🛡️ JSON Web Token Debugger

JWT Decoder & Token Inspector

Decode JWT headers and claim payloads locally in your browser. Never transmits secrets or sensitive tokens to any server.

Encoded JWT Token

Header: Algorithm & Token Type

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

Payload: Claims & Data

{
  "sub": "1234567890",
  "name": "John Doe",
  "iat": 1516239022,
  "exp": 1878460800
}

Expiration Timestamp (exp):Wed, 11 Jul 2029 10:40:00 GMT