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devtoolsforme

Fast browser-side utilities

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devtoolsforme

JWT Decoder

Inspect token headers and payload claims locally, with readable time fields and no network roundtrip.

This tool decodes JWTs locally for inspection only. It does not verify signatures.

Header

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

Payload

{
  "sub": "1234567890",
  "name": "Devtools For Me",
  "iat": 1713888000,
  "exp": 2713888000
}

Time claims

Issued at

4/23/2024, 4:00:00 PM

Expires at

12/31/2055, 5:46:40 PM