Side by side
Compare tools
3 tools selected
featured
CS50
Harvard’s intro computer science course: lectures, problem sets, and a free certificate track
4.9
FreeFree to take; optional ver…
| Spec | CS50 | Code.org | Udacity |
|---|---|---|---|
| Category | Education & Learning | Education & Learning | Education & Learning |
| Pricing | Free to take; optional verified certificate on edX | Free | Paid nanodegree subscriptions |
| Rating | 4.9 (48,000) | 4.8 (320,000) | 4.3 (18,600) |
| Community | 97/100 | 95/100 | 81/100 |
| Tier | featured | featured | verified |
| Best for | computer-science, course, harvard, programming | curriculum, computer-science, ai, teachers | nanodegree, programming, data, career |
| Top features |
|
|
|