Harvard University's CS50 is one of the most popular beginner computer science courses in the world. We just released the entire 25-hour CS50 course on the freeCodeCamp.org YouTube channel. This is the most recent version updated for 2026, with an al...

freeCodeCamp is a nonprofit organization offering free online coding courses and programming tutorials, covering topics such as web development, data science, and machine learning. Learners can gain practical coding skills, build real-world projects, and earn certifications to advance their careers in tech.

freeCodeCamp

Harvard's CS50 2026 course is now available as a free 25-hour video series covering fundamental computer science concepts. The course teaches algorithmic thinking and problem-solving through multiple programming languages including C, Python, SQL, HTML, CSS, and JavaScript. Topics span algorithms, data structures, memory management, web programming, and a new section on artificial intelligence's impact on computer science. Taught by David J. Malan, the course is designed for beginners with no prior programming experience.

Harvard CS50 2026 – Free Computer Science University Course

I’ll check it out and see if it is updated. I watched this course online about 7 years ago and I thought it was fascinating to sit the “Harvard Class” at the time.

The best beginner CS course, now ready for 2026

“I finished Harvard”
“Woah man, that’s cool!”
“Online”

Im new to coding and this is helping so much!!!