MERN is a popular technology stack that is used for building full-stack web applications.
MongoDB: It is a document-oriented NoSQL database that is used to store the data of your application. It's known for its flexibility, scalability, and ease of use.
Express: Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications. It is used to build the server-side of the application.
The MERN stack offers a modern and efficient way of building full-stack web applications and has been gaining popularity among developers due to its simplicity and flexibility.