JWT (JSON Web Token)

A compact, URL-safe token used for authentication and securely transmitting information between parties.

What is JWT (JSON Web Token)?

JWT (JSON Web Token) is a self-contained token format that encodes claims securely for authentication and authorization.

JWTs are commonly used for stateless authentication in modern applications.

Key JWT components include:

  • Header: Contains token type and signing algorithm
  • Payload: Contains user claims (e.g., user ID, roles)
  • Signature: Ensures token integrity and authenticity

    • JWTs are widely used in APIs and microservices to enable secure, scalable authentication.

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