App icon resizer

How to use

Pick one square image (1024×1024 px is best). You get an AppIcon.appiconset folder, zipped, ready to drop into Xcode's asset catalog. Your image never leaves this page.

Or drag an image onto this box.

Options

Apple's guidelines ask for a full-bleed, opaque background. When this is on, the PNGs are saved with no alpha channel at all.

Where the sizes come from