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Coursera partners with accredited universities and leading companies such as Google and IBM to offer courses, Specializations, and Professional Certificates. Employers widely recognize these …

MasterClass offers online classes created for students of all skill levels. Our instructors are the best in the world.

Class Central aggregates courses from many providers to help you find the best courses on almost any subject, wherever they exist.

Search for classes, add classes to your cart, drop classes and change your grade mode here. Classic registration is also still available. CU’s Grade Replacement policy has been updated to benefit more …

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Some of the best free courses online cover a wide range of topics, from technology and business to arts and humanities. For example, the Code Free Data Science course offers an introduction to data …

Use the search panel on the left to find and narrow down classes of interest. Note: Days of the week are abbreviated in MTWRFSU format. Beginning with Fall 2025 registration, most online undergraduate …

Learn in-demand skills with online courses, get professional certificates that advance your career, and explore courses in AI, coding, business and more.

Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a …