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JWT Decoder

Decode a JSON Web Token’s header and payload, with expiry check.
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JWT Decoder

Instant

Guide

How to use the JWT Decoder

  1. 1

    Paste the token.

  2. 2

    Read the header and claims.

  3. 3

    Check the expiry time.

Expert tip

What you should know

JWT payloads are only Base64-encoded, not encrypted: anyone holding the token can read them, so never put sensitive data in claims.

FAQ

Frequently asked questions

Does it verify the signature?+

No. Decoding only reads the token; verification needs the secret or public key on your server.