Free Courses

Learn how global warming impacts human health, and the ways we can diminish those impacts.

Discover Handel’s Messiah in this installment of First Nights, which will explore five masterpieces of western music.

This course picks up where CS50 leaves off, diving more deeply into the design and implementation of web apps with Python, JavaScript, and SQL using frameworks like Django, React, and Bootstrap.

Learn skills and tools that support data science and reproducible research, to ensure you can trust your own research results, reproduce them yourself, and communicate them to others.

Use the case study method to study China from the rise of Deng Xiaoping to the present.

Traces Albert Einstein’s engagement with relativity, quantum mechanics, Nazism, nuclear weapons, philosophy, the arts, and technology.

Learn about the forces in American politics that seek to influence the electorate and shift the political landscape.

Learn the anatomy basic to understanding five musculoskeletal injuries commonly seen in primary care medicine and orthopedic clinical specialty practice. Follow hypothetical patients from injury to operating room.

Learn about China’s origins, its integral early thinkers, and competing states and schools of thought.

An introduction to the intellectual enterprises of computer science and the art of programming.

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

Take your introductory knowledge of Python programming to the next level and learn how to use Python 3 for your research.

Explore how entrepreneurship and innovation tackle complex social problems in emerging economies.

Learn about the Qin and Han dynasties, and how Buddhism and ideas of self-realization influenced the medieval period.

Find innovation opportunities in health care technology, management, consulting, or investing by examining health care cost, quality, and access.

Expand your learning of chemistry and thermodynamics by exploring entropy, free energy, and equilibrium.

Learn how to protect your own data, devices, and systems from today's threats.

Explore the underlying structures of everyday arguments and develop the tools to communicate effectively.

An in-depth look at the 1854 London cholera epidemic in Soho and its importance for the field of epidemiology.

Join Harvard University instructor Pavlos Protopapas in this online course to learn how to use Python to harness and analyze data.

Apply tools of single-variable calculus to create and analyze mathematical models used by real practitioners in social, life, and physical sciences.

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

Build a foundation in R and learn how to wrangle, analyze, and visualize data.

Learn about the development of 2D and 3D interactive games in this hands-on course, as you explore the design of games such as Super Mario Bros., Pokémon, Angry Birds, and more.

Learn how American women created, confronted, and embraced change in the 20th century while exploring ten objects from Radcliffe’s Schlesinger Library.

Understand how the FDA regulates pharmaceuticals and explore debates on prescription drug costs, marketing, and testing.

Learn how early American politics informed the U.S. Constitution and why its promise of liberty and equality has yet to be fully realized.

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

Join Harvard University instructor Pavlos Protopapas in this online course to learn how to use Python to harness and analyze data.

Learn the fascinating history of Igor Stravinsky’s The Rite of Spring, one of the most challenging and rewarding ballets ever written.