MERN Stack Explained: A Beginner's Guide [2025] – Simplilearn

MongoDB: MongoDB is a NoSQL database that stores data in a flexible, JSON-like format. It is a popular choice for web applications because of its scalability, flexibility, and ease of use.

2. Express.js: Express is a web application framework for Node.js that simplifies the process of building web applications. It provides a set of powerful features that make it easy to create APIs and handle HTTP requests.

3. React: React is a JavaScript library for building user interfaces. It allows developers to create interactive and dynamic web applications with reusable components. React is known for its performance and ease of use.

4. Node.js: Node.js is a runtime environment for running JavaScript on the server side. It allows developers to build scalable and high-performance web applications using JavaScript. Node.js is known for its speed and efficiency.

When combined, MongoDB, Express, React, and Node.js form the MERN stack, which provides a powerful and efficient way to build modern web applications. Each technology in the stack complements the others, making it easy to develop and deploy web applications quickly.

Overall, the MERN stack is a great choice for developers looking to build full-stack web applications with ease and efficiency. It is widely used in the industry and has a strong community of developers supporting it.