15 Best Online JavaScript Course Reviews in 2021 | Online Lessons for All Levels of Knowledge

Nowadays, JavaScript must be one programming language of any web developer's repertoire. All excellent web developers aspire to have advanced JavaScript knowledge, which can be achieved by establishing JavaScript basics.

Since programming languages like Java are purely online and web-based, learning JavaScript concepts and using its tools and frameworks should be done on an equally online-based medium, like online courses such as online web design certificate programs, for example.

By choosing the best online JavaScript course for you, you'll learn to build your web page, use regular expressions and brush on topics like prototypal inheritance and scope closures. To know more about these courses, read on.

3 Top Online JavaScript Courses

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[Best Overall] 

1. Udemy - The Complete JavaScript Course 2021: From Zero to Expert!

You'll get an introduction to JavaScript fundamental concepts; then, you'll delve deeper into more specialized topics on programming, like object-oriented programming and an optional HTML and CSS crash course.

4.9/5 

  • Very clear instructions
  • Downloadable lectures, code and design assets
  • Friendly and fast support
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[Best for the Money] 

2. Pluralsight - Javascript: Getting Started

You'll be learning a lot about applications that can be built using JavaScript, understand the fundamental concepts of JavaScript, and the know-how of how to alter a modern responsive website.

4.8/5 

  • Training sessions progress is stored online
  • Creativity and enthusiasm of the instructors
  • Low cost of entry
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[Best For Developing Front-end Web Skills]

3. Coursera - Modern JavaScript: ES6 Basics

Knowing the basics of JavaScript is one thing, but developing front-end web skills is entirely something else. This course on JavaScript offered by Coursera is one of the best courses to help you learn to attain these skills.

4.7/5 

  • Live online courses, interactive classes with individual attention
  • Industry-recognized certification
  • Exclusive Learning manager

What Is the Best JavaScript Online Course?

There's no definitive answer to this question. Simply, JavaScript courses, both free and paid, will help you learn more about web applications, HTML, CSS, creating web pages, the JavaScript code, various frameworks or libraries, and other advanced concepts if you've already chartered the waters of online courses.

However, to make things easier for you, we've compiled a list of the best courses to help you build your programming knowledge. Also, these best web development courses and top full stack development courses are worth checking, too. Here are our main recommendations:

Best Online JavaScript Courses

This is most likely one of the best courses for any developer specializing in JS. First off, you'll get an introduction to JavaScript fundamental concepts; then, you'll delve deeper into more specialized topics on programming, like object-oriented programming and an optional HTML and CSS crash course.

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This is one of the top-notch courses to help you learn JavaScript, as you'll get lifetime access to the content so you can learn the basics of using JavaScript anytime you need and use it for future reference if you're planning on establishing a web developer career.

Additionally, since this is a relatively new course, you'll learn more modern JavaScript in several languages (English, French, German, Spanish, etc.)

If you want an entry-level course for topics like async/await, structures, and strings, you'll want to learn more about this course.

Although this 68-hour of course on JavaScript online might seem intimidating at first, you'll find it immensely helpful in advancing your JavaScript knowledge and your knowledge when it comes to any programming language in general.

Pros

  • Very clear instructions
  • Downloadable lectures, code and design assets
  • Friendly and fast support

Cons

  • I have not found anything that needs to be improved

4.8/5 

Pluralsight offers one of the most comprehensive modern and online JavaScript courses with various web applications and JavaScript coding topics. Just in one course, you'll be learning a lot about applications that can be built using JavaScript, understand the fundamental concepts of JavaScript, and the know-how of how to alter a modern responsive website.

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You'll also be learning more about developing web installation, arrays, Document Object Model (DOM), and error handling. All in all, this is a great course for any Java enthusiast, and it offers one of the best learning experiences it is online.

This course only comes in one language: English, but it's suitable for beginner or entry-level web developers. It takes about 3 hours and 56 minutes to finish, but you can access the lessons included in this course anytime. Plus, if this is your first time using Pluralsight, you'll get a 10-day free trial.

Unfortunately, this course doesn't offer certification, but it's an optimal method for you to master JavaScript works.

