Top 10 Websites Built with React.js [Best React Websites]

Developer Usage & Global Impact

As per a report by Statista, it was the second most used JavaScript-based front-end development technology in 2023, overtaking jQuery, with 42% of developers reported to be using it.

As of 2025, it has over 233k stars on GitHub and over 1600 contributors. This huge community plays a crucial role in its evolution.

It powers over 14 million applications across the globe. This number also includes some of the biggest and most influential tech giants. (BuiltWith, 2024).

1. As of 2024, it has over 221k stars on GitHub and over 1500 contributors. This huge community plays a crucial role in its evolution.

2. It powers over 14 million applications across the globe. This number also includes some of the biggest and most influential tech giants. (BuiltWith, 2024).

Why Reactjs?

ReactJS development allows developers to build interactive, responsive web applications with reusable components. This is why it is hailed as one of the most powerful JavaScript libraries in the current era for developing modern web applications. Several factors made it a popular JavaScript library. Below are a few of them:

Declarative:  Since it is declarative, it provides a very simple way to develop interactive user interfaces.

Reusable components: The components we code using React.js can be reused, thus breaking complex logic into multiple smaller parts.

Virtual DOM: With React, we usually communicate with the virtual DOM (a copy of DOM saved in memory), which improves the application’s performance as it works by activating the individual component on the virtual DOM instead of reloading the whole page.

React.js is easy to grasp: Nowadays, simplicity and the learning curve are significant factors behind programming language growth.

A great number of pre-built libraries: It has so many pre-built libraries that can speed up development time.

Strong community support: React has a huge community of developers, so you can collaborate and get help from supporters around the world.

Top 10 ReactJS Websites [in 2025]

ReactJS established itself as a dominant force in front-end development, evidenced by its extensive adoption among industry leaders like Facebook and Netflix. 

These companies leverage React’s component-based architecture to create dynamic and user-centric application UIs.  With over 14 million websites built with React, it is a mature, popular technology.

1. Facebook

How many of you use Facebook? Facebook is one of the biggest social media platforms in the world, with over 3 billion users. So what tech does it use? It leverages ReactJS to build many Facebook web apps. ReactJS's creator is none other than Facebook software engineer Jordan Walke. And, of course, Facebook uses ReactJS for its main site.

With ReactJS, Facebook was able to build a dynamic user interface. This move has done away with the traditional news feed, which previously required the page to reload every time users interacted with in-page elements.

2. Instagram

Instagram is one of the most popular social media platforms, facilitating photo and video sharing while connecting millions of users worldwide.

Similar to Facebook, Instagram has also utilized ReactJS in its front-end development. React, alongside Backbone. Router forms the backbone of Instagram's web page. Notably, features such as geolocation services, integration with Google Maps APIs, and precise search functionality highlight the extensive utilization within Instagram's framework.

3. Netflix

Netflix is a subscription-based streaming service that lets users watch TV shows and movies. It features a clean, uncluttered homepage and a well-designed UI.

Netflix Likes React!, This blog gives details on why the world’s leading streaming entertainment service provider adopted ReactJS.

In a blog post, Netflix revealed why they chose to adopt ReactJS:

We were able to leverage the following features to improve our application’s initial load times, runtime performance, and overall scalability – Netflix development team.

In its blog post, the company states that it used ReactJS to improve application startup load time, runtime performance, and modularity. The world’s leading streaming service provider significantly improved the application startup load time, runtime performance, and modularity by using ReactJS.

4. Asana

Asana is a popular project management tool that helps individuals and teams to keep track of tasks. Its legacy framework (Luna1) was difficult to maintain and lacked these benefits. This resulted in a poor user experience as the tours were not very engaging.

The FX team Asana leveraged ReactJS to make first-time visitors' experience flawless. React offered a more stable and performant environment, allowing the FX team to create more interactive and effective product tours (Coachmarks) that users were more likely to complete.

In the blog published by Asana in 2018, they described how the company leveraged ReactJS development to build a high-performance web application that enhanced the first-time visitor experience.

