Moodle.org open-source community-based tools for learning Moodle is a course management system (CMS) - a free Open Source software package designed to help educators create effective online courses based on sound pedagogical principles. You can download and use it on any computer you have handy (including webhosts), yet it can scale from a single-teacher site to a 200,000-student University. Moodle has a large and diverse user community moodle with system:unfiledby 44 users