JWT Decoder

Paste a JWT to instantly decode and inspect its header, payload, and signature. View expiration times, issued-at dates, and all claims in a readable format.

How to Use JWT Decoder

  1. Paste or enter your data in the input field above.
  2. The result appears instantly — no button press needed.
  3. Copy the output to your clipboard with one click.

Frequently Asked Questions

What is a JWT?
A JSON Web Token (JWT) is a compact, URL-safe token format used for securely transmitting information between parties. It consists of three parts: header, payload, and signature.
Can this tool verify JWT signatures?
This tool decodes and inspects JWTs but does not verify signatures, as that requires the secret key or public key.

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