Svelte Vs. React: Which Is Better Framework For Your Upcoming App

Looking for the right front-end JS framework for your upcoming app development? Check out our detailed Svelte vs React comparison to see...

Written by Niel Patel · 5 min read >
Svelte Vs. React

Many front-end developers are confused about using Svelte or React as the framework for their app development. Whether to choose between React and Svelte is the biggest question. React and Svelte is an amazing options when it comes to web development. 

Comparing svelte vs react lets us easily gain more knowledge regarding the best framework for app development. React is one of the popular JavaScript libraries for easily creating as well as building the UI. 

React is open-sourced software that has been useful for building reusable components. Svelte is an amazing framework for easily building lightweight applications. These are compilers used for translating the JavaScript code in apps.

Popular Framework For Your Upcoming App:

React and Svelte are the most reliable and preferred JavaScript frameworks by developers. These involve building web apps with a productive approach. React is seen as an automatic choice for front-end devs, and React attained the #1 spot for web frameworks. 

Svelte also provides massive features in the framework. Some front-end web developers also faced a dilemma about choosing a perfect framework for the web page. Svelte and React are highly preferred by web developers among JavaScript frameworks or libraries.

What Is React?

React is the most reliable front-end JavaScript library used for easily creating the best User Interface. These can be easily used for lightweight and complex apps. In 2011, Facebook created React, and now it has been maintained by Meta along with a community of developers. 

These are completely open sources and free software, which gives the added feature. Many companies such as Facebook, Instagram, Airbnb, and many other companies also have been using React. 

The react framework uses Virtual DOM, and these involve JavaScript representation on actual DOM. These are suitable options for exchanging the data, so this does not require reloading. 

Many developers have been using React as a front-end JavaScript library for building UI. Meta maintains UI components, so the community of developers has been working together to improve the versions. 

Typical examples of applications built with React are-

  • Video streaming applications
  • Desktop-based applications
  • Web-based applications
  • JAMstack WebPages

When Should Developers Use React?

React can be efficiently used for State Management. These involve the exchange of data but do not require reloading features. React is user-friendly, along with the coding required for the interface’s view model. These extensively use the virtual DOM for a look-perfect method for making changes on the actual DOM.

  • Flexible component library
  • Enables cutting the development cost
  • Perfect for state management
  • React components can exchange data without reloading the page
  • ‘View’ in model-view-controller
  • Managing lower-level algorithms
  • Lots of user interaction
  • Coding is required for the interface’s view model
  • Improves website performance
  • Reduces lags
  • Enhances loading times

Which Companies Use React?

Many numbers of successful organizations have been using React for app development. Some of the companies are

  • Meta
  • Instagram
  • Discord
  • Skype
  • Pinterest
  • Salesforce

Many companies have preferred to use React for creating front-end attributes on websites. React is one of the fast and easy-to-implement frameworks suitable for developers and organizations.

What Is Svelte?

Svelte is one of the popular front-end JavaScript frameworks preferred by many developers. In 2016, Svelte was introduced as open-source and free software. Svelte is involved with the compilers for translating the JavaScript code in the apps. Svelte is used to make the apps faster and tiny. The Svelte developer’s community has been maintaining the framework.

Svelte involves building the components with user-interactive aspects. Svelte is one of the most effective frameworks compared to React. 

Typical examples of applications built with the Svelte are:

  • Websites with single pages
  • Applications with interactive visuals
  • Applications developed with the restricted internet connection

When Should You Use Svelte?

Svelte becomes one of the popular options resembling JavaScript code. Svelte makes it easy to learn for those who are well-versed in JavaScript. 

Whether the company wants a smaller package size design, then Svelte is an amazing option. Various programs are written the same when device power is low. Framework abstractions with the Svelte also do not have an effect on the performance of apps. 

Svelte is the modern JavaScript framework to:

  • To build static web apps
  • Fun for developers to use
  • Building customized infrastructure
  • Svelte to build single and reusable components
  • Fewer lines of code
  • Small package size for the website
  • DOM manipulation
  • Reactive frameworks
  • Emerging markets

Programs written based on the Svelte will be useful for the apps in low-power or low-capacity devices. These tools and frameworks give enhanced control over state management.

Which Companies Use Svelte?

