Free Courses

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 inference and modeling: two of the most widely used statistical tools in data analysis.

Top chefs and Harvard researchers explore how everyday cooking and haute cuisine can illuminate basic principles in chemistry, physics, and engineering. Learn about food molecules and how chemical reactions can affect food texture and flavor.

Access to healthcare services is critical – but is it enough?

Examine how great modern writers capture the intricacies of our globalized world and how their works circulate within that world to find their own audiences.

Get the opportunity to see TinyML in practice. You will see examples of TinyML applications, and learn first-hand how to train these models for tiny applications such as keyword spotting, visual wake words, and gesture recognition.

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

Learn the significance of electrochemistry, understanding how electrical, chemical, and mechanical energy are linked.

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

Learn to deliver high-quality primary health care at scale through national community health worker programs.

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

The structure, annotation, normalization, and interpretation of genome scale assays.

Learn about the rich diversity of Hindu sacred texts – hymns, narratives, philosophical thought – and their interpretations.

Gain an understanding of history, museum studies, and curation by looking at, organizing, and interpreting art, artifacts, scientific curiosities, and the stuff of everyday life.

Learn probability theory — essential for a data scientist — using a case study on the financial crisis of 2007–2008.

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

Show what you’ve learned from the Professional Certificate Program in Data Science.

Learn about Claudio Monteverdi’s L’Orfeo, one of the first operas ever written.

An introduction to basic statistical concepts and R programming skills necessary for analyzing data in the life sciences.

Increase your quantitative reasoning skills through a deeper understanding of probability and statistics, with the engaging “Fat Chance” approach that’s made this course a favorite among learners worldwide.

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

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

Learn fundamental principles of architecture — as an academic subject or a professional career — by studying some of history’s most important buildings.

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

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

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

Happiness is within your control. Write your own ending.

Learn about Beethoven’s monumental 9th Symphony and forms of orchestral music.

Explore what makes cities energizing, amazing, challenging, and perhaps humanity’s greatest invention.

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