Khan Academy is not-for-profit with the goal of changing education for the better by providing a free world-class education to anyone anywhere.

We are committed to making the best education in the world freely available to any person who seeks it. We envision people throughout the world, in both developed and developing countries, using our platform to get access to world-leading education that has so far been available...

Udemy is an online learning and teaching marketplace with over 80000 courses and 24 million students, it uses content from online content creators to sell for profit.

Wikibooks is a Wikimedia community for creating a free library of educational textbooks that anyone can edit.

Wikiversity is a Wikimedia Foundation project devoted to learning resources, learning projects, and research for use in all levels, types, and styles of education from pre-school to university, including professional training and informal learning.

Online university-level technical courses. We believe university-level education can be both high quality and low cost. Using the economics of the Internet, we've connected some of the greatest teachers to hundreds of thousands of students all over the world.

Brilliant.org, also known as Brilliant, is a website and associated community that features problems and courses in mathematics, physics, quantitative finance, and computer science.

The OpenCourseWare Consortium is a collaboration of higher education institutions and associated organizations from around the world creating a broad and deep body of open educational content using a shared model.

Academic Earth offers free access to video courses and academic lectures from leading colleges and universities.

BitDegree is a gamified platform for gaining Web3 skills while earning rewards. Complete fun tasks to get prizes from top crypto brands.

University of the People is the world’s first tuition-free, non-profit, online academic institution dedicated to opening access to higher education globally for all qualified individuals, despite financial, geographic or societal constraints.

Pocket Scholar is a science-learning platform centered around breaking down complicated science topics into smaller chunks that makes them easier to understand. We believe in a future where everyone has access to high quality, college level content that they actually can...