Free online education courses and programs are available from KhanAcademy.org, EdX.org and CourseRA.org. Available courses cover topics including computer science, math, history, psychology and physics. There are courses that are self-paced as well as courses that follow an academic quarter or semester time line.
Programs offered by EdX.org and CourseRA.org allow users to participate in university level programs from colleges and universities around the world. The course materials, interactions and lectures can typically be accessed for free. As of November, 2015, EdX.org also gives users the option of earning a certification in the course for a course fee. Certificates are issued directly by the administering university for passing grades, the criteria for which varies from class to class. The course material is the same when pursuing a certification as when the course is taken for free.