JSON Web Token Based Authentication System

In today’s digitally connected world, securing user access to web and mobile applications is a critical requirement. Traditional session-based authentication methods, while functional, often fall short in terms of scalability, efficiency, and adaptability—particularly in distributed and microservice-based environments. This project proposes the use of JSON Web Tokens (JWT) as a stateless, secure, and scalable alternative for managing user authentication. The implemented system eliminates the need for server-side session storage, reduces server load, and enhances compatibility with modern application architectures such as Single Page Applications (SPAs). Key features include token-based user identity verification, Role-Based Access Control (RBAC), secure token transmission, and a refresh mechanism to maintain session continuity. By integrating frontend, backend, and database components, the proposed system ensures robust access management, improved performance, and strong resistance to common security threats like session hijacking and Cross-Site Request Forgery (CSRF). The outcome demonstrates JWT’s capability to modernize authentication processes and deliver a seamless user experience across platforms.