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JWT Decoder

Decode JSON Web Tokens to inspect the header, payload and expiry. Tokens never leave your browser.

No uploads

Valid until 3/17/2030, 5:46:40 PM

Header
{
  "alg": "HS256",
  "typ": "JWT"
}
Payload
{
  "sub": "1234567890",
  "name": "Localkit",
  "iat": 1760000000,
  "exp": 1900000000
}
iat
10/9/2025, 8:53:20 AM
exp
3/17/2030, 5:46:40 PM

How to use JWT Decoder

  1. 1Open JWT Decoder. It runs in your browser, no sign-up.
  2. 2Type or paste your input.
  3. 3Copy or download the result.

Questions

Is it safe to paste production tokens?

Decoding happens locally; the token is never sent anywhere. Still, treat live tokens like passwords.

Does it verify the signature?

No — verification needs the secret or public key. This tool decodes and checks expiry.

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