Top Front-End JavaScript Frameworks to Use in 2021

Krunal Shah

Feb 25, 2020 | 7 min read

Front end javascript frameworks

In the past decade, JavaScript has remained the most versatile technology for web and mobile application development. The major reason behind its popularity is the flexibility it offers while writing the code. Moreover, its ability to work on different kinds of platform has made it a favorite choice for building cross-platform apps. There’s a plethora of JavaScript tools that you can use to build web apps faster. Front-end Javascript frameworks are the most useful out of those.

Whether it’s a small or a large app, you can use these frameworks as the building blocks for quick client-side development. They save you tons of development time as you don’t have to build everything from scratch.

However, picking the right framework for different kinds of projects is a meticulous choice to make. Out of many Javascript frameworks, here are our top picks for the year 2021.

1. Reactjs - the most flexible front-end JavaScript framework

js framework

Launched by Facebook in 2011, Reactjs is a comprehensive library for developing dynamic user interfaces in web applications. The Stack Overflow survey 2020 confirmed Reactjs is the most loved and one of the most popular front-end JavaScript frameworks.

React is completely open-source and comes with tons of in-built UI components. On top of that, you can also use many third-party React libraries with the in-built ones. This flexibility to use third-party libraries not only reduces the development effort but also gives more options for building an appealing UI..

Because of its virtual DOM and efficient server-side rendering, the app load time in Reactjs apps is quite low. This reduces the bounce rates on your web app and enhances its SEO performance.

Lastly, it doesn’t take long to learn React because it’s based on plain JavaScript and has a well-defined life cycle.

The only drawback here is that React lets you build the app UIs only. You need to integrate it with third-party tools like Redux and Flux to build the complete app architecture.

Business Benefits of Using React For Frontend Development

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2. Angular - the best front-end Javascript framework for building enterprise apps

After the initial launch in 2010 as Angularjs, this framework has undergone many upgrades in response to the changing trends in the development industry. Angularjs became Angular 2 with its first upgrade in 2016 and Angular 11 was recently released in November 2020.

However, I’d like to emphasize that Angular 2 was a complete rewriting of Angularjs. So Angular is quite different from Angularjs and continues to evolve every few months.

Angular too is a part of open-source front-end JavaScript frameworks. It’s the largest one and comes packed with the most advanced features for web app development.

Even though Angular is a JS framework, you can code in it using TypeScript as well. That way, code rewriting efforts are minimized because you can catch the errors while writing the code itself.

Secondly, Angular comes with a component-based architecture. This facilitates code reusability and eases app maintenance. This is the major reason why Angular is ideal for enterprise applications.

The fact that Angular is a complete framework in itself is its pro as well as a con. On one hand, you don’t need to work with other external technologies. All the basic requirements can be fulfilled by the framework itself.

On the other hand, it requires you to take care of a vast number of things. So the learning curve is steep and the complex app structure may hinder the performance some times.


We are a team of expert developers, testers and business consultants who strive to deliver nothing but the best. Planning to build a completely secure and efficient Angular app? 'Hire Angular Developers'.

3. Vuejs - a great choice for building smaller web apps quickly

Vue js framework

While Angular is supported by a giant like Google and React by Facebook, Vue.js doesn’t have any backing from a strong tech company. It was created and is maintained entirely by the community.

Vue.js has become quite popular because of its flexibility and scalability. You can use it as a library for building UI elements in a project and you can also use it as a full-fledged framework for building an entire project.

The main reasons why developers love this framework is the ease of set up and its integration with different languages.

The most distinguishing feature of Vue.js is that it's incredibly lightweight. Its file size is as low as 20 kilobytes so you can set it up and start using it within seconds.

On the flip side, Vuejs is yet to expand its community. So there aren’t as many quick resources for support compared to more established front-end JavaScript frameworks. Also, many developers may find it hard to use third-party Vuejs plug-ins  as they are mostly written in Chinese.

4. Ember.js - For building large web apps with a rich interface

Ember js framework

Ember is an open-source JavaScript UI framework built with MVVM (Model View-ViewModel) pattern. It offers full-stack development options with efficient debugging solutions.

Ember framework provides you with extensive ready-made features which means you get the best practices built-in to the framework. This enables front end developers to create large applications by writing fewer codes.

You can use elements from its huge collection of powerful add-ons and you can add your own elements to it as well. One of the major principles of the Ember framework is stability without stagnation.

Ember web apps give you deprecation warnings when a new version is about to be released. This gives you enough time to make your code transfer smooth and secure.

Moreover, Ember supports two-way data binding efficiently so it’s a reliable framework for complex user interfaces.

The disadvantages of using Emberjs for front-end development is that it has a complex syntax. The updates in Ember are also slower compared to other JavaScript frameworks.

5.  Svelte - A front-end JavaScript framework to use when you have a small development team

Like many other reactive JavaScript frameworks, Svelte too is a component-based framework but with vital differences.

Firstly, Svelte is a compiler. Using just the basic three languages, HTML, CSS, and JS, Svelte lets you build components with significantly less boilerplate compared to other frameworks.

In addition, Svelte works as a framework without a framework. It doesn’t run on the browser. Instead, you can run it as a compiled vanilla JS code. This eliminates the need for virtual DOM and results in exceptionally faster performers. No matter how great the size of the code is, your app works as if it has a pre-loaded code.

Lastly, Svelte has an in-built mechanism that identifies unused CSS selectors and helps developers get rid of all the unnecessary code. Developers working on the Svelte framework enjoy flexibility in writing code like no other framework.

However, it’s too simple a framework for building comprehensive web apps. It has a limited set of tools and the community support isn’t very strong either.

How to choose the right JavaScript framework for your web project?

Different front-end JavaScript frameworks have different pros and cons. A framework that yields good results for one type of project may not be as good for another type of web app. So it’s impossible to label any framework as the best one.

Choosing the right tech stack for your web app depends on the objective your app seeks to serve and the kind of functionalities you are aiming to provide the users with.

Choose Reactjs for building highly interactive single-page applications. Its robust tools make it easier to enhance the user interface with efficient widgets and other features.


We are a team of expert developers, testers and business consultants who strive to deliver nothing but the best. Planning to build a completely secure and efficient React app? 'Hire ReactJS Developers'.

Angular is the right choice for building enterprise scale apps that need complex features. Code reusability and static typing with TypeScript makes the development process for large apps much smoother.

Vuejs is a go-to choice for when you need a lot of flexibility in designing your web app. It’s also a great choice for time-sensitive apps as it provides faster development.

You can consider using Emberjs when you want to build large scale apps with rich interfaces. It offers you the best of both Angular and React while eliminating their limitations.

Lastly, as I mentioned earlier, Svelte is the best framework to build small web apps with a small development team. It has a limited set of tools and it has started gaining popularity only recently.

For expert guidance on which framework to choose for your next project, feel free to reach out to us here. We are a versatile team of business consultants and design-development experts who specialize in building robust web apps using JavaScript.

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Krunal Shah

Krunal Shah is the CTO and Co-founder at Third Rock Techkno. With extensive experience gained over a decade, Krunal helps his clients build software solutions that stand out in the industry and are lighter on the pocket.

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