Many companies rely on Svelte for their websites. These companies especially prefer Svelte as they are efficient options for converting application code into ideal JavaScript. Framework abstractions do not hamper the performance level of applications. 

A few companies which have been using the Svelte for their web pages are:

  • Yahoo
  • Bloomberg
  • Rakuten
  • The New York Times
  • ByteDance
  • Spotify

The Comparison: React’s Virtual DOM Vs. Svelte Compiler

Normally, React uses the virtual DOM for interpreting application code on the runtime. These would be automatically bundling the specific amount of overhead code. These would be running on the browser’s JavaScript engine for monitoring as well as updating DOM. 

Virtual DOM is a significant option for watching any changes as well as calculating possible methods in real DOM. Svelte is involved with the Compiler, which translates the applications into JavaScript code. It also ensures the program runs in DOM without overloading the framework. 

Svelte translates components that are efficient with imperative codes. This was updated with DOM and achieved exceptional performance. These do not require virtual DOM, but codes can be easily compiled within a short time. 

  1. React Vs. Svelte: Ease Of Use:

The ease of use of React vs. Svelte framework is quite an important aspect to consider. React is widely used, and learning the framework is quite a daunting task. You need to know about JSX and CSS-in-JS for building the applications. 

Svelte is simpler to understand and learn compared to React. A major portion of Svelte will be in the form of plain JavaScript, CSS, and HTML. 

The Svelte sticks with JavaScript’s classic web development models, along with introducing a few extensions on HTML. Below is the example for demonstrating the Svelte component


  let name = 'Nefe';


<h1>Hello, {name}!</h1>


  h1 {

    color: green;


  1. Svelte Vs. React: Developer Experience

For developers, less code is not always the best option. More numbers of functional codes will take only less time to write the codes in Svelte. React has 19 codes, and Svelte has 8 lines of code. 

It gives a significant difference between these aspects. The svelte framework does not require more code to write, but it is also not less functional. There is no need to worry about forgetting to export components with Svelte.

  1. Svelte Vs. React: Server-Side

Server-side rendering (SSR) involves the application’s ability to convert the HTML files in the server along a fully rendered HTML page. Normally, the server would send the fully rendered HTML, JavaScript, and CSS to the client. 

Server-side rendering is equipped with massive advantages, like the faster initial page load time. These pages are quite optimal for the user with a slower internet connection. The developer can easily view the rendered HTML. 

SvelteKit involves a full-stack svelte framework. These are suitable options for building the website with Svelte.

SvelteKit has more numbers of features like: 

  • Layouts
  • Routing
  • API endpoints
  • Static site generation
  • Server-side rendering
  1. React Vs. Svelte: Performance

For running the app built on the svelte framework, the Svelte is suitable for compiling the codes. These are highly-optimized vanilla JavaScript. There is no need to add the framework in the runtime. 

It improves the application’s overall performance, so the browser requires less work for processing. Svelte updates DOM even without relying on a middleman or complex reconciliation techniques. Traditional Document Object Model (DOM) triggers even with changes in codes. 

Virtual DOM speeds up the process by enabling temporary memory storage on changes made. React uses Virtual DOM to reduce codes in the app. Svelte has a compiler that carries DOM rendering using reactive programming. Svelte is performance-oriented, ignoring the VDOM process. Below is an example of the Svelte code:


let count = 0;

  $: doubled = count * 2;

  function handleClick() {

    count += 1;



<button on:click="{handleClick}">Click me!</button>

<p>{count} doubled is {doubled}</p>
  1. Svelte Vs. React: Bundle Size

Normally, the Svelte. gzip version only involves 1.6 kilobytes size. But the React. gzip combined with ReactDOM have a total of 42.2 kilobytes size. Svelte has a smaller bundle size for providing reduced bandwidth costs and higher loading speeds. You can also hire react developer for app development using a high-end framework.  

  1. Svelte Vs. React: State Management:

Comparing React vs. Svelte for state management is an important part. React’s state management will be involved in the unidirectional data flow. These involve states passed from parent components to child components. These are unique approaches leading to complex code. 

Svelte uses the reactive approach for state management. UI automatically updates with data changes, so this makes managing applications easier with Svelte.


React is quite more popular than Svelte with proper community and packages compared to Svelte. Svelte has improved the framework used for creating lightweight applications. React uses the virtual DOM, but Svelte uses a compiler. Svelte is faster compared to React.

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