Convert ICO to AVIF
Turn ICO files into AVIF in seconds. Convert many files at once; everything happens on your device, so it's fast and private.
To convert ICO to AVIF, drop your ICO file into AnyView and click the “AVIF” button. Your AVIF file downloads in seconds. It's free, needs no sign-up, and the file is converted inside your browser — never uploaded.
Open HWP, Figma, archives, mail, CAD and 200+ formats right on your device — offline, from the Files app or the share sheet.
How to convert
- Drop your ICO files into the box above, or click to choose.
- Under "Convert to", click AVIF.
- Your AVIF file downloads automatically when it's done.
Icon format used for Windows icons and website favicons. Holds several sizes in one file.
Next-generation image format based on AV1. Excellent quality at very small sizes.
When to use it
- AVIF gives the smallest files of any common format, great for modern websites.
Format comparison: ICO vs AVIF
| ICO | AVIF | |
|---|---|---|
| Transparent background | Yes | Yes |
| Animation | No | Yes |
| Compression | Lossless | Lossy or lossless |
| Opens on Windows (built-in) | Yes | Partly |
| Opens on Mac (built-in) | Partly | Yes |
| Opens on iPhone (built-in) | No | Yes |
| Shows in web browsers | Yes | Partly |
FAQ
Is it really free?
Yes. No sign-up and no watermark. The site is supported by ads, and Pro removes them.
Are my files uploaded?
No. Every conversion runs inside your browser on your own device, so private documents stay private.
What's the difference between ICO and AVIF?
ICO: Icon format used for Windows icons and website favicons. Holds several sizes in one file. AVIF: Next-generation image format based on AV1. Excellent quality at very small sizes.
Does it work on my phone?
Yes. It works the same in iPhone and Android browsers.