Basically, you begin with an unbroken frosted glass window in the shape of your choosing: square, circle, arch, or fullscreen (which is the best option for anyone planning to use their creation as a computer background or screensaver). You have five options for “shatter mode,” which determines the angle of the line cutting into the glass: curves, straight lines, 45 degrees, triangles, or squares. Stained Glass Smash is free, but if you’d like to financially support the endeavor, you can click the “Buy Me a Coffee” button on the site—or just click here—to donate a few (or more) bucks to its creator, Michael Turvey.