JWT Decoder

Decode a JSON Web Token to read its header and payload locally.

About this tool

A JWT has three parts separated by dots. This tool decodes the header and payload and shows expiry dates. It does not verify the signature.

How to use JWT Decoder

  1. Paste your JWT.
  2. Read the decoded header and payload.
  3. Check the issued and expiry times.

Frequently asked questions

Is my token sent anywhere?

No. Decoding happens in your browser. Still, avoid pasting production secrets anywhere you do not trust.

Does this verify the token?

No. Anyone can read a JWT. Verification needs the secret or public key on your server.