Moodle is a free and open-source learning management system (LMS) that can be used to create effective online courses. It provides educators with tools to manage courses and promote learning. Key features include activities like assignments, forums, chats and quizzes to engage students. Moodle also offers features for learner management, including profiles, calendar events, file sharing and grading. It is a flexible system that can be used for blended, fully online or supplemental courses across different educational institutions. Over 1,150 organizations in 81 countries currently use Moodle.