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JWT decoder online tool displaying a JSON Web Token header, payload, claims, and timestamp details

JWT Decoder

Read the header and payload of a JSON Web Token.

JWT token

Decodes header and payload only — signature is not verified.

Header

Header appears here

Payload

Payload appears here

How to Decode a JWT Online in 3 Steps

  1. 1

    Use a safe token.

    Paste a redacted, expired, or non-production JWT into the decoder.

  2. 2

    Review the sections.

    Inspect the decoded header, payload, claims, and timestamp values.

  3. 3

    Verify separately.

    Use your application, trusted library, and correct key material to verify signature and claim rules.