Wikibooks (Wikimedia Free Textbook Project and Wikimedia-Textbooks) is a wiki-based Wikimedia project hosted by the Wikimedia Foundation for the creation of free content textbooks and annotated texts that anyone can edit. Developed by Wikimedia Foundation
License: Open Source
Khan Academy focuses on structured, video-based learning with interactive exercises, making it ideal for users seeking a guided educational experience. In contrast, Wikibooks offers a vast array of collaboratively created textbooks and resources, catering to self-directed learners who prefer a more open-ended approach.