What is Apple icon image?
A macOS icon container that can hold multiple image sizes for application and document icons.
Icon export uses supported raster sizes. Animated images become a still icon.
Technical details
ICNS is a resource container that can store multiple icon representations at different resolutions and pixel depths. [1]
Background and compatibility
Apple uses ICNS as a macOS icon resource format; application bundles associate icon resources through bundle metadata. [1]
Sources and references
- Core Foundation Keys: IconsApple Developer Documentation
Preview on your device
Visual image preview; decoding depends on the image encoding and browser.
Conversion support
Choose a file in the workspace to see the available output formats and options. A supported container may still contain an unsupported codec.
Read the format reference on Wikipedia ↗