokens, credentials and production data carefully. Decoding or formatting data is not the same as validating whether it is safe or trusted.
FAQ
Is JWT Decoder free to use?
Yes. JWT Decoder is available as a free UnboxTrip tool for everyday use.
Does JWT Decoder upload my input?
JWT decoding runs locally in your browser. The tool decodes tokens for inspection but does not verify signatures.
What is JWT Decoder best for?
JWT Decoder is best for inspect jwt payload claims, debug authentication tokens, check token expiry fields.