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

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

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

Yes, this one. Converting AVIF 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 AVIF to ICNS without losing quality?

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

Will the transparent background survive converting AVIF to ICNS?

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

Can I convert an animated AVIF to ICNS?

ICNS only stores still images, so you'll get the first frame. To keep the animation, convert to GIF or WebP instead.

Can I batch convert AVIF to ICNS?

Yes. Add up to 30 AVIF 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 AVIF 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

AVIF to ICNS Converter

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

AVIF to ICNS

Why convert AVIF to ICNS?

The main difference: AVIF is a lossy or lossless format, while ICNS is a lossless format.

Transparent areas stay transparent

AVIF 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.

AVIF vs ICNS: what's the difference?

Property	AVIF	ICNS
Compression type	Lossy or lossless	Lossless (exact pixels, larger files)
Transparent background	Yes	Yes
Animation	Yes	No
Where it opens	Chrome, Edge, Firefox and Safari 16+; many apps can't open it yet	None (macOS icon format)
Used for	The smallest high-quality images for the web	macOS app icons

What is an AVIF file?

AVIF (AV1 Image File Format) is a modern image format based on the AV1 video codec, developed by the Alliance for Open Media - Google, Apple, Microsoft, Netflix and others. It typically produces smaller files than both JPG and WebP at the same visual quality.

AVIF supports transparency, HDR and wide color, which makes it a favorite for fast websites. Support outside browsers is still patchy, so downloaded AVIF files often need converting.

How to open an AVIF file

Chrome, Edge, Firefox and Safari 16+ display AVIF. Windows 11 opens it in Photos once the free AV1 Video Extension is installed; macOS Ventura and later preview it. For editors and forms that refuse it, convert to JPG or PNG.

Extension: .avif
Compression: Lossy or lossless (AV1)
Transparency: Yes
Best for: The smallest high-quality web images

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