Harvard Free Online Courses 2027 - Audit 129 Courses

The teaching is. Harvard's own catalogue lists 129 online courses under its free filter, every one of them carrying a price of $0, and you can work through the lectures and materials without paying anything. What Harvard prints is Free with an asterisk, and its own tooltip explains that asterisk as a pointer to each course's registration page for any additional fee details. On most of these courses that fee is the verified certificate at the end. Enrol on the audit track and nothing is charged.

The free filter on pll.harvard.edu returns 129 courses at the moment, all online. Humanities is the biggest group with 32, followed by Data Science with 17, Science with 15, Computer Science with 13, Health and Medicine with 12, Social Sciences with 11, Business with 9, Art and Design with 8, Programming with 5, Education and Teaching with 4 and Mathematics with 3. The number moves as courses are added and retired, so treat it as a snapshot rather than a fixed figure.

Usually only if you pay for one. Most of these courses run on edX, where the audit track is free and a verified certificate is a paid upgrade. Sampling the free catalogue in September 2026 gave $149 for Humanitarian Response to Conflict and Disaster, $209 for Calculus Applied!, $219 for CS50 and Managing Happiness, $249 for The Architectural Imagination and $299 for Introduction to Data Science with Python. Some courses offer no certificate at all. CS50 is the exception worth knowing about, because it issues a free certificate of its own.

CS50 runs its own site at cs50.harvard.edu and states the rule plainly: score at least 70% on each of the course's problem sets and labs and on the final project, and you are eligible for a free CS50 Certificate. You need a free edX account to submit work for feedback, and all eleven weeks of material are open through OpenCourseWare. That is separate from the verified edX certificate, which is paid and registered at cs50.edx.org, and separate again from transfer credit, which only comes through Harvard Extension School.

Not as a named award, and that is worth saying plainly. There is no application form, no closing date, no selection committee and no eligibility screen, because the courses are open by default and there is nothing to win. If a certificate fee is the barrier, edX runs a financial assistance process on its own platform, and the CS50 family gives you a free certificate route without any of that.

No. A course from this catalogue carries no Harvard academic credit, gives you no standing in Harvard admissions and does not lead to a degree. Harvard points anyone wanting credit for CS50 at Harvard Extension School instead, which is a separate registration with its own fees. What a certificate does give you is a verifiable record that you finished graduate-level material taught by Harvard faculty, which is a fair line on a CV as long as you describe it accurately.

It depends where you are going. For software, CS50: Introduction to Computer Science is the flagship at 10 to 20 hours a week, with lighter spin-offs in Python, SQL, cybersecurity, artificial intelligence and 2D game development. For data, the R-based Data Science series runs from R Basics through Probability and Linear Regression to the Capstone. For a shorter commitment, Managing Happiness asks 2 to 3 hours a week. Rhetoric: The Art of Persuasive Writing and Public Speaking and The Architectural Imagination are the strongest entries on the humanities side.

Yes. There is no citizenship, residency or visa condition anywhere in the process, because nothing is being awarded except teaching and an optional certificate. Learners in the US enrol on exactly the same terms as everyone else. All 129 free courses are delivered online in English, so the practical limit is language and time rather than geography.