15 Best Extensions Courses Online
We compared 15 Extensions courses currently listed on Udemy, International Open Academy and Coursera, priced from $19.99 to $199.99. 5 come from a named university or institution, including University of Pennsylvania, Johns Hopkins University and Birla Institute of Technology & Science, Pilani. They are ordered by our CourseAsk score, which is built from how thoroughly each course describes what it teaches, whether it comes from a named institution, and how it compares on price — not from star ratings, which our course data does not include.
- Courses compared
- 15
- Price range
- $19.99 – $199.99
- Providers
- Udemy, International Open Academy, Coursera
- Last updated
- 18 Sep 2026
How these 15 courses were chosen
Every course below is a real, currently listed course from Udemy, International Open Academy, Coursera, matched to "extensions" by our catalog and ordered by our CourseAsk score. Courses whose own title names the topic rank above those only tagged with it.
The grade on each entry scores how much the provider publishes about the course before you pay — the length and detail of the description, whether it lists learning outcomes and objectives — and whether a named university or institution stands behind it. A is fully documented and institution-backed; E is little more than a title and a price. Courses with almost nothing published are left ungraded rather than marked down, because an unknown course and a poor one are not the same thing.
There are no star ratings on this page — the course feeds we license do not include them, and we would rather leave a column out than fill it with a number we cannot stand behind. What we do have is price: these range from $19.99 to $199.99, as listed by the provider when we last updated the page.
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1
VSCode shortcuts & extensions for Web developer
This course unlocks the full potential of Visual Studio Code (VSCode) and supercharges your web development workflow. It is designed for web developers of all levels and will guide you through the most effective shortcut...
$19.99listed price -
2
Hair Styling & Extensions
Create styles that turn heads at any occasion. Learn super techniques from hair styling courses online, like our Extensions & Hair Styling course. Become an extensions and hair styling expert with an International Open A...
$24.99listed price -
3
Learning Microsoft Edge from Scratch
Welcome to the Learning Microsoft Edge from Scratch! This comprehensive course is designed to take you from a beginner to an advanced user of Microsoft Edge, one of the most powerful and versatile web browsers available...
$19.99listed price -
4
Joomla 3 - Crie Sites Dinâmicos e Responsivos do Zero
Aprenda na Prática a criar um site dinâmico completo utilizando o CMS Joomla!Neste curso você aprenderá a Instalar, configurar, Personalizar e criar seu site diretamente na plataforma do Joomla, além de conhecer as princ...
$34.99listed price -
5
Git with Visual Studio Code
Do you want to get stared quickly to use Git, right inside your favorite IDE, Visual Studio Code?Then you are at the right place!Welcome to my Git with Visual Studio Code course, where you will learn everything you need...
$19.99listed price -
6
Course 2: Introduction to Adobe Commerce
Offered by Adobe
This course introduces the powerful capabilities of Adobe Commerce. It explores how it supports businesses in today’s competitive e-commerce environment and what sets it apart from every other e-commerce tool on the mark...
$49.00listed price -
7
Up & Running with OpenCart to create online E-Commerce shops
OpenCart is one of the fasted growing E-Commerce software that is very fast, lightweight on server, easily customizable and open source. Its intuitive admin panel makes it easy to manage and administer all the...
$199.99listed price -
8
Inkscape Intermediate (Part-1)
The course moves past basic icon clicks to explore Inkscape’s deeper menu structures, covering layers, blend modes, the Objects panel, selection sets, live path effects, and extensions. It assumes you’ve finished the beg...
$19.99listed price -
9
Learn Visual Studio Code (2020)
The course walks through Visual Studio Code’s interface, showing how to install and manage extensions, configure settings, and use the built‑in terminal. It demonstrates common developer workflows such as debugging JavaS...
$89.99listed price -
10
Google Chrome Extensions: Guide to Development & Publishing
Get paid by businesses who require a Chrome Extension. Or build your own Chrome Extension and sell it on the Google Chrome Store. Learn to Build, Test and Publish Your Own Google Chrome Extension Learn the codeRecognise...
$19.99listed price -
11
Driving Operational Performance
Offered by University of Pennsylvania
Elevate your operational management skills with our Driving Operational Performance course, building upon the foundations laid in the Introduction to Operations Management. Led by the renowned Dr. Terwiesch, this course...
$99.00listed price -
12
Introduction to Reproducibility in Cancer Informatics
Offered by Johns Hopkins University
The course is intended for students in the biomedical sciences and researchers who use informatics tools in their research and have not had training in reproducibility tools and methods. This course is written for indivi...
$49.00listed price -
13
Java Database Engineering: Spring Boot MVC & SQL Mastery
Offered by Birla Institute of Technology & Science, Pilani
Master the full stack of database engineering with this comprehensive course that bridges theoretical SQL knowledge with practical Spring Boot MVC application development. Through hands-on projects building a library man...
$49.00listed price -
14
Generative AI for Software Developers
Offered by IBM
With generative AI, a new technology era has begun. Software developers can leverage this revolutionary technology to write high-quality code with fewer bugs, which will increase their overall effectiveness and efficienc...
$49.00listed price -
15
DevOps, DataOps, MLOps
Offered by Duke University
Learn how to apply Machine Learning Operations (MLOps) to solve real-world problems. The course covers end-to-end solutions with Artificial Intelligence (AI) pair programming using technologies like GitHub Copilot to bui...
$49.00listed price
Best Extensions Courses Online compared
Prices shown are the provider's listed price when we last updated this page. Confirm on their site before enrolling.
What the prices here tell you
The 15 priced courses on this page run from $19.99 to $199.99, with the middle of the range around $49.00 — a spread of $180.00. That is a wide gap for one subject. A higher price on this page usually reflects who is behind the course rather than how much material it contains, so it is worth opening two or three at different price points and comparing their syllabus before deciding.
Who is behind these courses
These courses come from Udemy, International Open Academy and Coursera. The platforms differ in how they sell: some charge once per course, others expect a subscription, and the listed price is not always what you pay at checkout after a promotion. 5 of these are produced by a named university or institution, including University of Pennsylvania, Johns Hopkins University and Birla Institute of Technology & Science, Pilani — which usually means a fixed syllabus and a recognised certificate, rather than an individual instructor’s own course.
Before you enrol
Open the provider’s own page and check three things this comparison cannot tell you: when the course was last updated, what the syllabus actually covers in its later sections, and what recent learners say. Prices shown here are the provider’s listed price when we last rebuilt this page on 18 September 2026 — they change often, and a promotion can move them substantially. We earn a commission if you enrol through our links, which costs you nothing and never affects the order courses appear in.