Massive Open Online Courses, or MOOCs, are online courses open to large numbers of learners. Universities, companies, and nonprofits offer them through platforms on the internet. Many courses are free to take, with optional paid certificates for those who want proof of completion.
A typical MOOC includes recorded video lessons, readings, quizzes, and discussion forums. Learners work through the material on their own schedule. Some courses run on fixed start dates, while others let you begin any time.
People take MOOCs for many reasons: to learn a new skill, prepare for a career change, or study a subject for fun. Certificates can be listed on a resume, though employers weigh them less than degrees. The real value is the knowledge and the habit of learning.
MOOCs are not for everyone. They require self-discipline, since no one checks whether you log in. Completion rates are low, which is normal for free courses. Treat a MOOC like a class: set a weekly schedule and stick to it.
If you want a degree rather than a single course, compare accredited online degrees and read our guide to online vs in-person learning. Also check whether online degrees are respected by employers before you commit.

