Svelte & SvelteKit: The Complete Guide [2025 Update]

[UPDATE 1/2/2024] Svelte sections are now completely updated to Svelte 5. Currently working on updating SvelteKit sections. However, unlike Svelte, SvelteKit did not have a lot of radical changes. So the current version is still watchable. You might just find some Svelte 4 syntax here and there.

[PLEASE NOTE] The current duration of the course is currently not accurate as there are old sections that are going to be removed soon. These sections have [OLD VERSION] in their title.

[UPDATE 23/10/2024] Svelte 5 is now out and I am currently working on updating the course. Will release new sections gradually during the upcoming months.

NOTE: The duration of the main content of the course is about 17.5 hours. The rest is for creating the Spotify app.

Svelte is a JavaScript framework that allows you to build state driven components. However what makes Svelte different from other frameworks like Angular, React and Vue; is that Svelte is a compiler. Svelte runs at build time. Which means your Svelte code will be compiled at build time into highly efficient imperative code that runs on the browser to carry out DOM operations. Other famous frameworks usually use a technique called the virtual DOM to decide how to update the DOM. This technique runs in the browser during run time. And that adds more overhead to the DOM calculations.

In this course we are going to learn everything about Svelte from scratch. We will start with the basics by creating simple components. And then gradually progress and create more complex components.

And while Svelte is a great tool to build components for the web, it's not an easy task to build an entire application with just Svelte. That's why we have SvelteKit. SvelteKit is a framework for rapid development of robust, performant web applications. SvelteKit provides us out of the box with things like routing, server side rendering, pre-rendering and more. It provides us with a structure that we can follow to build high performance applications that are server side rendered and progressively enhanced.

In this course we are going to learn everything about SvelteKit. We are going to discuss pages and layouts, loading data, hooks, error handling, environment variables, pre-rendering, progressively enhanced form actions and more.

Finally we are going to bring everything together by building a Spotify clone with Svelte, SvelteKit and the Spotify API. Bringing together all the knowledge that we have learned during the course. You can check a demo of the app that we are going to build in the free videos.

So join now if you want to build high performance web applications with Svelte & SvelteKit!