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
Wikibooks is a free and collaborative platform for accessing a wide range of user-generated learning materials, while Udacity focuses on providing structured, industry-relevant courses with formal certifications. Wikibooks is ideal for self-learners seeking diverse topics without costs, whereas Udacity caters to those looking for career advancement through organized learning paths.