This free online ICO to AVIF converter lets you change ico icon files into avif image format right inside your web browser. There is nothing to install, no account to create and no watermark added to your result.
Unlike most converters, EverythingConverter never uploads your files to a server. The entire ICO to AVIF conversion happens locally on your own device, which means your documents and media stay completely private and the process works even on slow connections.
How to convert ICO to AVIF
- Click the upload area above or drag and drop your ICO file into it. You can also browse and pick a file from your device.
- EverythingConverter reads the file directly in your browser and starts to convert it to AVIF automatically. Nothing is sent to any server.
- When the conversion finishes, your new AVIF file downloads right away. You can convert another file at any time, completely free.
ICO and AVIF explained
What is a ICO file?
ICO is the icon format used by Windows and website favicons. A single ICO file can hold several sizes of the same image so the system can pick the right one.
What is a AVIF file?
AVIF is a next generation image format based on the AV1 video codec. It offers excellent compression and quality, often beating WebP and JPG, and is increasingly supported across modern browsers.
Convert ICO to AVIF on any device
You can convert ICO to AVIF on Windows, Mac, Linux, Chromebook, Android and iPhone, straight from Chrome, Safari, Edge or Firefox. There is no app to install and no account to create. Because the conversion runs on your own device, it also works offline once the page has loaded, and you can convert as many files as you want.
Frequently asked questions
How do I convert ICO to AVIF for free?
Upload your ICO file to the converter above and it will be turned into a AVIF file automatically. The tool is completely free, with no limits on how many files you can convert and no watermark on the result.
Is it safe to convert ICO to AVIF here?
Yes. EverythingConverter converts your ICO file entirely inside your browser. Your file is never uploaded to a server, so no one but you ever has access to it. This makes it one of the most private ways to convert ICO to AVIF online.
Can I convert multiple ICO files at once?
Yes. You can drop or select as many ICO files as you like and they are all converted to AVIF in one batch, then bundled into a single ZIP download. It is the fastest way to bulk convert ICO to AVIF.
Do I need to install any software?
No. The ICO to AVIF converter runs in any modern web browser on Windows, macOS, Linux, Android and iOS. There is nothing to download or install.
Is there a file size limit?
Because the conversion runs on your own device, the practical limit depends on your computer's memory rather than a server quota. Most everyday ICO files convert instantly, and there is no artificial cap.
How long does it take to convert ICO to AVIF?
For typical files it is almost instant, since the conversion happens locally with no upload or download wait. Large media files take a little longer because your device does the encoding, but there is never a queue.
What is the difference between ICO and AVIF?
ICO is the icon format used by Windows and website favicons. A single ICO file can hold several sizes of the same image so the system can pick the right one. AVIF is a next generation image format based on the AV1 video codec. It offers excellent compression and quality, often beating WebP and JPG, and is increasingly supported across modern browsers. Converting ICO to AVIF gives you the strengths of the AVIF format for your specific use case.