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What the tool does

Shows the header and the payload of a JSON Web Token and tells whether it has expired.

How to use it

  1. Paste the token.
  2. Read the header and the payload.
  3. Copy the part you need.

Good to know

  • The signature is not checked: the tool only reads the token.
  • The token never leaves your browser.

Frequently asked questions

Is it safe to paste a token here?
Yes, everything is read in your browser and nothing is sent.
Can it verify the signature?
No, that needs the secret key of the issuer.