Convert AVIF to ICO
If a designer handed you an AVIF logo and you need a favicon or a Windows application icon, ICO is the format the operating system and older browsers actually look for. Despite modern browsers accepting PNG and SVG favicons, a favicon.ico at the site root remains the fallback that never fails.
Drop your AVIF files below and download ICO in seconds. Free, unlimited and completely private: the conversion runs inside your browser, so your files never leave your device and are never uploaded to a server.
No upload. Works with your network switched off. Check it yourself, or read what actually happens to your file.
Why convert AVIF to ICO?
The important constraint is size. Icons are tiny by definition, so almost none of the detail in a full resolution AVIF survives the trip. Simple, high contrast artwork reads far better at icon scale than a detailed photograph.
AVIF is based on the AV1 video codec and reaches even smaller files than WebP at the same visual quality. All modern browsers can display it, but many image editors and older tools cannot open it yet, which is the main reason people convert AVIF to an older format.
ICO files bundle one or more icon sizes into a single file that Windows and browsers use for favicons and app icons. Regular image viewers often refuse to open them, and most editors cannot save them, so a converter is the practical way in or out of the format.
What this converter does to your AVIF file
The AVIF is decoded and, if either side is larger than 256 pixels, scaled down proportionally to fit within 256x256, which is the maximum an ICO image can hold. The result is written as a single 32 bit PNG-compressed entry inside the ICO container, so transparency is preserved. Note that this produces a single size icon rather than a multi-size ICO bundle.
AVIF vs ICO at a glance
| AVIF | ICO | |
|---|---|---|
| Full name | AV1 Image File Format | Windows icon |
| Compression | Lossy or lossless | Contains PNG or BMP data |
| Transparency | Yes | Yes |
| Best for | Next generation web images | Favicons and Windows application icons |
What changes when you convert AVIF to ICO
| What happens | |
|---|---|
| Image quality | Depends on the quality setting above, which controls how much detail ICO keeps. |
| Transparency | Kept. ICO stores an alpha channel, so cut-out backgrounds and soft edges survive. |
| EXIF and GPS | Removed. The conversion goes through a pixel buffer, so camera data and location are not carried into the ICO file. |
| Colour profile | Not carried across. The image is handled in sRGB, which is right for the web and wrong for colour-managed print work. |
| Animation | Not preserved. An animated AVIF produces a single still frame. |
| File size | Varies with the content of the image. No figure is quoted here, because none has been measured on a documented test set. |
How to convert AVIF to ICO
- Drop one or more AVIF files into the box above, or click to browse.
- ImageConvert converts each file to ICO right on your device.
- Download a single file, or grab everything at once as a zip.
Frequently asked questions
What size icon do I get?
Up to 256x256, the maximum a single ICO entry supports. Anything larger is scaled down proportionally to fit. Images already at or below that size keep their dimensions.
Does the ICO keep transparency?
Yes. The icon data is stored as 32 bit PNG inside the ICO container, so an AVIF with an alpha channel keeps its transparent background.
What is an AVIF file?
AVIF is a next generation format with excellent compression, increasingly used on modern websites.
What is an ICO file?
ICO is the Windows icon format, used for favicons and application icons.
Is it free to convert AVIF to ICO?
Yes. There are no limits, no watermarks and no account needed. Convert as many AVIF files as you like.
Are my files private?
Completely. Your AVIF files never leave your browser and are never uploaded to a server, so your images stay on your device.