Images
ICNS files
The icon format of macOS. One ICNS file holds the same icon at several sizes, up to 1024 × 1024 pixels.
- Full name
- Apple Icon Image
- Made by
- Apple
- File extension
- .icns
- Compression
- Usually PNG inside
- Transparency
- Yes
- Best for
- Mac app, folder and file icons
- Opens in
- macOS; rarely anything else
- In FileFlip
- Opens and saves
Good at
- Several sizes in one file
- Used directly by macOS
Not so good at
- Only useful on the Mac
ICNS in FileFlip
FileFlip opens ICNS files and saves to ICNS.
Convert ICNS to
Convert to ICNS from
See all formats or all conversions.
Convert a whole folder of images at once
FileFlip also handles video, audio, PDFs, documents and data files. Requires macOS 14 Sonoma or later.
Coming soon for Mac