Passport.js

Passport.js is a flexible authentication middleware for Node.js applications that simplifies how users log in and prove their identity. It supports many login methods, like usernames and passwords or third-party services such as Google or Facebook. By integrating Passport.js, developers can easily add secure login features to their websites or apps, managing user sessions and authentication processes efficiently. Essentially, it acts as a bridge between your application and various login systems, ensuring users can access protected content securely without exposing sensitive information.