Angular vs React: Which One to Choose in 2021?

12 min readDec 30, 2020

Angular vs ReactAngular vs ReactAccording to Statista, React and Angular are two of the most popular web frameworks among developers worldwide in 2020. But which one suits you best for you and your purposes?

At first glance, it doesn’t make sense to compare Angular vs React, as the first one is a framework, and the second is just a library. However, both names appear very often when it comes to developing interactive applications. Both are suitable for this, but their approaches are very different.

The programming of Internet applications has undergone a fundamental change in recent years. Earlier, entire packages (PHP / Apache Server or Java / JS / Tomcat) were necessary to develop complex Internet pages. Thanks to the introduction of modern Javascript frameworks, it is now possible to merge any programming languages and systems and with a front end to provide.

Previously the classic server-side development for the backend was PHP and Java, and client-side development for the frontend was Native Javascript. Today as much as possible, is done with Javascript. Nowadays. Angular and React have established itself as the standard for the front end, but not only.

Angular vs React — Statistical Comparison

According to NPM statistics, React is the leader in downloads and ratings compared to Angular in 2020.

At the Stack Overflow is the same situation at the moment of February 2020. React and Angular are still leaders among the most used web frameworks. As we see, React has here a bigger share than Angular too.

Even though React is leading, Angular developers are still in demand in the labor market. Have a look at Job Statistics on Github. Because when the framework is still popular, there will be no problem with job offers. No matter from what angle you are looking at.

However, the survey shows that every year more and more developers prefer to React over Angular.

What is Angular?

To start our short Angular review. I would like to mention that AngularJS was developed in 2009 by Mishko Hevery and Adam Abrons. Abrons soon left the project, but Hevery, who works at Google, continued to develop and maintain the library. The first version has the name today as Angular.JS.

That is why now we know Angular as a JavaScript framework developed by Google. The release was in September 2016. And of course, all important Google projects have been developed with Angular.

As I mentioned above, Angular is an MVC framework. So, it has specifications strongly on how the structures of the applications should look. Many so-called “out-of-the-box” functions are permitted. A major disadvantage of Angular is that it uses a regular DOM, and thus, the entire tree structure of the HTML tags is updated, which has a massive impact on the loading time of the application. Angular offers its Ionic framework for mobile applications.

Since Angular is written in TypeScript. So, it is recommended to use TypeScript for development too. However, depending on the developer, this can also be a disadvantage.

Best Angular Websites


This is probably the most famous example of using Angular. Gmail has a simple interface and is known for its smooth operation. Of course, Google uses Angular in creating other products such as Google Duo, Google Adwords, Google Assistant, Google Home, Google Analytics, etc.


PayPal provides electronic payment services in 203 countries and regions and works with 26 currencies. AngularJS developers of the company used a framework in the checkout system (PayPal Checkout), which consists of:

Upwork and

These websites are two of the most popular freelance portals globally, with millions of users and projects.


One of the world’s most visited websites is made with Angular 5. The website is working smoothly and has a fully responsive design. This corresponds to the principle for 100 years old magazine “Write once, use everywhere.”

American cable and satellite channel The Weather Channel got its website back in 1996. Today, according to SimilarWeb, is visited by half a million users every month. has many widgets that need to be downloaded for both desktop and mobile versions of the site. Obtaining data for widgets is implemented using AngularJS modules, which are located in a separate directory.

Who else famous uses Angular?

More examples of using the Angular framework you can find on the website

What is React?

React is a JavaScript library developed by Facebook. It was developed in March 2013. React is much more popular on Facebook than Angular on Google. Here you have significantly more freedom than with Angular. But React is not suitable for implementing an MVC architecture since it only has one view: you have to solve the model and the controller yourself. In this case, however, this offers almost only advantages.

A big advantage is that React uses a virtual DOM that only compares the previous HTML code differences and only loads the different part. This has a significantly positive effect on the loading times of the application. With React, the markup and the logic are handled in the same file, which means you can also output variables in a view component (JSX). React also offers a solution for mobile applications called React-Native.

Best React Websites


The role of ReactJS on Instagram is huge. Proof of this is numerous features such as geolocation, Google Maps API, search engine accuracy, and tags. And all this is in the API of the application — which is really impressive.


Netflix is also built on React’s version — Gibbon platform, used for low-end TV devices instead of the DOM for web browsers. Netflix even p ublished a post in 2015 that the ReactJS library helps improve performance, startup speed, modularity, and more.


The specialists of this service decided to use React to create user interfaces.


In the wake of the library’s popularity, in 2016, Dropbox made a redesign, which gave them a great performance.


Thanks to React’s use in the front-end, their interface is divided into several blocks and works quickly and organically.

More famous websites that use React?

This is, of course, not the whole list. But I’m sure you’ve found some of your favorites here already. We use them because they are powerful, user-friendly, and fast.

React vs Angular — What Do They Have in Common?

  • Both provide a basic framework for web development.
  • They are component-based and offer the possibility of breaking down an application into smaller components and writing them with a consistent API.
  • The great advantage of the components is that they can be reused, reassembled, and tested individually.
  • Both frameworks offer a mature, classic architecture for development in Javascript. With this architecture, cross-platform applications for Windows, Mac, and Linux can be developed. Compared to native applications, however, this architecture also leads to larger applications and higher resource consumption.
  • Both frameworks are subject to the MIT license and can therefore be used free of charge by everyone.
  • They also have in common that both have a large community behind them that maintain the frameworks.

Difference Between Angular and React


In terms of architecture, Angular is a full-fledged MVC framework that provides the developer with all the possibilities for out-of-the-box programming:

Unlike Angular React, it is a library that provides the only view, and how to implement the Model and Controller is at the discretion of the developer. Out of the box, only the following features are provided:

  • XML-like JSX language is used instead of templates as an add-on to JavaScript;
  • No introduction of dependencies;
  • Ajax requests;
  • Utilities for component testing.

