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JWT Decoder

Paste a JWT and see the decoded header + payload + signature. Surface iat / exp / nbf timestamps in human-readable form. Decode-only — tokens never leave the browser.

/productivity

Decode-only — your token is never sent anywhere. This tool does not verify signatures (which would need the signing secret).

JWT

Header

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

Payload

{
  "sub": "1234567890",
  "name": "John Doe",
  "iat": 1516239022
}

Timestamps (decoded)

iat	2018-01-18 01:30:22Z (issued at)

Signature

SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c