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Free online token utility

JWT Decoder

Inspect a JWT header and payload locally, pretty-print the JSON, and review common claims such as issued, not-before, and expiration times.

This tool decodes a token locally for inspection. It does not verify the signature.

Paste a JWT to inspect its decoded header and payload.

    What this JWT decoder shows

    This tool decodes the Base64URL-encoded header and payload segments from a JSON Web Token directly in your browser. It helps you inspect claims and metadata without sending tokens to a server.

    How to decode a JWT

    1. Paste the token into the JWT field.
    2. Select Decode JWT to pretty-print the header and payload.
    3. Review the standard claims, then copy either JSON block if you need it elsewhere.

    Important limitation

    Decoding a JWT is not the same as verifying it. This page does not confirm the signature, issuer, audience, or trustworthiness of the token. Use it for inspection and debugging only.

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