Pros

  • An excellent interface and user experience
  • They are very “up to date” in topics of interest
  • Lots of high quality classes

Cons

  • It doesn't offer certification

[Best For Developing Front-end Web Skills]

3. Coursera - Modern JavaScript: ES6 Basics

4.8/5 

Knowing the basics of JavaScript is one thing, but developing front-end web skills is entirely something else. This course on JavaScript offered by Coursera is one of the best courses to help you learn to attain these skills.

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This is a highly interactive course in which the instructor will guide you as best as possible so you can get started with variables, scope closures, extracting data, and destructing data.

With a split-screen, you'll get a full view of both your workspace and the instructor, meaning that you'll get a step-by-step guide to writing modern JavaScript.

This course also focuses on ES6 and its features, so it could be useful if that's what you're looking for. Getting started with this course is fairly easy, and it'll take only 2 hours for completion, but it requires an intermediate level of knowledge of programming.

This course doesn't offer certification; nevertheless, it's a great learning experience when it comes to Java and web development in general. Be sure to check it out if you want a more hands-on experience.

Pros

  • Coursera is very well organized.
  • They are very “up to date” in topics of interest
  • Lots of high quality classes

Cons

  • I have not found anything that needs to be improved

Great online courses on JavaScript can be pretty rare. Because web development is so on demand nowadays, finding the best JavaScript courses should be a top priority for novice web developers. 

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If you're looking for an online course that fits these characteristics, Educative's course on JavaScript is a great place to start.

Taking about 6 hours for full completion, this course is designed for beginner web developers, showing you the ropes of how JavaScript works. You'll also learn to build web pages and web apps as soon as you finish it.

The course doesn't require fees, and to top it all, you'll get a certificate upon completion.

Moreover, you'll have lifetime access to the content so you can get back to it whenever you need it. You'll also be able to view your progress as you go through the various lessons In this course.

Also, if you prefer a text-based online course to a video-based one, learning JavaScript through this course will prove to be truly useful.

Pros

  • Designed for beginner web developers
  • Lifetime access to the content
  • Progress tracking available

Cons

  • Not any

If you're looking for a free JavaScript course covering complex topics related to Java, this course should be for you. Programming for the Web with JavaScript is an intermediate-level course offered entirely for free, except for the certification, which you can choose whether or not to pay for it.

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This might be considered more of an advanced JavaScript course, as it covers topics like developing dynamic, interactive web pages, use DOM, JavaScript syntax, and several advanced JavaScript features, like asynchronous programming, callbacks, and events.

Free JavaScript courses, and asynchronous JavaScript for that matter, are hard to come by, but this course will go beyond your expectations, as it also introduces you to server-side Javascript, which is becoming increasingly more prevalent in the industry.

In short, you'll learn server-side and client-side JavaScript, learn to create browser internal, jQuery, and DOM. You'll also learn how to use new tools and frameworks for libraries like React.js so you can develop various web page components.

This course takes about 24 to 32 hours to complete, which is understandable considering the wealth of information it offers. It's also online, self-based, and completely for free, so it's definitely a great course for anyone who wants to master web development and programming in general.

Pros

  • Entirely for free, except for the certification (optional)
  • A variety of web development topics of interest
  • Also introduces you to server-side Javascript

Cons

  • I have not found anything that needs improvements

Online courses offered by platforms like LinkedIn can be truly useful for your career. Although this is a no beginner-level course, it's great for introducing concepts like debuggers in web browsers, AJAX debugging, and how to use AJAX fetch in general, which will further hone your web development skills.

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Since debugging constitutes a large portion of web development, learning what this best javascript course offers, which mainly focuses on debugging, will be a great asset in the future.

If you're not familiar with iOS debugging using a simulator or how you can debug a react application through Chrome, you might want to take a look at this course.

The course content is in English and takes about 2 hours and 49 minutes to finish all the lessons, so it won't really eat up much of your time, and you'll even get a certificate of completion at the end of the course in PDF form and printable.

The good thing about this course is that it can be accessed via your phone, tablet, or laptop, so you can basically learn the basics of debugging without having to start your computer. Be mindful that there's a JavaScript project that you'll have to work on throughout the course, too.

