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.
Crowdin - Localize your product in a seamless way
CourseLab - Free powerful e-learning authoring tool
POEditor - The translation and localization management platform that's easy to use *and* affordable!
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.
Lokalise - Localization tool for software developers. Web-based collaborative multi-platform editor, API/CLI, numerous plugins, iOS and Android SDK.