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Svelte.js - The Complete Guide (incl. Sapper.js) (Udemy.com)

Build high-performance web applications with SvelteJS - a lightweight JavaScript compiler

Created by: Academind by Maximilian Schwarzmüller

Last updated November 2023

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What you will learn

  • SvelteJS from scratch, with zero knowledge assumed
  • All the theory and practical applications of Svelte
  • Core concepts and advanced techniques to build Svelte applications

How it compares

Against the other 239 rated Udemy courses in JavaScript on CourseDuck:

  • Rating4.8 out of 5higher than 93% of them
  • Reviews3,661#40 of 240 by number of reviews
  • Length12.7 hourslonger than 78% of them
  • Last updatedNovember 2023more recently than 51% of them

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Course Description

Svelte.js is a modern JavaScript compiler that allows you to write easy-to-understand JavaScript code which is then compiled to highly efficient code that runs in the browser.

You'll write your frontend application using normal JavaScript, following specific rules laid out by Svelte (which are of course taught in this course). As a result, the Svelte compiler will produce a small and highly optimized JavaScript bundle which can be deployed.

In this course, you learn all about Svelte, how it works, its core features and how to run your final app on a real server!

Svelte.js is a tool for building highly reactive, modern user interfaces for the web - and it's a great alternative to JavaScript frameworks and libraries like React.js, Angular or Vue.

What will you learn?

  • What is Svelte and why would you use it?

  • All the core features and base syntax

  • How to render conditional and list content

  • How to write reactive and fast web applications

  • All about components, how to pass data around and how to create re-usable building blocks

  • How to efficiently manage data in your application via Svelte stores

  • How to reach out to a backend server and send + fetch data

  • How to pre-render your app on a server and improve SEO

Is this course for you?

Svelte is a popular alternative to React.js, Angular and Vue and learning it will benefit any frontend web developer.

You don't need to know these frameworks to learn Svelte though - but if you do know them, you'll learn about an interesting alternative which might allow you to build your web projects with less code (and get an even faster app along the way!).

You need NO advanced JavaScript knowledge, basic knowledge will do.

If you're interested in building modern, reactive user interfaces that load quickly and run fast, SvelteJS is a tool you shouldn't overlook!

What's in the course?

  • Learn Svelte from scratch - zero knowledge assumed!

  • Theory and practice modules

  • A complete course project (the "meetup planner")

  • Assignments and tasks

  • All source code is attached to lectures and modules

  • 30 day trial phase - get your money back with no questions asked if you're not happy!

Who's teaching you?

My name is Maximilian Schwarzmüller and I'm teaching a broad variety of web & mobile development topics here on Udemy. I immediately loved Svelte when I learned about it since it fills an important gap between vanilla JavaScript and frameworks like Angular, React or Vue.

It can be used to replace these frameworks or to enhance apps built with them - and I simply love lightweight apps and clean syntax rules.

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Instructor Details

Academind by Maximilian Schwarzmüller

Bundling the courses and know how of successful instructors, Academind strives to deliver high quality online education. 

Online Education, Real-Life Success - that's what Academind stands for. Learn topics like web development, data analyses and more in a fun and engaging way.

We've taught more than 3,000,000 students on a broad variety of topics. We'd love to teach you as well! :)

Keep learning!

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Reviews

4.8

3,661 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Peter Nagy on 9/14/2026

I did this course in august-september of 2026, where svelte has gone through a major overhaul with version 5 and Sapper has also been deprecated in favour of Sveltelkit. That said all concepts discussed still applied and it was actually a nice challenge to translate the course material to the new syntaxes. I had a great time and got to love svelte as a development tool

By Luca Venir on 1/14/2022

This course is exactly what I've expected. I had no prior web frameworks experience and honestly little to none HTML/CSS/JS knowledge (just some basics): this course properly introduces Svelte and its mindset. Even if the course is ""old"" (2019 I guess) and therefore it doesn't include SvelteKit (it has replaced Sapper), it is still a blast. Exploring Sapper, in the end, is very useful because, to me, it helped understand why Rich Harris (the creator of Svelte / Rollup / Sapper) introduced SvelteKit.

By Rahmat Effendi on 12/20/2020

this courses is good for beginner

By Ana Cristina Sequeira on 12/13/2020

Max did a great job explaining svelte not only in an isolate way but also comparing it to the other existing alternatives!

By Charlie Gaines on 11/22/2020

Kind of slow for my taste and framework name is mispronounced. But I like the timbre

By Janina Bremer on 11/21/2020

Er vermittelt mir ein gutes Verstndnis dafr, warum man Svelte verwendet und was die Unterschiede zu React oder Angular sind.

By Craig Holloway on 11/14/2020

Enthusiastic, knowledgeable tutor that does not miss out the important config details to get you up and running.

By Anonymous on 11/11/2020

super!

By Stephen Swann on 11/10/2020

Dude, Svelte looks great. Stoked to finish this course and make stuff with it.

By Miguel Rivas Perez on 10/27/2020

The course started off really great, but then felt more progressively rushed as Max went along. I'm a big fan of his courses, so this one was genuinely disappointing.

By Cornel Cristian Filip on 10/27/2020

Amazing course! I recommend it to everyone!
Svelte is an awesome technology and a must-have in a developer's tool belt!
Thank you, Maximilian!

By Sean Wilkin on 10/23/2020

Great course, really learned a lot, only wish there were a bit more Sapper specific content but overall really great.

Showing 12 of 298 reviews

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Overall Score : 96 / 100