How to Convert PNG to ICNS on Computer - Here are 3 Ways to Choose

Last Updated on March 7, 2024 by Peter Wood

In the field of digital design and application, icons play a key role and are a very important part of the user experience during the use of software. While PNG files are great for a variety of uses, when it comes to macOS apps and system icons, the ICNS format reigns supreme. If you have been looking for an easy and cost-effective way to convert PNG files to ICNS, in this article, you will have a detailed guide.

How to Convert PNG to ICNS

Part 1: How to Convert PNG to ICNS on Mac

Edit app icons for Mac, and you can do it directly on your Mac. Preview is a built-in program on MacOS that allows you to edit and view various types of images and documents. When saving the image and converting, you can select ICNS as the target format and you will get the ICNS icon from PNG.

Step 1: Find the PNG image that needs to be converted to ICNS on your computer, and right-click to bring up the shortcut menu. Click the Preview button under Open With and you will be able to open the PNG image in Preview.

Preview Open With

Step 2: In Preview, you can perform some basic viewing and editing of the image. Click the Duplicate button in File to make a basic copy of the layer. Still, in File, click the Save button to bring up the conversion dialog box.

Preview Duplicate Preview Save As

Step 3: Click the Save As button and you will be able to see all image types that can be converted. Select ICNS in it. After the selection is successful, click the Save button to convert the PNG image to ICNS and save it.

Preview Save Win Download Mac Download

Part 2: Convert PNG to ICNS by Using Online Converter

CloudConvert is a versatile online file conversion service that supports the conversion of various file formats, including image formats like PNG to ICNS. The batch conversion function provided by CloudConvert can quickly convert a large number of files without file size restrictions.

Step 1: Open the browser on your computer and enter to directly enter CloudConvert's PNG to ICNS page. Click the Select File button on the page, select the PNG image in the pop-up dialog box, and import it into the website.

CloudConvert Select File PNG to ICNS

Step 2: After the import is successful, the PNG image will appear in the list below. In the list, you can click the Add More Files button to batch import images into ICNS. Click the Convert button to start converting PNG images.

CloudConvert Convert PNG to ICNS

Step 3: Wait for the website to upload and convert. After the conversion is successful, the word Finished will appear. Click the Download button to save the ICNS image converted from PNG to your computer.

CloudConvert Download PNG to ICNS Win Download Mac Download

Part 3: How to Convert PNG to ICNS without Restriction

Preview has a restriction when converting PNG to ICNS icons. The PNG image must be larger than 512*512px. To be successfully converted. Although CloudConvert does not have this limitation, it does not have editing and preview functions. WidsMob ImageConvert does not have this trouble. As a professional image conversion software, it can convert PNG images to ICNS under various circumstances.

1. Import images in batches and view image-related information.

2. Modify the size of the image through 4 different modes.

3. Convert images to various formats, including ICNS, PNG, JPG, etc.

4. Export high-quality images through the AI Super Resolution function.

Win Download Mac Download

Step 1: Download and install WidsMob ImageConvert on your computer, start the software, click the Import button, and select the PNG image in the pop-up dialog box to import it into the software. After the import is successful, view the PNG image in the software, and you can also click the Add button to import multiple images in the software.

Import Photos to ImageConvert

Step 2: Select the image you want to convert to ICNS, and you will be able to view its details in the lower right corner. Click the Convert button and select Convert Selected Images or Convert All Images to enter the PNG to ICNS page. To the right of the image preview, you can see a lot of features that allow you to edit your image.

WidsMob Convert ICNS ImageConvert

Step 3: In Resize, you can customize the size of the image. Click the Mode button, select By Width in the pop-up dialog box, and then enter the corresponding value in Width, so that the size of the image can be modified without affecting the image proportion.

WidsMob Resize ICNS ImageConvert

Step 4: To ensure high-quality exported ICNS images, click the AI Super Resolution icon in the upper right corner of the page to summon the high-quality export function. Select the multiple that the GIF animation needs to restore. In Scale Mode, click the Apply button to apply it. Don't forget to click the Save As button to save it.

WidsMob Apply ICNS ImageConvert

Step 5: Re-open the high-quality exported PNG image, click the Icon Composer button, and select the Mac icon to summon the export dialog box for converting to an ICNS image. View the image's information in detail, if it is of low quality, it will not be allowed to be converted. After confirming that it is correct, click the Save button to save it on your computer, so that you do not have to successfully convert the PNG image to an ICNS image due to the lower quality.

WidsMob Mac ICNS ImageConvert Win Download Mac Download

Part 4: FAQ about Converting PNG to ICNS

1What is ICNS?
ICNS stands for Apple Icon Image format, and it is a file format used for storing icons on macOS. ICNS files can contain multiple image sizes and resolutions for use in various contexts. Converting PNG to ICNS is necessary when you want to create custom icons for macOS applications or system files. ICNS files are specifically designed for icons on the macOS platform.
2What are the methods to convert PNG to ICNS?
There are several methods to convert PNG to ICNS, including using specialized software, online converters, or even creating ICNS files manually by arranging image sizes within an ICNS container. At the same time, Mac also has its own built-in tools to convert PNG.
3Are there any considerations for creating high-quality ICNS files?
Yes, make sure your PNG images are of high quality and create ICNS files with multiple sizes for compatibility. It’s also important to adhere to Apple’s icon design guidelines on macOS. It is best to choose PNG images to ensure successful conversion of the image.


In today's digital environment, user interface and aesthetics are crucial, and having the right icons can make all the difference. Whether you're an experienced developer or a creative enthusiast, knowing how to convert PNG files to ICNS is a valuable skill. With the three methods discussed in this article, you can edit PNG images and ensure that your macOS apps and system icons are as visually appealing as they are functional.

Win Download Mac Download

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