Harvard Free Online Courses – 84+ Subjects, 100% Tuition-Free

Browse 84+ Harvard University courses that are completely free to audit online. Topics span computer science, data science, humanities, health, business and more, with durations from 1 to 16 weeks. Enroll anytime and learn at your own pace.

Overview

Harvard University offers a growing catalog of free online courses through the HarvardX initiative on edX. Learners worldwide can audit complete college-level classes—ranging from TinyML and data-science visualization to Shakespeare, justice, global health and Chinese history—without paying tuition.

Each course provides Harvard faculty video lectures, auto-graded problem sets, discussion boards and downloadable resources. Optional certificates are available for a fee, but every core learning activity is free and available “now” with no enrollment deadline.

Courses last 1–16 weeks and require 3-6 hours per week. All you need is an edX account and an internet-connected device; no application or prerequisites for most classes.