Coursera

Coursera, which was founded by Stanford professors, makes all of its courses available for free as part of its objective to make education accessible to everyone, everywhere.

Coursera has collaborated with over 200 prominent universities and organizations to build its learning programs, including Imperial College, Stanford University, Google, and IBM. Coursera provides nearly 2,000 free courses. You won't obtain a certificate, but it is a good opportunity to upgrade your knowledge. Its courses are taught by professors from top colleges and educational institutions throughout the world. The platform functions as a virtual campus with video lectures, peer-review assignments, and community discussion forums.

Most Popular Subject: Data science
Users: 23 million registered
Website: https://www.coursera.org/