Start learning computer science with Harvard's CS50 courses on edX. Access free courses, earn certificates, and study at your own pace with expert-led instruction.

All the resources you need to give yourself a world class computer science education

Beginner computer science courses can help you learn programming basics, data structures, algorithms, and web development. Compare course options to find what fits your goals.

Learn how to code computer programs, how to design algorithms that make computers more efficient, and discover what a career in computing could look like.

Learn the basics of the world's fastest growing and most popular programming language used by software engineers, analysts, data scientists, and machine learning engineers alike.

How to Learn Computer Science from the Ground Up: A Beginner’s Roadmap. So you want to learn computer science but don’t know where to start? Whether you’re a career changer, a …

Oct 9, 2025 · Do you want to teach yourself computer science? Here’s everything you need to know to successfully learn computer science on your own.