Data Binding

Here the two technologies are very different from each other.

Angular uses the two-way binding. For example, if you change an interface element (user input) to Angular, the model’s corresponding state also changes. If you change the model’s state, the interface element changes — hence the two-way data binding.

However, React has only one-way binding. First, the state of the model is updated, and then it reflects the change of the interface element. However, if you change the interface element, the state of the model does not change.

Mobile solutions

Angular and React offer solutions for creating mobile applications. In the case of Angular, this is the Ionic framework, which uses the Cordova container that is built into Angular. However, the resulting application is simply a web application inside a web browsing container.

React doesn’t have such a React framework. React Native is a platform for creating truly native mobile applications.

Ease of learning

In the case of React, you need to learn JSX first, but it’s easy. Then you need to study the routing library, for example, react-router v4, and then the state management libraries — Redux or MobX.

Many topics need to be explored in the case of Angular, from basic ones, such as directives, modules, decorators, components, services, dependency inputs, pipes, and templates. This is followed by more advanced topics such as change detection, zones, AoT compilation, and Rx.js.

So, learning Angular is slightly more complicated than React.

Since Angular is written in TypeScript, to work with the framework, you need some time to learn TypeScript.

React uses JSX, which native Javascript developers should be familiar with. In comparison, the training period is easier and does not require as much preparation.


Angular provides a basic framework for building web applications and does not require any additional libraries. Due to the given framework, it is relatively rigid and inflexible as it is a complete framework.

React alone is usually not enough to build a web application. In most cases, it is recommended to use additional libraries. This, in turn, makes it flexible and easier to integrate into existing applications.


To capture all changes to the DOM, Angular creates a watcher for each binding. Every time the view updates, the new values compare with the old values. This can result in poorer performance in larger applications.

Since React works with a virtual DOM, if the view is changed, the new DOM compares with the virtual DOM and updates accordingly.

The great thing about open source frameworks is that they often provide many additional tools or libraries. Thanks to the active community and developers, there are a large number of extensions for both Angular and React that can be used for a wide variety of cases.

  • For easier bootstrapping of a project — Angular CLI and Create React App;
  • For the development of apps — Ionic 2 for Angular and React App
  • For design matters — Material Design and Material UI;
  • For the administration of states — @ngrx/store for Angular and Redux for React.

Angular or React — Who is The Best?

In contrast to React, Angular offers very clear structures and many features. It allows Angular development teams to move quickly to implementation without defining structures or looking for additional libraries in advance. However, it is often too overloaded for small projects and brings unnecessary ballast since Angular is so extensive.

React is recommended for projects whose results are front-end-heavy and interactive. React is also suitable if you depend on other libraries or if the developers already have experience with JSX. Since there are no clear structures, close cooperation between the development team is necessary. Also, React supports server-side rendering better, which makes the library SEO-friendly.

That is why we pick React because of its rendering optimizations and virtual DOM implementation.

Angular vs React: Tips for Choosing

On one side, Angular is a complete toolbox that offers you everything from development to testing when building a web application. And on the other side, React is a flexible library that requires support from other libraries for development.

Choose Angular if you need:

  • To develop a large and multifunctional application.
  • Reliable and scalable framework.
  • Real-time applications, such as chat or messaging applications.
  • Native apps, mashups, or web apps that are long-term and substantial investment projects.
  • Programming in TypeScript.
  • Object-oriented programming.

Choose React if you need:

  • Lightweight modern enterprise-grade applications in a short time.
  • Flexible work and secure solutions for website development.
  • To develop cross-platform or single-page applications.
  • To expand the functionality of an existing application.
  • Strong community support and solutions.

If you have chosen to work with React , we would like to show you a couple of our successful React projects. And yes, if you need anything — you know who to contact 😉

It is an online education app from Norway. It allows users to take driving lessons online and book driving programs. Also, your family and friends can monitor your progress. The front-end stack was written with the help of React.js.


This is a platform similar to Airbnb. The only difference is the type of renting space. Here you can find a garage, a working office, parking space, and other spare rooms. The front-end is built with React Native and presented in IOS and android versions.

SYNC.AI is another great project for a business communication toolkit of apps. The website has over 500K visitors a month. The smooth front-end interface was written with React.js and JavaScript.

To Sum Up

React and Angular differ in terms of interaction within the community. This is a key aspect for novice developers — if the community is large, active, ready to help newbies.

There is no definitive, up-to-date documentation for React. The product is open source, and daily new libraries appear there. For experienced developers, this is a definite plus, but it is not easy for beginners to understand the properties, functions, and processes of using new libraries. New React modules appear as developers solve a specific problem within his project and create a new library. Then he shares his best practices in the public domain, accompanying them with a short guide. If another developer has questions regarding the use of this library, he should ask the author.

Angular makes it easier to find the information you need. A beginner does not have to contact experts from the community. The product comes with detailed documentation with guidelines for it. If the documentation is not clear enough, you can consult with community members on any popular platform where developers exchange experience.

Choosing between Angular or React, specialists focus on the specifics of the project. Both approaches have strengths and weaknesses as well as a community of thousands of developers from dozens of countries. Both React and Angular are evolving and improving. React entered the market three years earlier, so the developers managed to improve it and make it more convenient to use. But Angular can quickly close the gap and offer users meaningful, unique benefits.

However, the right framework’s choice depends heavily on the project’s requirements and the development team. Therefore, it is advisable to ask yourself the following questions before making a decision and to use them to decide which framework is best suited for both the team and the project. Just, let’s talk business!

Originally published at