MongoDB is a document-oriented NoSQL database that allows developers to store data in JSON-like documents. It provides high performance and scalability, making it an excellent choice for web applications.
Express.js is a popular web framework for Node.js that provides a set of robust features for building web applications. It provides a simple interface for handling HTTP requests and responses, making it easy to build RESTful APIs.
React is a powerful front-end library developed by Facebook that allows developers to build dynamic and responsive user interfaces. React provides a component-based architecture that makes it easy to reuse code and build complex UIs.