MERN stack is a JavaScript-based full-stack framework . It is a combination of MongoDB, Express.js, React.js, and Node.js to create dynamic and efficient web applications using only one language. What is MERN Stack ? A Compherhensive Guide Richard Harris 15 September 2025 The MERN stack is a collection of technologies used to build web applications. The acronym stands for MongoDB, Express.js, React.js, and Node.js. These technologies enable developers to build full - stack applications to give development solutions. They can manage both the front end and the back end with a unified JavaScript-based approach. Web development is a procedure or process for developing a website. A website basically contains three ends: the client side, the server side, and the database. These three are different sides of an application that combine together to deliver an application; all ends are implemented separately with different technologies. MEAN and MERN are the technologies responsible for developing all ends of a web application. Also, this kind of development is called full - stack development. These stacks ... The MERN Stack is a group of four powerful tools used to build full web applications. The word MERN stands for: M: MongoDB – A database where your data is stored. E: Express.js – A web framework that helps manage server-side logic. R: React – A front-end library that helps build user interfaces.
