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Learn Svelte

Write less code and let the compiler do the heavy lifting.

Free to start. Built from a single prompt. No credit card.

Svelte is a front-end framework that works as a compiler: it turns your .svelte components into small JavaScript at build time instead of shipping a large runtime to the browser. A component is one file with a script block, plain HTML markup and scoped styles. Svelte 5 introduced runes such as $state, $derived and $effect, which make reactivity explicit while keeping code short. SvelteKit adds file-based routing, server-side rendering and data loading for full apps. Beginners who know HTML, CSS and JavaScript tend to find it approachable. Learnr builds a personalized Svelte course and teaches it in bite-sized lessons.

How to learn Svelte, step by step

Refresh HTML, CSS and modern JavaScript. Svelte stays close to the web platform, so solid HTML, CSS, array methods and modules matter more than framework tricks. Weak fundamentals show up quickly in component code.
Work through the official interactive tutorial. The Svelte tutorial on svelte.dev runs in the browser and covers each feature with a small exercise. Do it in order and type the solutions yourself instead of clicking the reveal button.
Learn runes as the core of reactivity. Declare state with $state, compute values with $derived and run side effects with $effect. Build a shopping cart total to see that derived values update automatically without extra code.
Compose components with props and bindings. Pass data down with $props, use bind:value on form inputs and lists with {#each} and keyed items. Make a filterable list so these pieces have to work together.
Build a real app with SvelteKit. Create a project with npx sv create, add pages under src/routes, load data in +page.js or +page.server.js, and handle a form with form actions. Deploy with an adapter for your host.
Keep practicing in small daily doses. Svelte has few concepts, but Svelte 4 and 5 syntax differ, so regular review prevents mixing them. A quick Learnr lesson each day keeps runes and SvelteKit file names straight.

What you'll learn

Write components with markup, script and scoped styles
Manage reactivity with $state, $derived and $effect
Pass data with $props and handle events and bindings
Use {#if}, {#each} and {#await} template blocks
Build routes, layouts and load functions in SvelteKit

What's inside your Svelte course

A sample path Learnr builds for Svelte. Your real course adapts to your goal and level.

1. How Svelte compiles and a first component
2. Runes and reactive state
3. Props, events and two-way binding
4. Logic blocks, transitions and shared state
5. SvelteKit routing, layouts and loading data
6. Forms, deployment and a finished project

How long does it take to learn Svelte?

With JavaScript basics, most learners build simple Svelte components within 1 to 2 weeks and a full SvelteKit app within 1 to 3 months at 5 hours a week. New-to-JavaScript learners should add a couple of months.

What you need before you start

HTML, CSS and JavaScript fundamentals, including functions, arrays, objects and modules. Basic npm and terminal use for running a dev server.

Common mistakes to avoid

Following older Svelte 4 tutorials that use let and $: for reactivity, then mixing them with runes. Check which version a guide teaches.
Using $effect to sync one piece of state into another. Use $derived for computed values and save effects for real side effects.
Skipping SvelteKit's server and client split and leaking secrets into client code. Keep private keys in +page.server.js or server-only modules.

How Learnr builds your course

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Move through bite-sized lessons and interactive practice, earning XP and keeping your streak.

Svelte questions, answered

Is Svelte easier than React?

Many people find Svelte quicker to learn because components look like plain HTML and need less boilerplate. React has a larger job market and ecosystem, so the better choice depends on your goals.

What is the difference between Svelte and SvelteKit?

Svelte is the component framework and compiler. SvelteKit is the application framework built on it, adding routing, server rendering, data loading and deployment adapters.