Images conversion
Convert AVIF to ICO
Updated Jul 2026
AVIF is a modern, highly compressed format used for photos and web images, and ICO is the format Windows and browsers expect for icons and favicons. To convert AVIF to ICO, open the file in a converter and export it as ICO. Doing this on your own computer means the image never has to be uploaded anywhere.
- Extension
- .avif
- Type
- Images
- Typically
- Next-gen web images
- Compression
- Lossy
- Transparency
- Supported
- Extension
- .ico
- Type
- Images
- Typically
- Favicons, app icons
- Transparency
- Supported
Convert AVIF to ICO on your own computer. Nothing uploads.
How to convert AVIF to ICO
- Open Morphjet and drag in the AVIF image you want to convert, or a whole folder of them.
- Choose ICO as the output format.
- Convert. The ICO file is written next to your original, and nothing leaves your machine.
AVIF vs ICO: what actually changes
| AVIF | ICO | |
|---|---|---|
| Purpose | General photos and web images | App icons and browser favicons |
| File size | Very small, heavy compression | Larger, especially with several sizes bundled in |
| Quality | Lossy, some detail discarded on save | Lossless, keeps exactly what it's given |
| Multiple sizes in one file | No, one image per file | Yes, can bundle several resolutions together |
| Compatibility | Recent browsers and apps only | Recognized by Windows and browsers going back decades |
| Transparency | Yes | Yes |
When to convert, and when not to
Convert AVIF to ICO when you need a favicon for a website or an icon for a Windows app, since that's the format browsers and Windows actually look for in those spots.
Keep the AVIF if the image is just going to live as a photo or graphic on a page, since ICO is built for icons, not general images, and converting one to the other for no reason just makes the file bigger.
Why not just use an online converter?
A logo or icon you're turning into a favicon is often tied to a brand or a product that hasn't launched yet, and running it through an online converter means that image sits on a stranger's server while it's processed. Converting on your own computer keeps the file exactly where it started, with nothing sent out over the internet.
Questions
Does converting AVIF to ICO lose quality?
The conversion step itself doesn't lose anything, since ICO is lossless and keeps exactly what it's handed. Any compression already happened when the image was saved as AVIF, so the ICO just carries that forward.
Will transparency carry over from AVIF to ICO?
Yes. Both formats support transparency, so a logo or icon with a transparent background stays transparent after conversion.
Why do favicons need to be ICO instead of AVIF?
Browsers and Windows have looked for ICO files in that role for a long time, and it's still the safest bet for compatibility. AVIF is built for photos and general images, not for the small, multi-size icon format that favicons and app icons expect.
Does an ICO file hold more than one size?
It can. ICO was designed to bundle several resolutions of the same icon into a single file, so the right size gets picked depending on where it's shown.
Can I convert AVIF to ICO without uploading it?
Yes. A desktop app like Morphjet converts the file on your own computer, so it never has to travel over the internet.
Morphjet converts AVIF, ICO, and 1,800+ other formats, all on your machine. Launching this July.