This article introduces an emerging open source HTML5 eLearning authoring tool called H5P. With H5P, you can create mobile friendly, interactive HTML5 eLearning content directly in a web browser without any technical skills. Like Flash, H5P content is a single file that you can easily administer and move from a CMS to an LMS. Unlike Flash, no plugins are required for the end user and no local eLearning authoring tool installation is necessary. H5P is Open Source and Free to use.