Educational websites

Wikiversity is a Wikimedia Foundation project that supports learning communities, their learning materials, and resulting activities. It differs from Wikipedia in that it offers tutorials and other materials for the fostering of learning, rather than an encyclopedia. It is available in many languages.

Lingvist is an adaptive language-learning platform, available in an international public free beta version since 2014.

LinguaLeo is an English language learning platform for Russian, Turkish, and Brazilian Portuguese speakers. As of September 2020, it reported 23 million users. LinguaLeo is available on the web, as Android, iOS, Windows Phone apps, and as a browser extension.