What is an AVIF file?

AVIF (AV1 Image File Format) is a modern, highly efficient image format derived from the AV1 video codec. It offers superior compression to JPEG and WebP at comparable quality, with support for transparency and HDR.

Does AVIF support transparency when converting to ICO?

Yes. AVIF supports alpha-channel transparency, and the converter preserves transparent areas in all ICO sizes. Use a transparent AVIF for clean icon edges.

What ICO sizes are generated from AVIF?

The generated ICO contains 16×16, 32×32, 48×48, 64×64, 128×128, and 256×256 pixels packed into a single .ico file.

Can I use the ICO as a website favicon?

Yes. Place favicon.ico in your site root and add to your HTML . All browsers will recognise it automatically.

AVIF to ICO

Convert AVIF images to ICO icon format

Drag and drop your file here

or click to browse files • Max 50MB

Tips:

•Use PNG source files with transparency — the alpha channel is preserved in the ICO output
•A larger source image (512×512 or higher) produces sharper icons at every ICO size
•ICO files bundle multiple sizes (16×16 to 256×256) so Windows and browsers pick the best fit automatically
•For favicons, add <link rel="icon" href="favicon.ico"> to your HTML <head>

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