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Machine Learning with Javascript (Udemy.com)

Master Machine Learning from scratch using Javascript and TensorflowJS with hands-on projects.

Created by: Stephen Grider

Last updated February 2026

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What you will learn

  • Assemble machine learning algorithms from scratch!
  • Build interesting applications using Javascript and ML techniques
  • Understand how ML works without relying on mysterious libraries
  • Optimize your algorithms with advanced performance and memory usage profiling
  • Use the low-level features of Tensorflow JS to supercharge your algorithms
  • Grow a strong intuition of ML best practices

How it compares

Against the other 155 rated Udemy courses in Machine Learning on CourseDuck:

  • Rating4.6 out of 5higher than 81% of them
  • Reviews3,519#28 of 156 by number of reviews
  • Length17.7 hourslonger than 78% of them
  • Last updatedFebruary 2026more recently than 78% of them

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Quality Score

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Overall Score : 92 / 100

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Course Description

If you're here, you already know the truth: Machine Learning is the future of everything.

In the coming years, there won't be a single industry in the world untouched by Machine Learning.  A transformative force, you can either choose to understand it now, or lose out on a wave of incredible change.  You probably already use apps many times each day that rely upon Machine Learning techniques.  So why stay in the dark any longer?

There are many courses on Machine Learning already available.  I built this course to be the best introduction to the topic.  No subject is left untouched, and we never leave any area in the dark.  If you take this course, you will be prepared to enter and understand any sub-discipline in the world of Machine Learning.


A common question - Why Javascript?  I thought ML was all about Python and R?

The answer is simple - ML with Javascript is just plain easier to learn than with Python.  Although it is immensely popular, Python is an 'expressive' language, which is a code-word that means 'a confusing language'.  A single line of Python can contain a tremendous amount of functionality; this is great when you understand the language and the subject matter, but not so much when you're trying to learn a brand new topic.

Besides Javascript making ML easier to understand, it also opens new horizons for apps that you can build.  Rather than being limited to deploying Python code on the server for running your ML code, you can build single-page apps, or even browser extensions that run interesting algorithms, which can give you the possibility of developing a completely novel use case!


Does this course focus on algorithms, or math, or Tensorflow, or what?!?!

Let's be honest - the vast majority of ML courses available online dance around the confusing topics.  They encourage you to use pre-build algorithms and functions that do all the heavy lifting for you.  Although this can lead you to quick successes, in the end it will hamper your ability to understand ML.  You can only understand how to apply ML techniques if you understand the underlying algorithms.

That's the goal of this course - I want you to understand the exact math and programming techniques that are used in the most common ML algorithms.  Once you have this knowledge, you can easily pick up new algorithms on the fly, and build far more interesting projects and applications than other engineers who only understand how to hand data to a magic library.

Don't have a background in math?  That's OK! I take special care to make sure that no lecture gets too far into 'mathy' topics without giving a proper introduction to what is going on.


A short list of what you will learn:

  • Advanced memory profiling to enhance the performance of your algorithms

  • Build apps powered by the powerful Tensorflow JS library

  • Develop programs that work either in the browser or with Node JS

  • Write clean, easy to understand ML code, no one-name variables or confusing functions

  • Pick up the basics of Linear Algebra so you can dramatically speed up your code with matrix-based operations. (Don't worry, I'll make the math easy!)

  • Comprehend how to twist common algorithms to fit your unique use cases

  • Plot the results of your analysis using a custom-build graphing library

  • Learn performance-enhancing strategies that can be applied to any type of Javascript code

  • Data loading techniques, both in the browser and Node JS environments

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Instructor Details

Stephen Grider

Stephen Grider has been building complex Javascript front ends for top corporations in the San Francisco Bay Area.  With an innate ability to simplify complex topics, Stephen has been mentoring engineers beginning their careers in software development for years, and has now expanded that experience onto Udemy, authoring the highest rated React course. He teaches on Udemy to share the knowledge he has gained with other software engineers.  Invest in yourself by learning from Stephen's published courses.

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Reviews

4.6

3,519 ratings on Udemy

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

By Shabuktagin Photon Khan on 10/1/2022

Helpful machine learning course !! If you have the background with medium to good understanding of calculus, linear algebra and statistics, you will enjoy this course even more. I loved how the instructor goes through the details of math to relate the concepts. If your background includes experience in javascript thats even better. I would say it gets little bit difficult approximately around 50% of the course, since you need to keep track of lots of changes in the formula. I would definitely go back, study and practice matrix calculations again. Overall, I understood how to train the data and use it with different algorithm. Most importantly, I understood why tensor flow is used.

By Paul Newland on 1/23/2022

Fantastic course for wrapping your head around the fundamentals of machine learning. Ideal when paired with some linear algebra, calculus (derivatives), and probability review - but not 100% necessary since the math and algorithms used in this course are explained thoroughly. In general, this is a great jumping off point for future learning in the subject but also provides pragmatic lessons that can be immediately translated to working with ML now in your own projects.

By Karthik Sankar on 11/21/2020

Yes. Looks like the problem I am going to solve is classification.

By Viktor Serdjukov on 11/14/2020

It doesn't matter if it's Machine Learning, JavaScript, TypeScript, React or other topics - there is no other Instructor who gives me these 'aha' moments when learning new subjects. Because he doesn't only show you how it's done, but why it's done a specific way. He always shows you the pitfalls, and what to look out for.
All courses are well structured, prioritized.

By Wojtek Kosinski on 11/14/2020

Super clear explanations and good examples.
Also you can see the author is a true JavaScript expert.

By Zakaria Ben Salem on 11/7/2020

great introduction

By Alan Martin on 11/7/2020

Great! Love the way you are breaking this all down step by step. I am not trained in ML but listening to your example I can find the relations between JavaScript I already know.

By Vladlen Tereshchenko on 11/7/2020

Amazing course! Great breakdown on hard topics and elaborate project structure makes it easy to understand and follow the course.

By AtharvaBirtharia on 11/1/2020

nice

By Biprajit Majumder on 10/25/2020

It is teaching me the basics of Machine Learning, I think it is a good starting point for people who are getting into ML

By Herminio Garcia on 10/25/2020

Very detailed deep dive into ML concepts. Once he got into tensorflow specific topics, it was easy to understand how they were applied. I dont think I've ever understood linear algebra as much as I do by going through this course.

By Mario Vinti on 10/23/2020

I've never been disappointed with a Stephen Grider course. 5 stars!

Showing 12 of 410 reviews