Popplet is a web-based and iPad application that allows users to create visual representations of their ideas using graphic organizers, mind maps, and other diagrams. It can be used by students and teachers to organize concepts and by professionals for brainstorming and project planning. Users create "popples" or boxes that can contain text, images, or videos. Popplets can be shared collaboratively in real-time or kept private. Both free and paid subscription plans are available.