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JWT Decoder

Decode and analyze JWT tokens. View header, payload, signature and check expiration times.

About JWT

JWT (JSON Web Token) is a compact, URL-safe means of representing claims to be transferred between two parties. It consists of three parts: Header, Payload, and Signature.

Common Payload Claims

  • sub - Subject (user ID)
  • iat - Issued at (timestamp)
  • exp - Expiration time (timestamp)
  • iss - Issuer
  • aud - Audience
  • nbf - Not before (timestamp)

Key Features​

  • Decode JWT header, payload, and signature
  • Timestamp analysis (iat, exp, nbf)
  • Copy functionality for each section