icns Machine is the easiest way to generate icns files for your Mac applications. With icns Machine, you can create an icns file from a single image or from multiple images. You can also set a scaling option for your source image(s).
-Generate an .icns file from a single image.
-Generate an .icns file using multiple images for all the required sizes.
-Choose a scaling option for the generated icns file. icns Machine offers the following scaling options: "Scale to Fill", "Aspect Fit", and "Aspect Fill".
With Family Sharing set up, up to six family members can use this app.