Desktop Aquarium OS X: Desktop Aquarium's name should imply what it does: put an aquarium on your Mac's desktop. The free version includes shorter videos (30 seconds) and occasional popup ads.

Live wallpapers aren't a new invention, but they're not exactly common on Windows 10. But, there's always someone out there that can make these things happen, as is the case with Wallpaper Engine.

In this article, we're going to share a list of open-source and free tools to change the desktop wallpaper animation when you move your cursor, add support for widgets, and more.