Coursera offers a wide range of free online courses from top universities and institutions worldwide. While most courses are free to audit, you can often upgrade to a certificate for a fee.
edX provides access to high-quality courses from renowned universities. Many courses are available for free, and you can earn a verified certificate for a fee.
MIT OpenCourseWare offers free access to a vast collection of course materials from MIT's graduate programs, including lecture notes, assignments, and exams.
Stanford Online offers a selection of free courses covering various subjects. Although not all courses offer certificates, some do provide a statement of accomplishment upon completion.
Harvard offers free online courses through its online learning platform. While these courses may not grant a degree, they often offer certificates of completion.
Columbia University provides access to free online courses across disciplines. Although not all courses offer certificates, many do provide a statement of completion.
Open University offers free online courses and resources, covering a wide range of subjects.
utureLearn features a variety of free online courses from universities and institutions worldwide. Certificates of achievement are available for purchase upon completion.
Udemy hosts both paid and free courses on a wide range of subjects. While not all courses are free, many instructors offer free access to selected modules or provide certificates of completion.