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.
E.M. PowerPoint Video Converter - E.M. PowerPoint Video Converter is an all-in-one PowerPoint to video converter.
EdApp - EdApp is a multi-award-winning mobile-first learning platform that introduces a better way to train teams anytime, anywhere, on any device.
Slidego - At SlideGo we regard presentation software like Powerpoint as a universal authoring tool.
CourseLab - Free powerful e-learning authoring tool
Leawo PowerPoint to Video - With Leawo PowerPoint to Video converter, you can convert PowerPoint file to video in all pop formats, like convert PowerPoint to AVI, WMV, MPEG, etc, and put PowerPoint on portable devices like iPod, iPhone, Pocket PC, PSP, etc.