JWT decoder
Inspect the JSON header and payload of a JWT locally.
01 / Your input
02 / Your result
Your result will appear here.
How to use this tool
- Enter your own values, or select Load example to restore the demonstration inputs.
- Review the input text before selecting Run tool.
- Inspect the result, then copy it or download the generated file. Changing inputs clears the previous result.
Processing happens in this browser. Inputs are not uploaded or saved by the tool. Reset clears the result and restores the default settings.
Example and expected result
The example header says HS256; the payload contains sub: demo.
Limits and interpretation
Decoding does not verify the signature, identity, trust or expiration. This is a dummy token, never use the example as a credential.