JWT Decoder
Decode and inspect JSON Web Tokens. View header, payload, and check expiration!
Paste a JWT token to decode
Features
- Decode JWT tokens
- View header & payload
- Check expiration
- Timestamp conversion
- Copy decoded data
- No server upload
How to Use
- 1Paste your JWT token
- 2View decoded header
- 3Inspect payload claims
- 4Check expiration status
Frequently Asked Questions
Is my token uploaded?
No! Decoding happens entirely in your browser. Your tokens stay private.
Does this verify the signature?
No, this only decodes the token. Verification requires the secret key.
What is the exp claim?
Expiration time - a Unix timestamp when the token becomes invalid.
Why use JWT?
JWTs are compact, self-contained tokens for authentication and information exchange.
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