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JWT Decoder

Decode a JSON Web Token to see its header, payload and expiry time. The token stays in your browser and is never stored.

Tip from Tink: Decoding doesn't verify the signature — anyone can read a JWT.

Algorithm
HS256
Issued
11/10/2025, 1:46:40 AM
Expires
11/10/2026, 1:46:40 AM (expired)

Header

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

Payload

{
  "sub": "1234567890",
  "name": "Tink",
  "iat": 1762739200,
  "exp": 1794275200
}

The signature is not checked. Your token never leaves this page.

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How to use the JWT Decoder

  1. Paste the token.
  2. Read the header and payload.
  3. Check the issued and expiry times.

Everything runs in your browser. Nothing you enter is uploaded.