JWT Reader
FreeDecode and inspect JWT tokens instantly in your browser. Your token never leaves your device.
- 1
Paste your JWT token into the input field.
- 2
The header and payload are decoded and displayed instantly.
- 3
Check the expiry status — green means valid, red means expired.
Frequently asked questions
Yes. The token is decoded entirely in your browser using JavaScript. Nothing is sent to any server.
No. Signature verification requires the secret key which you should never share. This tool only decodes the payload.
A JSON Web Token is a compact, URL-safe way to represent claims between two parties, commonly used for authentication.
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