dev-tool-x

Token Decoder

Token

Decode JWT headers, payload claims, and signatures for inspection.

Decoded

This decodes the token for inspection. It does not validate the signature, issuer, audience, or expiry.
Algorithm
HS256
Type
JWT
Claims
5

Payload Claims

sub
Subject
1234567890
name
Ada Lovelace
admin
true
iat
Issued at
Jun 01, 2024, 12:00:00 AM
exp
Expires
Jun 01, 2024, 01:00:00 AM

Header

{
  "alg": "HS256",
  "typ": "JWT"
}

Payload

{
  "sub": "1234567890",
  "name": "Ada Lovelace",
  "admin": true,
  "iat": 1717200000,
  "exp": 1717203600
}

Signature

SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c

About Token Decoder

Token Decoder is a free online decoder for developers who need a fast way to work with Token data. Paste your input, run the tool in the browser, and use the result in APIs, configuration files, tests, documentation, or everyday debugging work.

Common uses

  • Clean up developer data during debugging, review, and documentation work.
  • Paste input, run the tool locally in the browser, and copy the result instantly.
  • Use the output in tests, API clients, config files, and shared examples.

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FAQ

What does Token Decoder do?

Token Decoder helps you decode JWT headers, payload claims, and signatures for inspection. It is built for quick browser-based developer workflows.

Is Token Decoder free to use?

Yes. Token Decoder is free to use in dev-tool-x and does not require a sign-up for normal formatting, conversion, encoding, or text cleanup tasks.

Does Token Decoder upload my data?

No. Token Decoder runs in your browser, so pasted text and uploaded files stay on your machine while you use the tool.