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JWT Decoder

Decode JSON Web Tokens to read the header, payload, issued and expiry times. Runs locally — tokens are never sent anywhere.

Loading JWT Decoder…
🔒PrivateRuns in your browser — nothing is uploaded.
⚡FastInstant results, no waiting in queues.
💸FreeNo sign-up, no watermark, no limits.
📱AnywhereWorks on phone, tablet and desktop.

How to use the JWT Decoder

  1. Paste your JWT
  2. See the decoded header and payload
  3. Check the expiry time

About this tool

Decode JSON Web Tokens to read the header, payload, issued and expiry times. Runs locally — tokens are never sent anywhere. JWT Decoder is part of ToolNest's collection of free developer tools. It works instantly in your browser with no account and no installation.

Frequently asked questions

Is the JWT Decoder free to use?

Yes. JWT Decoder on ToolNest is completely free, with no sign-up, no watermark and no daily limits.

Is my data private?

Yes. JWT Decoder runs entirely in your browser. Your text and data are not uploaded or stored on our servers.

Does JWT Decoder work on mobile phones?

Yes. ToolNest works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux. There is nothing to install.