From React to Svelte: A Simpler, Faster Way to Build for the Web

For a long time, React and Next.js were my primary tools for creating web applications. Their widespread use, strong community support, and flexible component system made them a reliable choice. However, over time, I began to notice some drawbacks. Too much repetitive code, complicated ways to manage data, and a feeling that I was spending more time working around the framework than building my project. I wanted a tool that made development easier and faster without losing the ability to create high-quality, efficient applications.

That’s when I came across Svelte — first through Fireship videos, which led me to explore it further. What I discovered was a framework that tackled many of the issues I faced with React while making development enjoyable again. This article reflects my experience with Svelte version 5, the latest version at the time of writing. Let’s start by looking at the challenges I encountered with React before explaining why Svelte became my preferred choice.

Challenges I Faced with React

Slow Performance in Complex Interfaces

In one project, I worked on an employee management system that included a permissions page. This page had about 50 permissions, each with three checkboxes — edit, delete, and view — totaling 150 checkboxes. Each checkbox was linked to a state, and whenever a user clicked one, the page took around two seconds to update. There was also a search box to filter permissions, but typing in it caused a delay with every keystroke, making the experience frustrating.

The issue stemmed from how React updates the screen. When data changes, React compares a virtual version of the page (virtual DOM) with the real one and redraws anything that’s different. With lots of interactive parts, this can slow things down. Svelte, on the other hand, updates only the exact pieces that change, thanks to its signal-based system. This makes it much faster, even when handling hundreds of inputs like in my permissions page.

Larger File Sizes Affecting Load Times

Another problem with React was the size of the files it created. Even a basic React app comes with about 50–60 KB of code, mostly because of the virtual DOM and other built-in features.

Svelte takes a different approach — it turns your code into plain, efficient JavaScript during the build process. For a simple app, this can result in files as small as 3 KB. Without the extra baggage of a virtual DOM, Svelte apps load quickly and run smoothly.

Too Much Setup and Boilerplate

React’s way of doing things is powerful, but it often requires a lot of extra steps. Managing data, setting up navigation, or fetching information from a server meant writing more code than I’d like — or constantly checking the docs to remember how. Even with Next.js, which simplifies some of this, it started to feel like I was working for the tool instead of the tool working for me.

React makes you feel it’s the only way to build software.

What Makes Svelte Different and Better

Easy Data Management

In React, keeping track of data can get complicated. You might use useState for small things, but for bigger scenarios you could end up needing the Context API or a separate library like Redux or Zustand. Each option adds more steps and decisions. Svelte makes this much simpler with its ability to make state global. To create a shared piece of data in Svelte 5, you just write:

export const myStore = $state({ items: [] });

You can use this store anywhere in your app, and it updates automatically when the data changes. It’s like having a lightweight version of Redux built right into Svelte — no extra setup needed. No adapting to each project’s state management library of choice; it’s all just Svelte.

Simpler Input Handling

Forms in React require you to write code to track every change in an input field. To create a controlled input, you’d need something like this:

const [name, setName] = useState("");
<input type="text" value={name} onChange={(e) => setName(e.target.value)} />

This gets repetitive fast, especially with lots of fields. Svelte makes it easier with built-in two-way data binding:

<script>
  let name = $state("");
</script>

<input type="text" bind:value={name} />

The bind:value line connects the input to the name variable directly. When you type, name updates, and if name changes elsewhere, the input updates too. You also have bind:checked, bind:group, and you can even make a prop bindable using the $bindable rune. It’s a cleaner, faster way to handle forms.

Handling Nested Data Without Extra Work

In React, updating layered data — like an object inside an object — can be tricky. You have to make a copy of the data first:

const [data, setData] = useState({ location: { country: { city: "New York" } } });
const newData = { ...data };
newData.location.country.city = "Boston";
setData(newData);

This is unpredictable, because if you change the state directly it won’t work. It takes extra effort and can lead to mistakes. Svelte handles this automatically with its reactive system:

<script>
  let data = $state({ location: { country: { city: "New York" } } });
</script>

<button onclick={() => data.location.country.city = "Boston"}>Change City</button>

Svelte updates the page efficiently without you needing to manage copies. Working with complicated data feels natural and straightforward.

Built-In Motion and Effects

Adding animations in React usually means bringing in extra tools like Framer Motion or GSAP, which add more code to download and learn. Svelte has animations built in:

<script>
  import { fade } from 'svelte/transition';
  let show = $state(true);
</script>

{#if show}
  <div transition:fade>This fades in and out</div>
{/if}

<button onclick={() => show = !show}>Toggle</button>

This creates a smooth fade effect with almost no effort. Svelte offers other transitions like sliding or scaling, and they all work with the framework’s reactivity system. It’s a lightweight way to make your app feel polished without pulling in extra tools.

Why Svelte Wins for Me

Svelte solves the performance problems I saw in React, keeps file sizes small for faster loading, and simplifies tasks like managing data and adding effects. Beyond the technical benefits, it brings back the fun of creating web applications. I spend less time fighting with the framework and more time bringing my ideas to life.

The biggest benefit most people talk about is the developer experience — and it’s something you won’t fully understand until you try it.

I recommend giving Svelte a shot. It’s approachable, efficient, and a combination that’s hard to beat in today’s web development world.

Thanks for reading till the end.