MIT OpenCourseWare makes the materials used in the teaching of almost all of MIT's subjects available on the Web, free of charge. With more than 2,400 courses available, OCW is delivering on the promise of open sharing of knowledge

materials from

2400

courses

200

million visitors

• more site statistics

“The idea is simple: to publish all of our course materials online and make them widely available to everyone.” 
Dick K.P. Yue, Professor, MIT School of Engineering

Unlocking Knowledge

MIT OpenCourseWare (OCW) is a web-based publication of virtually all MIT course content. OCW is open and available to the world and is a permanent MIT activity.

• View a list of our most visited courses

Empowering Minds

Through OCW, educators improve courses and curricula, making their schools more effective; students find additional resources to help them succeed; and independent learners enrich their lives and use the content to tackle some of our world’s most difficult challenges, including sustainable development, climate change, and cancer eradication.

• Read more about how our materials are making a difference