100% Secure & Private
ICNS Converter
Turn ICNS files into other formats in seconds, straight in the browser. No account, no file size cap. For whole folders and other formats, get reaConverter.
How to Convert .icns Files in Bulk
1. Install reaConverter
2. Select ICNS Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless ICNS file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.
Extra Tools
Do more with your files
Converting ICNS files for use in a larger project? reaConverter offers many ways to process files, so you can customize them according to your requirements.
Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.
User reviews
From those who tried it
Average User Rating:Last updated on June 28, 2026
Questions & Answers
ICNS files: Frequently Asked Questions
What are ICNS files?
ICNS is an image file format associated with icons of various sizes used by applications on Mac operation systems. Such files contain not just images, but also support 1-bit and 8-bit alpha channels. Creating and opening ICNS files is possible using some specialized Mac programs. Accessing ICNS files outside these programs is only possible if you convert them to more widely available formats.
Can reaConverter open ICNS files?
reaConverter fully supports the ICNS file format – open, edit, and export ICNS files to any other popular file format with ease.
How do I change ICNS to another format?
reaConverter is a user-friendly tool for converting ICNS files. Once installed on your computer, it allows you to convert all your .icns files at once with just a few clicks. You can even convert icns images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert ICNS online?
If you only want to convert a few ICNS files, you are welcome to try our free online ICNS converter.
How can I turn ICNS files on my computer to another format?
The best way to convert ICNS files on your PC is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from ICNS.
How can I automate ICNS files conversion?
reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.
Can I convert ICNS files using scripts or the command-line interface?
reaConverter provides full access to all its features from the Windows command-line shell, including the command-line icns converter.
What else can I do with reaConverter?
Convert GIS filesConvert whole-slide imagesImage resizerConvert vector filesChange image DPI
What formats can I convert a ICNS file to?
Discover More
Beyond ICNS conversion
Convert .icns files in batches of any size, with editing and processing applied along the way. The same tool also handles 700+ other formats, including CAD, medical imaging, and GIS.
