Coursera is another one of the biggest course providers. It was developed in 2012 by Stanford University computer science professors. Coursera provided its courses through a lot of high-standard universities and other organizations. this is why the education quality at Coursera is too high. Coursera has a lot of various online courses, certifications, and degrees in a variety of subjects. In general, the courses at Coursera are free. Bit for people who want to give an accused to the graded assignments or earn a Course Certificate, they will be needing to pay. On signing up for these courses, you will be asked to choose a Full Course, No Certificate. Coursera has a different Specialization which has multiple courses in it. In completing each of the courses, people receive a Specialization certificate.