Convert ICO to AVIF Online — Free
Fast, free ICO to AVIF converter. No registration required.
Drop files here or click to browse
Supports: ICO files
Max: 100MB (free) · 2GB (Pro)
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Files auto-deleted after processing
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Works Everywhere
Any browser, any device
How to Convert
Upload your .ico file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .avif file when it's ready.
What is ICO?
ICO is the image format used for icons in Windows. It can contain multiple image sizes in a single file for different display contexts.
Format Details
- Full Name
- Windows Icon
- Extension
- .ico
Key Features
- Windows icons
- Multiple sizes
- Favicon support
- Transparency
What is AVIF?
AVIF is a modern image format based on the AV1 video codec. It offers the best compression available, outperforming both WebP and JPEG.
Format Details
- Full Name
- AV1 Image File Format
- Extension
- .avif
Key Features
- Best compression
- HDR support
- Transparency
- Modern browsers
ICO vs AVIF
| Feature | ICO | AVIF |
|---|---|---|
| Full Name | Windows Icon | AV1 Image File Format |
| Extension | .ico | .avif |
| Best For | Windows icons | Best compression |