Canvas by Instructure - The Canvas LMS is the world's fastest growing learning management system. Check out favorite features and schedule a live demo!
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!
NWEA Assessments - NWEA Assessments creates a personalized assessment experience by adapting to each student's learning level.
Open edX - Open edX is implemented mostly in Python (with some Ruby and NodeJS as well) and the code is being...
ALEKS - ALEKS is a web-based artificially intelligent assessment and learning system that uses adaptive questioning to accurately determine exactly student knows.
Edmodo - Where Learning Happens