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Security Tool

JWT Decoder

Decode and inspect JSON Web Tokens instantly. See the header, payload claims, and expiry status — no secrets sent anywhere.

Token Expired
Expired: 2025-05-21 21:03:42 UTC
Issued: 2024-05-20 21:03:42 UTC
Algo: HS256

Key Claims

Subject
user_123
Expires
2025-05-21 21:03:42 UTC
Issued At
2024-05-20 21:03:42 UTC
Name
Alice Smith
Email
alice@example.com
Role
admin
Header
"alg":"HS256"
"typ":"JWT"
Payload
"sub":"user_123"
"name":"Alice Smith"
"email":"alice@example.com"
"role":"admin"
"iat":1716239022
"exp":1747861422
Signature
Base64url encoded
SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c
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