Free Courses

This is CS50’s introduction to technology for students who don’t (yet!) consider themselves computer persons.

This is CS50’s introduction to computer science for business professionals.

An introduction to programming using Python, a popular language for general-purpose programming, data science, web programming, and more.

A human-centered approach to the fundamentals of cell biology with a focus on the power plants of the cell - mitochondria.

Learn the skills and tools of improvement science to make positive changes in health, healthcare, and your daily life.

Study Baroque and Classical opera through Handel’s Giulio Cesare and Mozart’s Don Giovanni

Learn the music and cultural impact of three canonical operas from the 1800s: Les Huguenots, Das Rheingold, and Otello.

Explore the world’s top executive programs and make a difference in your career today.

Learn the principles guiding humanitarian response to modern emergencies, and the challenges faced in the field today.

An introduction to the study of bioethics and the application of legal and ethical reasoning.

Discover how neurons work together to create complex networks inside the brain.

Learn the essentials of U.S. health care policy from some of the nation's top experts.

Learn how electricity makes the neurons in your brain tick.

Discover what makes your brain tick in this third course in our introductory series in neuroscience.

Mobilize people to tackle tough problems and build the capacity to thrive through the dangers of change