H5P is a free, open-source content creator that allows you to easily create, share, and reuse interactive HTML5 content and applications. H5P activities can be created and embedded directly in Moodle or WordPress, making it easy to add rich, interactive learning content to your courses.
Padlet is a collaborative web platform in which users can upload and share a variety of rich multimedia content to a virtual bulletin board in either real-time or asynchronously. With an easy and intuitive interface, Padlet does not require invited users to create an account and can be accessed on a variety of devices or embedded directly into Moodle or your WordPress site.