Free online ICO to AVIF converter
Convert ICO icons to AVIF for smaller files and modern image workflows.
Convert ICO to AVIF online - free
Image size
Keeps aspect ratio and fits within these limits. Fill in one or both; leave empty for no limit. Larger values may enlarge the image.
Correctly orient the image using the gravity sensor data stored in EXIF
Strip the image of any profiles, EXIF, and comments to reduce size
Your file is processed instantly and never stored on our servers.
How to convert ico to avif file
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ICO is a Windows icon format used for application and system icons, often storing multiple sizes and color depths in one file. AVIF is a modern image format based on the AV1 codec, designed for high compression efficiency and excellent image quality at small file sizes.
Why convert ico to avif
Converting ICO to AVIF is useful when you want to reuse icon artwork in modern web or app workflows. AVIF usually delivers much smaller files than older raster formats while preserving strong visual quality, making it a good choice for optimized image delivery.
How the conversion works
An ICO file may contain several embedded images at different resolutions. During conversion, the converter typically extracts one icon image or the best available size and saves it as an AVIF image. If the ICO contains transparency, that transparency can usually be preserved in the output.
Best software for ico to avif
XnConvert is one of the best desktop tools for this conversion because it supports many formats, batch processing, and quality settings. It is especially useful if you need to convert multiple ICO files at once.
Another strong option is ImageMagick, which is powerful for advanced users and automation. For command-line conversion, it can be very flexible.
How to convert with XnConvert
- Open XnConvert and add your ICO file.
- Go to the output settings and choose AVIF as the target format.
- Adjust quality, resizing, or transparency options if needed.
- Click Convert to create the new file.
How to convert with ImageMagick
If you prefer command-line tools, use a command similar to:
magick input.ico output.avif
This works well for simple conversions, though the exact result may depend on which icon image inside the ICO file is selected.
Important things to know
- ICO files may contain multiple embedded sizes, but AVIF stores a single image per file.
- Some icon-specific details, such as multiple resolutions in one file, will not carry over.
- Transparency is usually supported in AVIF.
- For best results, choose the highest-quality icon image inside the ICO source.
Online converter option
If you do not want to install software, an online converter can be convenient for quick one-off jobs. Look for a service that supports ICO input and AVIF output, preserves transparency, and does not heavily compress the image.
Summary
ICO to AVIF conversion is straightforward and useful for modern image optimization. For most users, XnConvert is the best balance of ease and control, while ImageMagick is ideal for automation and advanced workflows.
Note: This ico to avif conversion record is incomplete, must be verified, and may contain inaccuracies. Please vote below whether you found this information helpful or not.
ICO vs AVIF: format comparison
How the ICO and AVIF formats compare on the properties that matter most for this conversion.
| Property | .ICO Icon Image File | .AVIF AV1 Image File Format |
|---|---|---|
| Compression | Both | Lossy |
| Transparency | Yes | Yes |
| Animation | No | Yes |
| Layers | No | No |
| Color depth | Indexed (256 colors) | True color with alpha (32-bit) |
| Metadata support | Basic | Extensive |
| Opens in a web browser | Yes, natively | Yes, natively |
| Typical file size | Very small | Very small |
| Open standard | Partly open | Yes |
| Best used for | Icons | Photographs |
| Introduced | — | 2019 |
| Developer | Microsoft Corporation | Alliance for Open Media |
| MIME type | image/x-icon | image/avif |
Frequently asked questions
Is the ICO to AVIF converter free?
Yes, converting ICO to AVIF on 101convert.com is completely free. No registration, email address or installation is required.
How large can my ICO file be?
You can upload ICO files up to 2000 MB and convert up to 200 files at once in a single batch.
What happens to my uploaded files?
Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.
Do I need to install any software to convert ICO to AVIF?
No. The ICO to AVIF conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.
Did the conversion fail?
In most cases, the cause is an incorrect file format. Please upload a valid ICO file for this ICO to AVIF conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.