Moodle is a free and open-source learning management system that can be used to build e-learning websites. It allows educators to create online courses with various tools like assignments, quizzes, forums and resources. Moodle has over 400,000 registered users worldwide and is used by schools, universities and companies. It provides features for course management, learner management and website management. Learner management in Moodle includes tracking learner information, dividing learners into groups, and viewing grades and access reports. Moodle allows for flexible online learning experiences and effective learning communities.