ICNS File

What are ICNS files and how to open them

Are you having problems opening an ICNS file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your ICNS files.

What is an ICNS file?

An .ICNS file is a Mac OS X Icon file.

Files that contain the .icns file extension usually store icon image files. These icon image files are used by the Mac OS X operating system. This file format supports both one and 8-bit alpha channels as well as multiple image stages, including folder icons in both the opened and closed states.

Each ICNS file is associated with a corresponding application. The ICNS file acts as a container file and stores the individual icon and resources within the file container. The user's operating system can scale the icons contained within the files to adjust to the proper display size.

How to open ICNS files

We have identified two ICNS openers that are compatible with this specific type of ICNS file.

Programs that open Mac OS X Icon files

Last updated: December 22, 2023

Various apps that use files with this extension

These apps are known to open certain types of ICNS files. Remember, different programs may use ICNS files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about ICNS file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.