JWT Decoder

JWT token decode & parse

使用说明

JWT Decoder decodes and analyzes JSON Web Token (JWT) tokens. Paste JWT to view Header (algorithm and type) and Payload (claims) details. Shows signature information without verification. Essential for API debugging, token analysis, and authentication debugging.

JWT Token

Header

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

Payload

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

Payload Field Description

sub: 1234567890 (Subject)

name: John Doe

iat: 1516239022 (2018/1/18 09:30:22) (Issued At)