JWT decoder
Decode and inspect JWT headers, payload claims, and expiry. Timestamps shown as human-readable dates. Token never sent anywhere.
Showing example token — paste your own to decode it.
Expired 916d ago(exp: 2023-11-14T23:13:20.000Z)
Headeralg · typ
| alg | "HS256" |
| typ | "JWT" |
Payloadclaims
| sub | "user_123" |
| name | "Alice Smith" |
| "alice@example.com" | |
| role | "admin" |
| iat | 1700000000(2023-11-14 22:13:20 UTC) |
| exp | 1700003600(2023-11-14 23:13:20 UTC) |
Signature
SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c
Not verified — This tool decodes the token contents but cannot verify the signature. Signature verification requires the secret key. Never trust the contents of a decoded JWT without server-side verification.