A Learning Management System (LMS) is a software application or platform that is used to plan, deliver, and manage educational or training content. LMSs are often used by schools, universities, and businesses to provide online learning experiences to students or employees. They typically include features such as the ability to upload and organize course materials, create quizzes and assessments, and track student progress. LMSs can also support collaboration and communication among students and instructors, and may include features such as forums, chat rooms, and virtual classrooms. Some LMSs are proprietary and require a license or subscription to use, while others are open-source and freely available.