Express.js is a simple Node.js framework for single, multi-page, and hybrid web applications.

React is a widely used JavaScript library for building user interfaces and single-page applications. It follows a component-based architecture and uses a virtual DOM to efficiently update and render UI components

Redux is a state management library for JavaScript apps that provides a predictable and centralized way to manage application state. It enables developers to write actions and reducers that update the state in response to user interactions, server responses, and other events, and can be used with a variety of front-end frameworks and back-end technologies.