The leading educational internet platforms are founded by professors from Stanford, MIT and Harvard. They provide a free access to MOOCs from the best universities worldwide including programs in different languages. Some may asking to pay some fee for certification, if you need it.
They constantly continue to expand by attracting new partners-universities and offering more and more learning products. Popular MOOC providers are positioning themselves as totally free services. There are no paid courses.
Free education resources are in great demand among learners. Along with free courses in many subjects, here you can find a number of other educational products, tests, practical exercises, videos, which are very helpful for people of all ages and can be used for a self-studying.