Almost inconceivably, what is now everything in the browser can do are: Peacock is a Flash application, which is practically a complete node-based compositing system. While all currently works only with still images, but it can be useful when you quickly want to try out an idea. Even for basic training purposes, the program is certainly not uninteresting. And who knows, maybe the (version) jump to the moving closer than we think. To try out the program, simply follow the link and left on "Effects Editor" button.