JWT Decoder
Decode and inspect JSON Web Token header, payload, and signature.
How to use JWT Decoder
- 1
Paste or type your input in the editor.
- 2
Click Process to transform instantly.
- 3
Copy the result with one click.
Why choose JWT Decoder?
- Runs 100% in your browser
- No file uploads needed
- Instant results
- Private — data never leaves your device
FAQ
Is verification performed?
This tool decodes only. Signature verification is not performed.
Is my token sent to a server?
No. Decoding happens entirely in your browser.