The Javascript Framework Debate: Svelte vs. React

For a comprehensive evaluation of Svelte versus React, it is crucial to weigh the pros and cons of both platforms, while factoring in the feasibility of switching from React to Svelte. Moreover, it is vital to recognise the unique aspects that make Svelte stand out. In the following post, we will delve into these concerns and provide you with additional information that enables you to make an informed decision.

Svelte, an open-source front-end compiler based on JavaScript, is available for use at no charge. As for React, it is a JavaScript framework designed for creating user interfaces and requires other libraries and scripts in order to function. This page offers a comprehensive comparison of Svelte and React.

Web developers have the duty of developing, designing, and coding effective websites, and often turn to JavaScript frameworks like Svelte and React for this purpose. Recognising the distinctions between Svelte and React is critical for web developers, as this knowledge can enhance their development capabilities.

How Svelte Differs from React.

Developer Rich Harris created Svelte, a front-end compiler in 2016, and made it freely available including the source code. Svelte compiles HTML templates to produce code that directly alters the Document Object Model (DOM), without incurring the overhead of a virtual DOM as is typical of traditional JavaScript frameworks like React.

Svelte’s methodology streamlines file transmission and elevates client performance through its compiler. By analysing the application code and integrating calls to update the data, UI components linked to the data can be re-rendered. Additionally, Svelte is based on TypeScript, which is a JavaScript superset.

When Should You Choose Svelte?

Svelte’s code is renowned for its clarity and resemblance to Vanilla JavaScript. Additionally, developers can achieve the same results with less code, making it a useful tool for those seeking to limit their website’s package size.

Svelte’s code proves particularly advantageous for devices that face limitations regarding storage or power capacity. This lightweight framework provides a more precise method for state, route, and infrastructure development, enabling developers to easily manipulate the Document Object Model (DOM) and apply reactive frameworks. As a result, businesses can broaden their reach and explore new opportunities.

What Companies Have Implemented Svelte?

Svelte is trusted by a multitude of well-known companies, including Yahoo, Rakuten, Bloomberg, Facebook, Apple, The New York Times, Square, ByteDance, Spotify, Reuters, Ikea, and Brave, among others, for managing their online presence. Svelte is a favourite among businesses because it can automatically translate their source code into high-quality, standard-compliant JavaScript as they create their applications. This means that Svelte-built applications benefit from accelerated performance that is unaffected by the framework abstractions that feature in other languages.

What Makes React Different from Svelte?

Developers use the React JavaScript library to produce user interfaces. Facebook Meta oversees UI component updates and maintenance, with a varied group of companies and engineers partnering to continually launch better and more advanced versions. React is employed for creating webpages, mobile applications, and server-rendered applications.

React excels at managing states and displaying them in the Document Object Model (DOM). Nonetheless, to create React applications, developers must be conversant in routing, client-side coding, and proper design patterns, and they need to utilize additional libraries.

When is the Ideal Time to Use React?

React is an impressive component library that excels at managing application states, making it easy to share data without needing to refresh the page across different React-enabled websites and applications. User interfaces with extensive user engagement are particularly well-suited to the React library.

React plays a crucial role in the Model-View-Controller (MVC) architecture as the ‘view’ layer. It simplifies the management of lower-level algorithms, requiring only the coding of the user interface’s view model. Additionally, React’s use of the Virtual DOM enhances website speed and accelerates loading times, making it an ideal and efficient framework for building user interfaces.

What is the Extent of React’s Utilisation Amongst Different Organizations?

React has become a top pick for user interface development, with wide acceptance on popular websites such as Facebook, Instagram, Salesforce, Shopify, Discord, Skype, and Pinterest. The abundance of highly-skilled developers from around the world has made React an attractive platform for companies seeking to develop the front end of their websites.

React is favoured by both developers and businesses due to its speed, ease and scalability.

Svelte vs React: Which is Better?

Unlike React, the newer framework Svelte bypasses the requirement for any supplementary software to operate. Determining the appropriate framework between the two can be a challenge for developers due to various factors to consider, including personal preference. To make this choice easier, let us compare these two frameworks and determine the best option based on your project requirements.


Utilising the conventional Document Object Model (DOM) necessitates reloading the application every time even the slightest change occurs in the code, which can render the process inefficient. The virtual DOM works as a memory cache, swiftly recording and loading any changes made to the user interface. Diffusion, also known as reconciliation, is implemented to delay updates until the ideal time for rendering and updating.

React leverages the Virtual Document Object Model (VDOM) to break down the application’s code into an organised tree structure during code execution, resulting in a smoother experience than what is achievable with regular JavaScript. While Svelte foregoes the VDOM diffing step, thus potentially enhancing the code execution speed even further.

Svelte is a compiler that relies on reactive programming to render the Document Object Model (DOM). With Svelte, any modification to the component stage caused by an assignment automatically updates the DOM, making the framework more responsive than React, which focuses more on a server-first environment. Consequently, Svelte provides a more agile and dependable user experience that can respond more quickly to user interaction.

Measuring a Bundle

With its lightweight and high-performance features, Svelte stands out among other popular JavaScript frameworks, including React. Its compressed Gzip bundle size is a mere 1.6 kilobytes, remarkably smaller than React and ReactDOM, boasting a bulky 42.2 kilobytes. This translates to faster loading times, improved responsiveness, and reduced bandwidth costs, while also providing developers with a cost-effective solution for web application development.


End-to-end testing offers an effective method of verifying the React code in software applications. When the React code is run through a functional browser, the software’s time-to-market decreases considerably, elevating its overall worth.

Svelte, an agile testing library, offers advanced testing capabilities to assist developers in maintaining their code tidy, streamlined, and concise. It offers elementary mathematical operations comparable to those found in React, making it an advantageous asset for developers aiming to declutter their code and minimise redundant complexity.

Assisting One Another

React, being one of the most commonly-used JavaScript platforms, has a thriving development community. To guarantee the platform’s continued efficiency, the React development community offers an abundance of resources, such as documentation, guidelines, updates, and components, amongst others.

Given that a massive corporation such as Meta (formerly Facebook) is providing support for React, the demand for React developers will remain robust.

Although it has yet to be widely adopted, the Svelte development framework has garnered encouraging feedback among developers. As of now, enterprise-level support for Svelte is still in its early stages, with Sveltekit 1.0 yet to be launched. In contrast to the substantial number of active React developers, which amount to an estimated 287,500, the Svelte community is still relatively small.

How Does Svelte Compare to React?

Once the project’s scope has been defined, selecting between Svelte and React is a simple task. To reap the benefits of enhanced performance sans Virtual DOM, reduced bundle sizes, and more coherent code, selecting Svelte for your applications is a wise decision. Svelte is a lightweight framework that expedites the website building process.

If you are developing a project utilising React, it’s considerably easy to find experienced developers to work on it. Furthermore, React’s friendly interface and plethora of features make it simple to maintain your application’s integrity while the active React developer community is readily available to address any questions or issues efficiently.

Businesses looking to build reliable applications using React and Svelte recognise the importance of hiring experienced programmers. At Works, we can now offer skilled and cost-effective remote software engineers to our clients. For further information, please visit our hiring page.

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