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JWT Decoder

Decode JSON Web Tokens online and inspect their header, payload, and token dates.

Frequently Asked Questions

What is a JWT?

A JSON Web Token is a compact token format commonly used to carry claims between systems.

What does the decoder show?

It decodes the token header and payload into readable JSON.

Does decoding verify the signature?

No. Signature verification requires the appropriate secret or public key.

Is a JWT payload encrypted?

Usually no. A signed JWT is encoded and signed, not encrypted.

Can it show expiration?

Yes, an exp claim can be displayed as a readable date.

Is it free?

Yes, it is free to use.