JWT Decoder

Decode and inspect JSON Web Tokens (JWT) to view header, payload, and signature.

Enter JWT Token

ExpiredExpired on 1/1/2025, 5:30:00 AM

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

Algorithm

HS256

Type

JWT

{
  "sub": "1234567890",
  "name": "John Doe",
  "iat": 1516239022,
  "exp": 1735689600
}

Issued At (iat)1/18/2018, 7:00:22 AM

Expires (exp)1/1/2025, 5:30:00 AM

SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c

Note: This tool only decodes the JWT. It does not verify the signature. Never trust a JWT without proper server-side signature verification.

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MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: Standard Mathematical References

by Various

ðŸ”„Last reviewed: May 2026

âœ“Formula checks are based on standard references and internal QA review.