5. Salesforce

Salesforce is the world’s leading customer relationship management (CRM) platform that offers cloud-based solutions to millions of businesses across the globe. It helps marketing, sales, commerce, service, and IT teams to connect, create, and manage sales and marketing campaigns.

Visualforce is a framework, developed by Salesforce, that allows developers to build custom user interfaces. With the goal of enhancing user experience, Salesforce used ReactJs to speed up rendering for Visualforce pages and greatly benefited from the use of the React.JS library with its incorporation into this platform.

6. The New York Times

The development team at the New York Times was dealing with multiple codebases written in different languages for desktop, mobile, and other products. This made it difficult to maintain and develop new features.

With React and Relay, they were able to create a single system for managing UI components and fetching data from various sources using GraphQL. 

7. Dropbox (HelloSign)

Dropbox is a popular file-hosting service that lets you store and share files online. It also features some amazing in-built features, such as HelloSign, an innovative solution that lets you sign documents within the app.

With the existing tech stack, the Dropbox team encountered a problem where the files supported for the signing were not opening in many browsers. Also, the team realized that it was time to adopt new technology that could help improve fidelity between the editor and increase the application performance and the editor’s usability.

Subsequently, the team decided to overhaul the signer with React. The decision to shift from JQuery to ReactJS first appeared to be quite daunting; nevertheless, it turned out to be fruitful, as it led to a substantial enhancement in HelloSign's functionality and performance, taking it to the next level.

8. Yahoo Mail

Yahoo mail has been around for the past two decades. In early 2017, Yahoo mail got a new rich interface made upon switching their old tech stack that included libraries such as KnockOut, Durandal, and Rivets and embracing React.JS + Flux to improve the old bland user interface for developing a next-gen user-friendly and dynamic interface.

9. Instacart

Instacart is another well-known platform that uses React. JS. It's a well-liked website that lets customers use a website or app to place orders from a particular store and have the goods delivered online. When the company's customer base and partners expanded significantly over time, it moved from Backbone, jQuery, Underscore, and Haml to ReactJS to improve its performance.

10. Reddit

Reddit was developed back in 2005 and was later released on the web in 2006. It's often referred to as the "front page of the internet," a website that connects individuals and allows them to engage in discussions and ask for help with a specific problem. Based on a report by a former senior software team lead at Reddit, the company began utilizing the ReactJS library in 2014, and a significant number of the website's front-end elements are also constructed with ReactJS.

Technical Foundations Behind Top React Websites

If you're going to build high-performance React apps, it's important to get the most out of every aspect. Not only is performance vital to speed, but it also makes for a better user experience. For more info on how to make your apps perform even better, see our article on React JS Performance Optimization.

1. Server-Side Rendering (SSR)

Server-side rendering (SSR) is where the server renders React components before it sends the HTML to the client. This results in faster initial load times because users are seeing a fully rendered page immediately. It also makes everything faster and easier to access, particularly if you've got a slow connection. Frameworks like Next.js use SSR to integrate this process seamlessly into React apps.

2. Hydration

After the Server-Side Rendering (SSR) renders the HTML, the client-side React library must hydrate the pre-rendered content. This hydration process attaches event listeners and restores interactivity to the static HTML on the client side, turning it into a fully interactive webpage. This step is essential for preserving dynamic behavior without sacrificing the speed benefits of the SSR.

3. Performance Optimization

In addition to server-side rendering (SSR) and hydration, many other performance optimization methods are used to ensure smooth operation. These strategies not only speed up load times but also enhance the responsiveness and fluidity of the user experience. For example, techniques like code splitting, lazy loading, and caching reduce the initial bundle size, meaning that only the application components that are actually needed at the time are loaded.

Conclusion

React’s popularity and adaptability are on full display with all these React.js powered websites. But their success is also due to powerful technical approaches, including server-side rendering (SSR), performance optimization, and hydration.

Plus, there's a lot of performance tuning going on. SSR doesn’t just make things run faster; it also gives SEO a boost. Do you want to build an SEO-friendly and lightning-fast website using React? We, as a React development company, develop high-performance websites using cutting-edge technologies such as React.js.