Convert ICNS Online
ICNS - Apple Icon Image
The Apple Icon Image format is an icon format used in Apple Inc.'s macOS. It supports icons of 16 x 16, 32 x 32, 48 x 48, 128 x 128, 256 x 256, 512 x 512 points at 1x and 2x scale, with both 1- and 8-bit alpha channels and multiple image states (example: open and closed folders). The fixed-size icons can be scaled by the operating system and displayed at any intermediate size.
The file format consists of an 8 byte header, followed by any number of icons. Over time the format has been improved and there is support for compression of some parts of the pixel data.
The list shows what formats can convert to ICNS and what formats can be converted from ICNS. Click on a link below to start a specific conversion.