JWT Decoder
Inspect JWT claims locally. Decode only — signatures are never verified.
Decode only — signatures are not verified. Do not treat a decoded token as authentic.
Expired — exp = 2023-11-14T22:13:20.000Z
Signature segment: present (not verified)
What is this tool?
A JSON Web Token (JWT) is a compact way to carry claims between parties. This tool Base64URL-decodes the header and payload so you can read claims like sub, iat, and exp. It does not accept a secret or public key and does not verify signatures — never treat a decoded token as authentic proof.
How to use it
- Paste a JWT (three dot-separated segments).
- Review the pretty-printed header and payload.
- Check the exp indicator if an expiry claim is present.
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