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Harvard Online
Programming Languages
CS50x: Introduction to Computer Science
Harvard's legendary introduction to computer science and the art of programming.
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42 new free courses added this week from Harvard, Google and freeCodeCamp
freeCodeCampGoogleedXSee what's newHarvard's open catalogue, including CS50.
Harvard publishes a large free catalogue through its Online Learning portal and edX, headlined by CS50 — the introduction to computer science used by hundreds of thousands of learners each year. All course material, lectures and problem sets are free; only the verified certificate carries a fee.
Courses are free to audit; a verified certificate is optional and paid.
Learners who want rigorous, university-level foundations rather than a quick tutorial.
2 of 2 courses
Harvard Online
Programming Languages
Harvard's legendary introduction to computer science and the art of programming.
Harvard Online
Web Development
The CS50 follow-on that builds real web applications with Django and JavaScript.
Duration, rating and certificate terms are indicative and set by the provider. Every enrol button opens the provider's own page in a new tab — we never host or resell a course.