Svelte & SvelteKit: The Complete Guide [2025 Update]

Build & Deploy Full Stack, High Performance, Server Side Rendered Web Apps that Work Even with JavaScript Disabled.

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 are going to start with the basics of signal based reactivity and we then we will create simple components. And then gradually progress and create more complex components and discuss more in depth features.

And while Svelte is a great tool to build components for the web, it's not an easy task to build an entire full stack 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.

We are also going to use tools like PostgreSQL & Drizzle ORM for database management and BetterAuth and CASL for authentication and authorization.

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