JWT Decoder

Paste a JWT to inspect header and payload claims. Signature verification is not performed.

Decoding a JWT does not verify the signature. A readable token is not proof that it is valid or trusted.

JWT Inspector

Processed in your browser · nothing uploaded

● Ready

JWT token

Header

Payload

Signature (raw)

—

What is a JWT decoder?

A JWT decoder splits a JSON Web Token into header, payload and signature so you can read claims such as sub, exp and iss.

No. Validation requires verifying the signature with the correct secret or public key. This tool only inspects the encoded JSON parts.