Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!
Google Classroom - Learning management tool by Google
Chamilo - Chamilo is a software that allows you to create a virtual campus for the provision of online or semi-online training.
Toddle App - Developed by experienced educators, Toddle streamlines curriculum planning, projects & portfolios, assessments & reports, and online learning - all from one place!
Open edX - Open edX is implemented mostly in Python (with some Ruby and NodeJS as well) and the code is being...
schoology - An online learning, classroom management & social networking platform that provides educators & students w/ more effective, efficient & engaging ways to learn.