MERN and MEAN: A Comprehensive Guide for Web Developers

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By Muskan

“MEAN” and “MERN” are both variable options for building web applications, they represent different stacks of technologies used for building applications according to the needs of the developer or we can say customer requirements. The biggest question arises which is better, well I will say you can’t answer that in simple worlds like “Sky” is blue and “Water” is transparent. They are both technology stacks used by developers worldwide, the main purpose of using these technology stacks is to develop apps using JavaScript which is a high-level language. JavaScript is typically translated into machine code using a process called compilation.

In compilation, the JavaScript code is first converted into an intermediate representation i.e. easier for the compiler to understand. The IR is then converted into machine code that is specific to the target computer architecture. You all will be thinking why I have given this lecture on JavaScript -is this topic on MEAN MERN or JavaScript writing, well to understand as a developer we have to be able to get the idea of how JavaScript works, cause the concept of  MEAN and MERN is hereditary of JavaScript.

▼ What will you find here on this page

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  • Full Stack Development ◄
  • Courses provided by institutions in Noida◄
  • What is MEAN stack technology?◄
  • What is MERN stack technology?◄
  • Comparison: MEAN vs MERN◄
  • Stack to choose for your upcoming projects◄

Full Stack Development Course

The developer can design the best UI/UX multiple technologies, and software at the back end. We the smart developers begin development work from scratch and go to delivering the entire functional site or app.

Full stack tech allows crafting with high-grade mobile apps that perfectly suit our business to grain the goals and also represent the extreme performance of scalability and accuracy.

The full stack comprises four-critical software solutions:

MERN and MEAN developers excel in grasping the technical intricacies of their projects. They swiftly identify errors and provide solutions within various web architecture streams. Their expertise allows for efficient problem-solving and enhances project development across different technological frameworks. The point is, that full-stack development is the right choice for small and mid-size enterprises working distinctly.

Which course to choose from and Where?

Don’t stress about course choices or worry about your career’s future. Noida institutions offer comprehensive MEAN or MERN stack tech domain learning, providing end-to-end information to ensure you build the best career for your profile. Here are the best Full Stack Developer training institutes in Noida, institutions like Uncodemy, Udemy, Coursera etc. that provide many different projects to make your skills more improved with the best experts in Noida with hands-on experience calibre. Anyone can join this course Graduates, Undergraduates as well as working professionals. In this field, there is so much to learn from and courses and familiarizing yourself with stack tech like this will escalate your learning curve.

The institute also provides track-on schedules so that you can choose better according to your timetable:-

 MEAN or MERN Classes Time Fixture

Track Regular track Weekend track Fast track
Course duration 40-60 days 8 weekends 5 days
Hours 2 hr a day 3 hr a day 6-7+ hours a day
Training mode Offline/online Offline/online Offline/online

As a developer, there’s no right or wrong choice—bugs and errors are inevitable, much like life itself. Enroll in these courses swiftly. Go ahead, learn the future of IT with the best MEAN/MERN stack technology.

Let’s jump to the question here of acclamation which is “What is better MEAN or MERN”, to understand this better we have to be aware of these technology stacks more better, I will dive into MERN first, so let us be cognizant of MERN tech fundamentally.


The MERN stack is a favourite among developers. It enables the creation of efficient, scalable, and modern web applications. What makes it particularly appealing is its utilization of a single programming language: JavaScript. As I mentioned earlier, JavaScript is a cornerstone in every quarter of this topic.

MERN represents a set of technologies often used together in web development. Each letter in MERN corresponds to a different technology :
  1. MongoDB: The term “Mongo” originates from “Humongous,” describing the set of data the software is designed for. Developers use MongoDB, a NoSQL database, to manage large volumes of data. MongoDB is a schema-less database which means, it can manage data without a blueprint. We are getting way technical here -Right!! MongoDB is a non-relational, open-source, document-oriented database. It efficiently manages substantial data loads and delivers rapid performance. Ideal for handling large datasets, MongoDB’s design prioritizes flexibility and scalability.
  • ExpressJS: Express is a minimal and flexible Node.js web application framework. It offers a robust set of features for both web and other applications. In terms of performance, Express provides a thin layer of fundamental web application features. It ensures that Node.js features remain visible and appreciated without unnecessary abstraction. Some popular frameworks are: • Feathers • ItemsAPI •KeystoneJS
  • React: React is one such front-end library that can build engaging user interfaces. React allows developers to create reusable UI components that update in real-time as the data changes. To use React in the MERN stack, we will need to install the React library and the Node.js runtime environment.
  • Node.js: Smart developers choose Node.js for crafting server-side web applications. It excels in handling data-intensive tasks due to its asynchronous, event-driven model. It enables the development of scalable and high-performance web applications.

Let’s shift our focus to MEAN stack technology. It’s essential to explore MEAN alongside MERN for a comprehensive understanding of these tech stacks. MEAN comprises MongoDB, Express.js, Angular, and Node.js. Each component contributes to a robust full-stack JavaScript development environment. MongoDB stores data, Express.js facilitates server-side operations, Angular handles client-side frameworks, and Node.js ensures efficient server-side runtime. Comparing MEAN and MERN will provide valuable insights for determining their respective strengths and applications.


The MEAN stack excels in various web application types, from real-time and progressive web applications to single-page applications. Cloud technology is currently gaining significant attention and advancing rapidly, poised to shape the future of Artificial Intelligence. In this context, MEAN proves to be an excellent choice for the development of cloud-based applications.

It is named after four key technologies that make up the stack:

The letter in MEAN stands for MongoDB, Express.js, Angular JS and Node.js.

We are already familiar with the “MEN”-whoa ! “men” are everywhere mean is this a topic on MEAN vs MERN or “gender equality”, jokes apart, what I wanted to say is we have already discussed the “MEN” earlier on the MERN clause. So let’s move on to what’s “A” i.e. [Angular JS].

  • Angular JS: It aimed to simplify both the development and the testing of such applications by providing a framework for client-side model-view-controller(MVC) and model-view-viewmodel(MVV) architectures, along with components commonly used in web applications and progressive web applications. It is a discontinued free and open-source JavaScript-based web framework for developing single-page applications. Google and a community of individuals and corporations primarily maintained it.

Some features of Angular JS are:

  • It is a powerful tool for building rich Internet applications(RIA)
  • It has a large and supportive community.
  • Many popular websites and web applications, such as YouTube, Gmail, and the Weather Channel, use it.

As we are longing for which is better MEAN or MERN, let us compare the features provided by these stack technologies  in the form of the table:

Feature MEAN stack MERN stack
Database MongoDB More in favour of smaller applications
Front-end Angular JS React.js
Back-end MongoDb,Express,Node.js MongoDb,Express,Node.js
Demand More popular for enterprise-live architecture It is not as scalable as the MEAN stack, less efficient as it uses several third part libraries.
Advantages Larger communities more mature set of technologies, open source, high performance, real-time applications Complex, limited data tracking and recovery, challenge for large-scale applications,
Disadvantages Complex, limited data tracking and recovery, challenge for large scale applications, Easier to use job production, order fulfilment, and invoicing.


In Conclusion, I would say neither stack is inherently “outmatched” than the other. The choice between MEAN and MERN often depends on factors such as business demands, project requirements, personal references, team expertise and many other factors.

I trust that this article will be helpful for developers with great intent to make exceptional web applications to choose suitable stack tech of MERN or MEAN that suits their needs and fulfils their requirements.

I hope this information is useful.

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