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JWT Decoder

Decode and inspect JWT tokens. View header, payload, and expiration. Works entirely in the browser.

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What this tool does

JWT Decoder decodes JWT header and payload sections. It accepts JSON Web Tokens from auth flows and returns readable token header, payload and timing information. Use it for inspecting claims, expiration dates, issuers and scopes during authentication debugging.

Related extensions and formats

These are the formats and values directly related to the JWT Decoder workflow: JSON Web Tokens from auth flows becomes readable token header, payload and timing information.

JSON Web Token

JWT

A compact token format made of encoded header, payload and signature sections, often used in authentication flows.

JSON file

.json

A structured data file based on JavaScript Object Notation, widely used for APIs, configuration files and application state.

How to use this tool

  1. 1Paste or enter JSON Web Tokens from auth flows into JWT Decoder.
  2. 2Adjust the available options when the tool provides extra controls.
  3. 3Review readable token header, payload and timing information, then copy or download the result.

Common use cases

  • Use JSON Web Tokens from auth flows for inspecting claims, expiration dates, issuers and scopes during authentication debugging.
  • Generate readable token header, payload and timing information without installing external utilities.
  • Quickly check JSON Web Tokens from auth flows before pasting it into code, documentation or integrations.
  • Keep sensitive data in the browser during quick development tasks.

Frequently asked questions

What is JWT Decoder used for?

It is used for inspecting claims, expiration dates, issuers and scopes during authentication debugging, converting or analyzing JSON Web Tokens from auth flows to produce readable token header, payload and timing information.

What input can I use with JWT Decoder?

Use JSON Web Tokens from auth flows. The expected result is readable token header, payload and timing information.

Does JWT Decoder send my data to the server?

No. DevMe tools are designed to process data in the browser whenever possible.