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Svelte Vs React: Which JavaScript Framework Is Better?

Krunal Shah

Sep 15, 2021

7 min readLast Updated Dec 18, 2023

Blog Summary: Svelte and React are two of the most adopted frameworks among developers. But, which one is better for your use case? Let’s know it better in this detailed blog. We are going to cover -

  • What is React?
  • When should you use React?
  • Which companies use react?
  • What is Svelte?
  • When should you use Svelte?
  • Which companies use Svelte?
  • Comparison between Svelte and React
  • Conclusive thoughts

The world of web development is constantly changing, and with that comes the ongoing debate of which platform is superior in terms of performance. Svelte and React, both JavaScript frameworks, are currently at the forefront of this discussion. Both have their own unique features, making it a "clash of the titans" in the realm of app development.

While React has long been considered a leading JavaScript library, Svelte has recently emerged as a strong alternative. It has a different approach to handling web pages during development.

In this article, we will compare React vs Svelte on various parameters and determine which one is better. Furthermore, we will also delve into the key features of both frameworks. Without further ado, let's dive in.

Also Read: How To Choose A Technology Stack For Web Application Development

What Is Reactjs?

React.js is known for its high flexibility as it is an open-source JavaScript library. So, if you are looking to build complex and light-weight business applications, React.js is the best platform for your business.



In addition to flexibility, the platform allows quick rendering of pages making the web-pages SEO friendly. Also, its component-based architecture makes it easy to manage and organize code, making it a great choice for building large, maintainable apps.

When Should You Use React?

Below are some of the top applications and use cases for React.

Single-Page Applications (SPAs) as it provides a powerful set of tools for building dynamic, responsive UIs

Cross-platform applications, such as mobile apps, as it allows developers to use the same codebase for building apps on different platforms

eCommerce websites, financial and administrative platforms and other web apps that require high performance, scalability and security

Large-scale web applications

✅Complex user interfaces

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Which Companies Use React?

React is a popular JavaScript library for building user interfaces, and many well-known companies use it. Some examples include:

👉Facebook (who developed and open-sourced the library)















This is by no means an exhaustive list, but it gives you an idea of the variety of companies that use React.

Also Read: Top 10 Famous Websites Built with React JS in 2021

What Is Svelte?



Svelte converts and compiles UI components into highly efficient code that updates the Svelte DOM. With Svelte DOM, it is easier for developers to build intuitive UI interfaces. So as far as performance comparison is concerned, Svelte has excellent performance characteristics.

When Should You Use Svelte?

✅Small to medium-sized web applications and projects. Its small bundle size and lack of runtime overhead make it an efficient choice for these types of projects.

✅Building web components and libraries that can be easily integrated into other projects. It provides a powerful set of tools for creating reusable components.

✅Progressive Web Applications (PWAs) building as it allows you to create performant, offline-capable web apps that can be installed on a user's device.

✅Svelte's reactive programming model and its ability to handle complex state management make it a great fit for building dynamic user interfaces and real-time web applications.

✅Svelte is a good choice for developers who want to have full control over the codebase and bundle size, as it does not rely on any external runtime libraries. This makes it easier to understand and optimize the code, which can be beneficial for long-term maintainability.

Which Companies Use Svelte?

Svelte is a relatively new JavaScript framework, but it has been gaining popularity in recent years. Some companies that use Svelte include

👉The New York Times



However, it's worth noting that Svelte is not as widely adopted as some other popular JavaScript frameworks such as React or Angular, so there may be fewer known companies using it.

Comparison Between Svelte Vs React

Svelte vs React


After taking a glance at React and Svelte, let us dive deep and understand Svelte Vs React thoroughly. Here are the top factors to help you understand Svelte vs React performance better.

1. Performance

Reactjs improves performance through reusable components, leading to a more consistent development process with less code clutter. Additionally, it uses optimized coding to enhance user experience and app performance.

Svelte, on the other hand, reduces runtime and improves navigation speed. It also provides flexibility for developers to create high-quality code. As a business owner, you don't have to worry about the complexities of Virtual DOM with Svelte, resulting in powerful and sophisticated apps.

Also Read: Does Your Web Application Need A Front-End Framework?

2. User experience

When comparing the user experience of Svelte vs React, React offers ultra-fast loading speeds which improves the user experience. This can lead to increased customer loyalty. As a CTO, using React creates a beneficial situation.

Svelte, on the other hand, offers component-based UI design making it great for building lightweight apps. It also improves page speed by removing the need for virtual DOM loading. Svelte also enhances the response time.

3. Code Maintainability

As React is component-based, it emphasizes customizing the UI and creating functional and reusable code snippets. This allows for code to be used in other apps or modules, increasing team productivity and efficiency.

Additionally, as a business owner, you don't have to worry about onboarding new developers as the platform has organized coding patterns and components that make it easy to learn. The developers will feel at home with React and it increases the maintainability of the code.

The components of Svelte have a readable structure that helps in defining different app components. So along with acting in performance comparison, the platform helps the developers to maintain the code as well. With Svelte, different pieces of a web application like buttons, forms, etc. work together easily.

4. App Size

As an IT business owner, you need to understand that Reactjs is a fully featured frontend framework. Thus, it is easier to build bigger and more complex applications using React. Moreover, with the latest development, it is easier to reduce the app size by 30% using React JS.

Svelte is widely used in creating small-sized applications. Thus, it is the most accessible JavaScript component library and it runs the development process in a better way.

5. Faster development

React has a reputation of being the fastest framework. Thus in the race of Svelte Vs React, React has some edge. All you need is a team of developers who are familiar with the basic JavaScript concepts. Once you know this along with configuration caveats, etc. the speed of development increases.

With Svelte, the developers can develop more advanced features easily. In addition, they can separate the app structure and the design HTML markup. The framework here has a superlative data structure and design functionality also. Moreover, with the clear separation of front-end control and functioning, it is easier for the developers to have faster development.

6. Testing

Testing is an important factor while discussing React vs Svelte.Reactjs facilitates testing by providing test runners, allowing QA teams to easily identify issues in real browser settings. This decreases the time-to-market of the app and improves overall productivity.

Svelte also offers a testing library for unit testing that is smaller and has less complex computations. If you are looking for a "lean web" option, Svelte is the way to go.

Concluding Thoughts

It is clear that both Svelte and React have their own distinct advantages and disadvantages, making it a difficult choice for CTOs to decide which platform is best for their business requirements.

The decision ultimately comes down to the nature of the app being developed. Both frameworks are based on a component-based architecture, which is known for improving user experience. Therefore, it is important for CTOs to carefully evaluate their options and make an informed decision when selecting a framework.

However, React Native should be your choice if you want to develop a high-quality product within your budget. Furthermore, React community tools and practices help aid in high product quality further.

All you need to do is choose a top-notch product development solution to ensure high quality product development. We, at Third Rock Techkno, offer a dedicated React Native development solution that not only accommodates your every product development goal, but also helps you get several competitive advantages. Check out our portfolio and contact us to get started today.


1. What are the advantages of Svelte framework?

The top advantages of Svelte framework include - less boilerplate code writing, easy variable creation, better code optimization, and high performance.

2. What are the advantages of React framework?

The key advantages of React framework are faster rendering, reduced loading times, cross-platform compatibility, and UI-centric designs, to name a few.

3. When to use Svelte framework?

Svelte framework is suitable for building fast, lean, and easy-to-use web apps.

4. When to use React framework?

React framework is suitable for building interactive UIs and web applications.

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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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