JWT Decoder (JSON Web Token)
Decode and inspect JSON Web Tokens without sending your authorization secrets to external servers. Formats header, payload claims, and verifies expiration status.
How to use JWT Decoder (JSON Web Token)
- 1Paste your encoded JSON Web Token (Bearer token).
- 2View the color-coded decoded Header (red), Payload (purple), and Signature (blue).
- 3Check the automatic token expiration status and timestamp calculation.
Key Features & Capabilities
Frequently Asked Questions
Does decoding a JWT expose my private secret key?
No. The payload and header of a JWT are only Base64URL-encoded, not encrypted. Decoding displays what is already embedded in the token.
Privacy & Security Commitment
Tokens are parsed locally in browser memory. Never transmitted over the network.
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