Can I convert PNG to ICNS on iPhone, Android, Mac or Windows?

Yes. ConvertPixels works in Safari, Chrome, Edge and Firefox on any device, so you can convert PNG to ICNS on your phone or computer without installing an app.

Is there a free PNG to ICNS converter with no sign-up?

Yes, this one. Converting PNG to ICNS on ConvertPixels is free, with no sign-up, no watermark and no daily cap. Convert up to 30 files per batch, each up to 50 MB.

Can I convert PNG to ICNS without losing quality?

Yes. ICNS is a lossless format, so your converted file is pixel-for-pixel the same as the PNG. (It can't add back detail the original never had.)

Will the transparent background survive converting PNG to ICNS?

Yes. Transparency is supported in both formats and is preserved exactly.

Can I batch convert PNG to ICNS?

Yes. Add up to 30 PNG files and convert them in one batch. You can even choose a different output format for individual files, then download them separately or together as a ZIP.

Is it safe to upload PNG files to ConvertPixels?

Yes. Uploads use an encrypted connection and are processed automatically - nobody views them. Your originals are deleted straight after conversion and the results within an hour, or instantly if you click "Delete from server now".

Convert

PNG to ICNS Converter

Convert PNG images to ICNS online in seconds - free, with no sign-up and no watermark. Batch convert up to 30 files and download them together as a ZIP.

Free
No sign-up
No watermark
Private by design

Choose filesor drag and drop files hereUp to 30 files · 50 MB each

Image Converter

How to use it

1
Drop your PNG files onto the converter
2
Press Convert to turn them into ICNS
3
Download your ICNS images one by one or as a ZIP

PNG to ICNS

Why convert PNG to ICNS?

PNG and ICNS are both lossless formats. ICNS is the usual choice for macOS app icons.

Transparent areas stay transparent

PNG and ICNS both handle transparency, so anything see-through in the original is still see-through after conversion.

Where ICNS works best

ICNS is ideal for macOS app icons. Converting gives you a file that works in the apps and websites that ask for ICNS.

PNG vs ICNS: what's the difference?

Property	PNG	ICNS
Compression type	Lossless (exact pixels, larger files)	Lossless (exact pixels, larger files)
Transparent background	Yes	Yes
Animation	No	No
Where it opens	All browsers and devices	None (macOS icon format)
Used for	Logos, screenshots, graphics, images with text or transparency	macOS app icons

What is a PNG file?

PNG (Portable Network Graphics) is a lossless image format created in 1996 as a patent-free replacement for GIF. It stores every pixel exactly, so text, logos and sharp edges stay perfectly crisp however often you save the file.

PNG supports full transparency, which makes it the standard format for logos, icons, screenshots and graphics placed on top of other designs. For photos, though, PNG files are several times larger than JPG.

How to open a PNG file

PNG opens everywhere: Windows Photos, Mac Preview, iPhone and Android galleries and every web browser. Editors like Photoshop, GIMP, Figma and Canva keep the transparency intact.

Extension: .png
Compression: Lossless
Transparency: Yes
Best for: Logos, screenshots, graphics, text

What is an ICNS file?

ICNS is Apple's icon format for macOS apps. Like ICO on Windows, one file bundles the same icon in several sizes - from 16 × 16 up to 1024 × 1024 pixels - so it looks crisp in the Dock, Finder and on Retina displays.

Developers need ICNS when packaging a Mac application. For websites and Windows, use ICO or PNG instead.

How to open an ICNS file

Mac Preview opens ICNS files and shows every size inside. Xcode and icon tools create them. Windows can't open ICNS without extra software - convert it to PNG to view it there.

Extension: .icns
Sizes: 16 to 1024 px in one file
Transparency: Yes
Best for: macOS app icons