Pros

  • Mainly focuses on debugging and will be a great asset in the future
  • It won't really eat up much of your time
  • You get a certificate of completion

Cons

  • This is a no beginner-level course

4.6/5 

Are you seeking fast-paced online courses on web development and JavaScript in general, you should definitely check out Skillshare's array of courses! You can learn JavaScript at and at your own pace with Skillshare, offering over a hundred courses.

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As expected, Skillshare courses vary in level, time, and difficulty, but that just makes your options more varied!

From JavaScript tutorials to complex topics like pure JavaScript and JavaScript without, Skillshare will surely have everything you need to learn in this programming language.

The downside is you won't have a certificate after finishing any of these courses; however, you'll definitely learn a lot, which is considered a more than a fair deal considering that the subscription fees on Skillshare are quite reasonable.

Whether you're looking to learn JavaScript out of curiosity or are pursuing a web development-related job, Skillshare courses on JavaScript should help you achieve your objective.

Pros

  • From JavaScript tutorials to complex topics like pure JavaScript
  • The subscription fees on Skillshare are quite reasonable
  • Various course lengths

Cons

  • The downside is you won't get a certificate

If you're one of those people who made it to the advanced level of your JavaScript journey, congratulations! You might not find many sources that offer new information, but this course will make you change your mind in no time!

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This course is designed specifically for those at an intermediate and advanced level of their JavaScript education. Plus, it offers a certificate of completion-a great bonus to your career!

In this course, you'll get a roundup of different complex JavaScript concepts using life examples and illustrations.

You can find this course on Udemy in 7 different languages, including Spanish and Indonesian, and it provides lifetime access after you've completed it.

Pros

  • In 7 different languages, including Spanish and Indonesian
  • Lifetime access after you've completed it
  • The certificate of completion is a great bonus to your career

Cons

  • Not for beginners

If you're an intermediate or advanced level in programming, you might want to learn how to troubleshoot a website HTML, JavaScript, or CSS through the Chrome developer toolbar.

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There aren't that many online courses dedicated explicitly to Chrome DevTools, but this course will help you a great deal in learning everything about Chrome DevTools. 

At the end of this course, you should be able to use the 8 Chrome DevTool panels and modify the default scripts for these panels.

All in all, this course will be helpful if you're looking for a niche course to help you learn JavaScript and further your programming knowledge in general.

Pros

  • Dedicated explicitly to Chrome DevTools
  • Will help you learn JavaScript and further your programming knowledge

Cons

  • Not for complete beginners

This is yet another advanced course for JavaScript gurus. With almost 24 hours for full completion and 24 articles, you'll learn JavaScript online on a whole new level.

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Learn novel JavaScript practices that'll help you make leaps and bounds in your career, and brush on topics like Babel and TypeScript, memory leaks and garbage collection, function scope vs. black scope, and more.

This course is also offered by Udemy, has mobile and TV access, and offers a certificate of completion. Therefore, it's definitely worth checking out if you're an advanced JavaScript developer.

Pros

  • Learn novel JavaScript practices that'll help you make leaps and bounds in your career
  • Brush on topics like Babel and TypeScript, memory leaks and more
  • Offers a certificate of completion

Cons

  • Only suitable for advanced developers

If you know little to nothing about JavaScript programming in the first place, Modern JavaScript from the Beginning is a great place to start. It covers almost all the topics you might need to know about JavaScript online, like AJAX & fetch API, asynchronous JS, error handling, regular expressions, JavaScript patterns, and much more.

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This could be considered one of the leading courses on for JavaScript for beginners with a completion certificate and 111 downloadable content to boot.

This course is available in several languages, like Spanish, Portuguese, and Italian. In case you're looking for a solid starting point on JavaScript online, this course should be your way to go.

Pros

  • It covers almost all the topics you might need to know about JavaScript online, like AJAX & fetch API, asynchronous JS, error handling and more
  • Available in several languages, like Spanish, Portuguese, and Italian

Cons

  • I have not found anything that needs to be improved

Want a short course to give you the bottom line on JavaScript, and you're a beginner? This is the one. It takes about 28 hours for full completion, translating into 3-7 hours per week if you finish it in 3 weeks.

