AVIF to ICO processes files locally in your browser.
What AVIF to ICO conversion does
Convert an AVIF image to a Windows ICO icon directly in your browser. Generate a single size, or the default multi-size package covering 16, 32, 48, 64, 128, and 256 px in one .ico file.
How to convert AVIF to ICO
- Choose a AVIF file.
- Pick a single icon size, or leave the default multi-size package selected.
- Select Convert & download.
- Save the .ico file from your browser downloads.
Why use this conversion
ICO is the format Windows expects for application icons, desktop shortcuts, and favicons. A single square image can be turned into a real, multi-resolution .ico file ready to use.
Transparency and output quality
Each embedded size keeps the source’s alpha channel — this is a real ICO container (ICONDIR plus one entry per size), with each size embedded as genuine PNG-compressed image data, not a renamed bitmap. Each icon entry uses PNG compression, so a single-size ICO stays small; the multi-size package is larger since it bundles six images.
Privacy and local processing
- Processing occurs locally in the browser.
- Files are not uploaded to Looty Tools for conversion.
- Converted files remain on your device.
Limits and known issues
- Input: AVIF (.avif) only, up to 25.0 MB and 8,192 px per side.
- Each icon size is generated by resizing the full image to a square canvas, so a non-square source will be stretched to fit.
- Animated AVIF: only the first decodable frame is converted to ICO. Animation is not preserved. AVIF decoding depends on your browser.
- Metadata is not preserved in the downloaded file.
Related tools
AVIF to ICO FAQ
- Why convert AVIF to ICO?
- ICO is the format Windows expects for application icons, desktop shortcuts, and favicons. A single square image can be turned into a real, multi-resolution .ico file ready to use.
- Can I generate a multi-size ICO?
- Yes. The ICO output defaults to a multi-size package covering 16, 32, 48, 64, 128, and 256 px, or you can pick a single size from the dropdown.
- Is this a real ICO file, or a renamed image?
- A real ICO container (ICONDIR plus one entry per size), with each size embedded as genuine PNG-compressed image data.
- What happens with an animated AVIF file, and does every browser support AVIF?
- Only the first decodable frame is converted; animation is not preserved. AVIF decoding also depends on your browser — unsupported browsers show a clear decode error instead of a mislabeled download.
- Are my files uploaded?
- No. Conversion runs locally in your browser and does not upload your file to Looty Tools servers.
- What is validated before conversion?
- The file must actually be an AVIF — the tool checks the ISO-BMFF ftyp brand, not just the filename or extension, before decoding.