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The environment for developing web applications in the twenty-first century has completely changed from a few years ago. Earlier, HTML, CSS, and JavaScript were used to build mobile and web apps. There are several server-side technologies, programming frameworks, and runtime environments available today that have been verified in the industry. MERN is one such technological stack. For some time now, the MERN stack application landscape has been rapidly expanding. You will gain a general overview of MERN and its app infrastructure in this article. Additionally, it will highlight the benefits and use cases of the MERN stack for commercial apps.

The pillars of the MERN stack


MongoDB is a document-oriented, open-source, NoSQL DBMS that runs on multiple platforms. This means that data may be saved using collections and documents. It stores data in binary JSON format to guarantee quick data transfer between client and server. When you hire MERN stack developers they use this scalable technology and increase the amount of data it can store.

Millions of developers use MongoDB to power the most cutting-edge goods and services. i.e., SEGA, Google, Adobe, Ivison, eBay, Google, and Shutterfly.


It is a free and open-source backend web application framework for building RESTful APIs with NodeJS. Express is a flexible, compact NodeJS framework that aids in creating unique apps. It is a back-end, server-side framework for creating streamlined, quick, and secure apps. Because of its rapid speed and simple architecture, Express is a popular choice among technical co-founders, CTOs, and IT specialists.


The front-end JavaScript library ReactJS was created by Meta for their use. ReactJS, also referred to as React, is used to create dynamic single-page web applications. React’s primary goal is to make apps run faster and perform better. It has characteristics like one-way data binding, nested components, unidirectional reactive data flow, and the virtual document object model (DOM).


NodeJS is primarily used by developers to create backend API services, and conventional web, and mobile apps. It is the operating system for JavaScript. Numerous operating systems, including Mac OS X, Linux, Unix, and Windows, support NodeJS. NodeJS has many functionalities, including:

  • Dynamic material on websites
  • Pattern for free ASCII text files
  • Package management for Node (NPM)
  • Event-driven, asynchronous model

The architecture of the MERN stack

Client layer

ReactJS is represented by the MERN stack’s top layer. It is in charge of developing client-side dynamic web and mobile applications. You can manage failures effectively and reuse the code with React. It assists you in managing lists, forms, and events and functions as a one-size-fits-all solution.

Server Layer

The MERN stack’s second layer is made up of the two modules Express.js and Node.js. It is in charge of controlling HTTP requests and redirecting URLs. The client tier and database tier are connected by this layer.

Database layer

The MERN stack’s third and bottom tier is in charge of storing your app’s data in MongoDB. This layer stores data in the rows and columns of a table. The data that has been stored can be retrieved quickly and easily.

Advantages of MERN stack

  • It is more rapid and effective than conventional servers, making it suitable for small apps.
  • better user experience, more sensitive to user inputs
  • The business logic and presentation details are kept apart in MVC design.
  • Both frontend and backend app development is supported by full stack development.
  • Troubleshooting input/output and CPU issues take less time with a quick and reliable web server.
  • It supports the Model View Controller (MVC) architecture, which streamlines the web development process.
  • The MERN framework allows open-source support and lowers development costs. It is also easily accessible.
  • The four reliable technologies are practical enough to create a complete software system.
  • The framework includes a comprehensive set of testing tools that are already built in.
  • The framework aids in creating scalable and reliable online apps.
  • The four technologies enable seamless platform interaction with cloud services.

Use cases of MERN stack:

MERN is a web stack, so you can create whatever you want with it, although it works best for JSON-heavy, cloud-native apps with dynamic web interfaces. You can build apps for workflow management, news aggregation, to-do apps and calendars, interactive forums and social products, and anything else you can dream of!

Why you should hire MERN stack developers

Since your idea is in its infancy, it needs to have a fast-track and seamless workflow, so that the time-to-market can be reduced. MERN stack developers help you achieve just that! Below are the reasons for how the MERN stack developers helps you:

  • They cover the complete web development lifecycle using JavaScript, from front end to back end development.
  • As MERN stack enables the Model View Controller (MVC) architecture, developers can have a streamlined development process.
  • JavaScript and JSON are the only languages that MERN developers must be fluent in.
  • They also assist with built-in testing tools

Top brands Using MERN stack:


UberEats updated its restaurant dashboard using the React framework to make it look and feel more inviting. Developers put a lot of effort into enhancing the driver’s interaction with food establishments. Permit them to do so by putting the demo app into use.


The creators added push notifications to React Native and added a new feature that lets users store the posts they found interesting. Additionally, this framework makes it simple to use the Post Promote feature. You may achieve a quicker startup time and a more engaging UX with the aid of React Native.


To improve the performance of their hybrid app, the professionals here implemented React Native on mobile devices. As a result, 95% of the coding for mobile apps is shared by the iOS and Android operating systems.

Think ahead!

You might want to use MERN to create web or mobile apps once you’ve gotten the hang of it. Contact professionals if you’re thinking about implementing MERN in actual projects. As now you have gotten a clear picture of what MERN offers, it will be easy for you to implement it for your web projects.

Author Bio:-

Suvarna Parikh is a technical content writer at ultroNeous Technologies – a leading web and mobile application development company that crafts user-centric digital products for brands of every size. She is passionate about writing on tech and marketing and balances informative content with an engaging read. Aside from her writing, she is a bookworm interested in various fiction genres and loves sharing her perspectives on key technological and marketing aspects.

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