Are Harvard online certificate courses free? What counts and what does not
Harvard's course pages describe several kinds of document, and only one of them is free. The 9 courses in the table above are the CS50 family, published as OpenCourseWare on cs50.harvard.edu, where Harvard's own wording is that for each course it offers verified certificates for a fee and a free certificate. The HarvardX courses on edX are free to audit, but their verified certificate is a paid upgrade; the ones on this site are priced from $69 to $299 on Harvard's course pages, so they belong on the Harvard provider page, not here. Harvard online certificate programs that carry credit are separate paid programmes and are not free courses at all. A search for a Harvard certificate free of charge therefore ends at CS50.
How to get the CS50 certificate for free
The rule is the same across the family and is printed on each course's certificate page, linked from its front page: submit the graded work and receive a score of at least 70 percent on every piece of it, and you are eligible for a free CS50 Certificate. Watching the lectures is not enough, and the pages mention no exam; the graded work is the assessment. You need a free edX account to submit work for feedback, but the edX verified track is a separate, paid enrolment.
What counts as graded work varies. CS50x requires 70 percent on each problem set and lab as well as the final project; CS50P, SQL, R and Cybersecurity require it on each problem and the final project; the AI course is assessed entirely through its projects; Scratch spells out that 70 percent means a full mark on each of its nine projects; CS50 for Lawyers grades assignments. Web Programming follows the project-per-week pattern with a final project at the end.
How long a free Harvard certificate takes to earn
The courses are self-paced, and the course sites give the size of each as weeks of material. CS50x is the largest at eleven weeks, and Harvard's listing puts the effort at 10 to 20 hours a week. CS50P is ten weeks at 3 to 9 hours a week; Cybersecurity is the shortest at five weeks and 2 to 6 hours a week. The AI course is seven weeks of material but Harvard lists 10 to 30 hours a week, the heaviest weekly load among the listed courses. Web Programming is nine weeks at 6 to 9 hours a week, SQL seven weeks at 6 to 12 hours a week, and the lawyers' course ten weeks at 3 to 6 hours a week.
Free certificate versus the edX CS50 certificate
Both are available for the same course, and both confirm completion of the same work. The free certificate is issued at a unique URL by the course on Harvard's site. The verified certificate comes from edX for a fee: Harvard's listings show $219 for CS50x, $199 for Web Programming and $299 for the AI course. Harvard's own description of the difference is that verified certificates involve a verification process through edX and may therefore be regarded by others as more authentic. The verified route has a second cost that the free one does not: edX limits audit access to the course's listed length, after which you upgrade or re-enrol, whereas the OpenCourseWare material stays open. If nobody has asked you for an identity-verified document, the free certificate is the one to earn.
How to verify a Harvard CS50 certificate
Every free certificate is issued using a unique URL, and that link is the verification: anyone who opens it sees the certificate as Harvard issued it. Give the URL on a CV or profile rather than a screenshot or PDF, and name the course in full, since a certificate for CS50's Introduction to Programming with Scratch and one for CS50x say different things about you. None of the CS50 pages states an expiry, so none is claimed here.
Is the CS50 certificate worth it?
It is worth what the work behind it is worth. The certificate is only issued for scoring 70 percent or more on every problem set, project or assignment, so it shows graded, submitted work: C, Python, SQL and web code for CS50x, or the language of the follow-on course. What it is not is academic credit: taken free, none of these courses carries Harvard credit or admission (the course pages point to separate, paid Harvard Extension School and Summer School registrations for transfer credit), and a free Harvard certificate is evidence of self-study, not a qualification. The course level matters too. CS50x, CS50P, SQL, Scratch, Cybersecurity and the lawyers' course are rated beginner, and CS50x, CS50P and Scratch say prior experience is not needed; the AI course asks for CS50x or a year of Python, and Web Programming asks for CS50x or experience in another language, so their certificates say correspondingly more. R states no level, and Harvard says it can be taken before, during or after CS50x.
For other free credentials in the same fields, see the IT certifications page and the programming and computer science hubs; the article on how to take Harvard's free online courses covers enrolment step by step.