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AVIF to ICO Converter

Convert AVIF images to ICO 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

Image Converter

How to use it

  1. 1

    Drop your AVIF files onto the converter

  2. 2

    Press Convert to turn them into ICO

  3. 3

    Download your ICO images one by one or as a ZIP

AVIF to ICO

Why convert AVIF to ICO?

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

Transparent areas stay transparent

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

Create a favicon or app icon

ICO is the icon format every browser and Windows understands. Convert a square AVIF to get a favicon for your site or an icon for a desktop shortcut.

AVIF vs ICO: what's the difference?

PropertyAVIFICO
Compression typeLossy or losslessLossless (exact pixels, larger files)
Transparent backgroundYesYes
AnimationYesNo
Where it opensChrome, Edge, Firefox and Safari 16+; many apps can't open it yetAll browsers as a site icon
Used forThe smallest high-quality images for the webWebsite favicons and Windows 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 ICO file?

ICO is the icon format of Microsoft Windows and the classic format for website favicons - the little image in a browser tab. One ICO file can hold several sizes (16 × 16, 32 × 32, 48 × 48 and more), so the icon looks sharp everywhere.

ICO supports transparency, so icons can have rounded or irregular shapes. Modern sites often add PNG and SVG favicons too, but favicon.ico is still the universal fallback.

How to open an ICO file

Windows shows ICO files in File Explorer and opens them in Photos; Mac Preview opens them too. GIMP and online editors can edit them. To make one, convert a square PNG - or use the Favicon Generator for a complete set.

Extension
.ico
Sizes
Several in one file (16-256 px)
Transparency
Yes
Best for
Favicons, Windows icons

AVIF to ICO

AVIF to ICO FAQ

Drag your AVIF files onto the converter at the top of this page and press Convert. Download each ICO on its own or grab them all in one ZIP - no software, no account.