Chamilo is an Libre/Open Source e-learning management system (LMS) focused on ease of use and speed. It offers a broad spectrum of features including SCORM and xAPI support, complex exams configurations, certificates generation, skills management, courses catalogue and courses shopping cart. It has proven use cases with more than 700,000 registered learners and more than 5,000 simultaneous connected learners. Cloud-compatible, high-availability capability and the fastest security flaws resolution in the industry.