Wikibooks is the best platform for free textbooks and is used by students and educators worldwide.

Wikiversity is the best platform for free learning resources and is used by students and educators worldwide.

Alison is the best platform for online courses and is used by individuals and organizations seeking to upskill their workforce.

Flippity is a free web tool that converts Google Spreadsheets into interactive educational resources like flashcards, quizzes, and games for educators.

RoomRecess offers over 160 free, fun online learning games for elementary students covering math, reading, ELA, typing, and computer skills.

Lernfoerderung.de offers extensive free learning materials, tips, and videos covering German language skills (writing, spelling, grammar) and mathematics for school children.

And Learning is a free educational resource providing tutorials, interview guides, math/chemistry formulas, and a platform for users to contribute learning materials.

Platform for inclusive education, providing resources and tools for educators, learners, and institutions.

Online tutoring for university students in Biochemistry and Biology, offering flexible booking without contracts or subscriptions, plus free learning materials.

E-learning for kids is the best platform for digital education and is used by children worldwide seeking free learning resources.