In this course, you'll learn the basics of HTML, CSS, and, most importantly, JS and how all of that translates on your website.

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This will enable you to increase your audience's interactivity, thus, increasing your traffic.

Eventually, there will be a project on coding a website, applying filters to it, and more, which will be noteworthy for the shareable certificate you’ll get at the end.

Pros

  • Great for JavaScript beginners
  • You'll also learn the basics of HTML, CSS, and, most importantly, JS
  • Certification offered

Cons

  • None so far

If you're on the fence about whether to get a fun, easy-to-absorb course about JavaScript and a course with a wealth of programming information, this course will give you the best of both worlds!

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With this one, you'll learn the basics of all popular languages like CSS and HTML5, and you’ll be able to use your knowledge to create HTML5-based games and apps.

By the end of it, you’ll create fun animations and web graphics to your heart’s content!

While it isn't exactly cheap to pay for this course's full components, learning JavaScript through it is certainly a unique and enjoyable experience.

Pros

  • You'll learn the basics of all popular languages like CSS and HTML5
  • You'll learn to create HTML5-based games and apps

Cons

  • Not that affordable

This course serves as an introduction to programming languages, in general, more than it does to JavaScript alone. The Harvard instructors who provide this course teach their students topics that range from algorithms, data structures, software engineering, resource management, and more.

You don’t need any prior experience with programming at all to get the gist of this course.

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In fact, this course is also for free, except for the certificate, and it takes about 12 weeks for full completion, which is quite average compared to other courses on this list.

If your primary goal is to get a quality certificate, you should definitely obtain this instructor-signed certificate with the Harvard logo. It'll certainly increase your job prospects in spades!

Pros

  • The Harvard instructors provide this course
  • This course is also for free, except for the certificate
  • Offers an instructor-signed certificate with the Harvard logo

Cons

  • No cons so far

The last course we have on this list is the Complete JavaScript Course: Build a Real-World App from Scratch. As usual with entry-level courses, the first few lessons take you through JavaScript, DOM, HTML, and CSS' basics. It's fairly easy to get lost in this course, so be sure to track your progress as you go thoroughly.

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You can easily do this through the assessments applied every time you make substantial progress. 

You’ll also get a chance to try coding yourself through hands-on environments on your browser. You also won’t have to do any set-up steps on your own, as all course materials are cloud-based.

You’ll get a certificate by the end of the course, which can be obtained once you finish the 20 hours requirement!

Pros

  • A complete JavaScript course to build a real-world app from scratch
  • You’ll also get a chance to try coding yourself through hands-on environments
  • You’ll get a certificate by the end of the course

Cons

  • Not any

FAQs

How Do I Get JavaScript Certified?

Essentially, you can get certified by taking on any of the JavaScript courses that offer a certification of completion. However, be sure to seek the best JavaScript certifications, such as the ones offered by LinkedIn, Udemy, and Microsoft.

How Long Does It Take to Learn JavaScript?

JavaScript is considered of the most difficult languages for a good reason. It takes about 2 weeks to learn languages like CSS and HTML, but for JavaScript, it might take 6-9 months at least to learn all the basics of JavaScript. It could take even more to master it.

Which Is Easier, Python or JavaScript?

As mentioned earlier, JavaScript is one of the most difficult languages; thus, Python, CSS, and HTML are all easier to learn than JavaScript. However, once you master JS, you'll pave the road for a great career when it comes to web apps and web development.

How Popular Is JavaScript?

By far, JavaScript, including Microsoft's TypeScript and CoffeeScript, is the most popular language yet, with over 12.4 million programmers around the world using it.

Why Do We Use JavaScript?

There's an array of reasons why programmers are learning JavaScript and why the demand for expert JavaScript programmers is high. The short answer is JavaScript creates an interactive and dynamic experience for users or internet surfers. In fact, most functions and applications nowadays are coded using JavaScript.

Final Thoughts

Now that you know some of the best sources to learn JavaScript development, all you've got left is to evaluate your knowledge and choose the right sources for your level!

Whether you're looking for free or paid material, JavaScript courses, books, and guides are quite numerous, so make sure to choose wisely!