Moodle is a free and open-source course management system (CMS) that allows educators to create online learning communities. It can be downloaded from Moodle.org and installed on a web server. Moodle provides a variety of tools and activities to engage students asynchronously and synchronously, including forums, chats, assignments, quizzes, databases, wikis, glossaries and more. It also includes features for multimedia embedding, grading, reporting on student activities and engagement, and other resources to facilitate online learning.