Convert ICO to AVIF
Free ICO to AVIF converter. Keeps transparency. No signup, and your files are deleted after 1 hour.
Image Converter
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Maximum file size: 100 MB per file
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How to convert ICO to AVIF
Quick answer: To convert ICO to AVIF: upload your ICO file, choose AVIF as the output format, click Convert and download the result. It takes a few seconds, needs no account, and your files are deleted from the server after 1 hour.
- Upload your ICO file by clicking the upload area, dragging it in, or pasting an image URL.
- Select AVIF as the output format.
- Click Convert and wait a few seconds.
- Download your AVIF file, or download several files at once as a ZIP.
What changes when you convert ICO to AVIF
- Both formats support transparency, so see-through areas stay transparent.
- Neither format throws away detail in this conversion, so the pixels are preserved.
- Photos usually get smaller when saved as AVIF.
- Icons that hold several sizes are read as a single image.
ICO vs AVIF at a glance
| Feature | ICO | AVIF |
|---|---|---|
| Full name | ICO (Windows Icon) | AVIF (AV1 Image File Format) |
| Introduced | 1985 | 2019 |
| Compression | Lossless | Lossy or lossless |
| Transparency | Yes | Yes |
| Animation | No | No |
| Best for | Website favicons and Windows app icons | The smallest possible web images at high quality |
| Compatibility | Used for favicons and Windows icons; most photo viewers do not open it. | Supported by current Chrome, Firefox, Safari and Edge; older software cannot open it. |
When to choose AVIF instead of ICO
Choose AVIF for the smallest possible web images at high quality. Its main limit: older software cannot open it and it is slow to create.
Stay with ICO if you need website favicons and Windows app icons.
Related conversions
ICO to AVIF FAQ
How do I convert ICO to AVIF?
Upload your ICO file, select AVIF as the output format and click Convert. When it finishes, download the AVIF file. No software or account is needed, and your files are deleted after 1 hour.
Does converting ICO to AVIF reduce quality?
No. Both formats keep the full pixel data, so the converted image looks identical.
Is transparency kept when converting ICO to AVIF?
Yes. Both ICO and AVIF support transparency, so see-through areas are preserved.
Will the AVIF file be smaller than the ICO?
For photos, usually yes. AVIF compresses images more efficiently than ICO.
Where can I open a AVIF file?
Supported by current Chrome, Firefox, Safari and Edge; older software cannot open it.
Is it free and safe to convert ICO to AVIF here?
Yes. It is free for up to 20 files per day and 100 MB per file, with no sign-up. Files are processed on our server, never shared, and deleted automatically after 1 hour.
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