iSpring Free - iSpring Free is a free eLearning authoring tool that allows you to create responsive courses and quizzes right in PowerPoint and convert them to HTML5 or SCORM.
H5P - H5P is a free and open-source content collaboration framework based on JavaScript.
isEazy - Cloud-based eLearning course authoring tool
Articulate Storyline - Articulate Storyline is a program that allows you to create interactive courses of any kind with templates and a simple system. There is a free trial offered so that you can determine whether you want to use the program further or not.
Crowd Wisdom - Crowd Wisdom is a learning management system that is providing teams to have a better learning environment to grow their business and make things more visible.
Slidego - At SlideGo we regard presentation software like Powerpoint as a universal authoring tool.