Pick what you're learning

Choose your language below to see its courses — 21 courses, 323 lessons with free previews. Memberships and grants unlock full lessons.

C++

Objects, memory, and the STL

1 course

Mastering C++

Learn C++ fast with short, focused lessons! This course covers essential syntax, object-oriented programming, and real-world coding challenges. Perfect for beginners or anyone brushing up on C++!

22 lessons

C#

The .NET language, from the basics up

1 course

C

Pointers, memory, and the language everything else is built on

2 courses

The video series is built around this textbook we created, which dives even deeper into examples and explanations than the videos. Think of it as your essential companion to mastering C programming. I'm looking forward to seeing you inside!

12 lessons

Mastering Recursion With C

Unlock the power of recursion in C with this step-by-step guide. Master recursive techniques to solve complex problems efficiently and take your C programming skills to the next level!

11 lessons

Java

Classes, objects, and desktop apps with Swing

2 courses

Mastering Java Swing

Unlock the power of Java Swing in this dedicated online classroom! Dive into creating sleek, functional GUIs while mastering key concepts through hands-on projects. Get expert guidance, personalized support, and practical tips to enhance your skills. Whether you're starting out or leveling up, this community offers everything you need to succeed in Java Swing. Join today and elevate your coding journey!

28 lessons

Mastering Java - Full Guide

Everything you will ever need is inside of this reference guide.

15 lessons

Web Development

HTML, CSS, JavaScript and Node — build things people can open

4 courses

CSS

Learn how to write CSS like a pro and turn your projects in to masterpieces!

13 lessons

HTML

Learn the basics of HTML and how to get started in your Web Journey!

11 lessons

JavaScript For Web

Learn how to control a web page using JS!

11 lessons

NodeJs

Learn how to make your own NodeJs server to serve as the powerful backend for your applications.

9 lessons

SQL

Querying and designing databases

1 course

Master SQL

Master SQL step-by-step right inside this classroom. Launching Fall 2025!

1 lesson

Data Structures & Algorithms

The concepts every CS program tests you on

1 course

Data Structures & Algorithms

Unlock the secrets of data structures and algorithms in this all-in-one course, crafted to give you everything you need to succeed. Whether you’re new or looking to gain a complete understanding, our lessons go deep into key concepts like linked lists, stacks, queues, trees, and sorting algorithms - making them simple and engaging. We combine theory with hands-on examples, showing exactly how these structures work, so by the end, you’ll have truly mastered them.

43 lessons

College & university courses

Walkthroughs that follow a specific school course. Only useful if you're enrolled — otherwise start with a language above.

Pick what you're learning

C++

Mastering C++

C#

C-Sharp C#

C

Mastering C Textbook

Mastering Recursion With C

Java

Mastering Java Swing

Mastering Java - Full Guide

Web Development

CSS

HTML

JavaScript For Web

NodeJs

SQL

Master SQL

Data Structures & Algorithms

Data Structures & Algorithms

College & university courses

Thompson Rivers University

University of Lethbridge - CPSC

Carleton University - SYSC 2006

Seneca BTP 305

Seneca OOP244 C++ Workshop Walkthroughs

Carleton University - SYSC 2004

Conestoga College - PROG 71985

York U ITEC 1620

Toronto Metropolitan University