Loopy is a free tool for creating your own animated simulations or illustrations of a concept. This free animation tool is designed to showing relationships between two or more parts of a system. It's perfect for showing cause and effect or for showing a workflow system.
To create an animation on Loopy you simply have to click on the blank canvas to place a circle that represents the start of a system. Then click on the canvas again to add another element to your system animation. To connect the two (or more) pieces you use a drawing tool to connect them. Once you've drawn the connections you can add cause and effect commands by selecting them from the Loopy editor.