While students at the Massachusetts Institute of Technology pay thousands of dollars for courses, the university will announce a new program on Monday allowing anyone anywhere to take M.I.T. courses online free of charge — and for the first time earn official certificates for demonstrating mastery of the subjects taught.

“There are many people who would love to augment their education by having access to M.I.T. content, people who are very capable to earn a certificate from M.I.T.,” said L. Rafael Reif, the provost, in a conference call with reporters Friday.

M.I.T. led the way to an era of online learning 10 years ago by posting course materials from almost all its classes. Its free OpenCourseWare now includes nearly 2,100 courses and has been used by more than 100 million people.

But the new “M.I.T.x” interactive online learning platform will go further, giving students access to online laboratories, self-assessments and student-to-student discussions.