FAHAQ

JWT Decoder

Decode JWT header and payload.

Signature is NOT verified — this only decodes.

Free online JWT decoder. Decode a JSON Web Token's header and payload to readable JSON, entirely in your browser. The signature is not verified and nothing is uploaded.

How to use the JWT Decoder

  1. 01Paste your JWT.
  2. 02The header and payload are decoded to JSON.
  3. 03Copy whichever part you need.

Frequently asked questions

Does it verify the signature?

No — this tool only decodes the token; it does not verify the signature. Never paste production secrets.

Is my token uploaded?

No — decoding happens entirely in your browser.