Empressr is an online presentation tool that allows users to create, store, and share rich media presentations for free. It supports embedding audio, video, images and animations. Users can add shapes, clip art and charts. Presentations can be shared via link or embedded on websites. For education, Empressr is free to use, easy to sign up for, and allows embedding of multiple media types into slideshows. It also has simple editing tools and users can customize and secure their presentations.