ICO to AVIF Converter

Converts icon images to AVIF for the smallest possible files with transparency.

image

Drag & drop image files here, or browse

Drop your ICO files here

How It Works

  1. Add your ICO files Drag and drop ICO images onto the page, or click to pick them from your file browser.
  2. Check the output format AVIF is already selected as the output. You can change it if you need a different format.
  3. Hit convert Click the convert button. Everything runs locally in your browser, nothing gets uploaded.
  4. Download your files Grab your AVIF files one at a time or download them all as a ZIP.

Features

Supported Formats

FAQ

Why convert ICO to AVIF?

Converts icon images to AVIF for the smallest possible files with transparency.

How do I convert ICO to AVIF?

Drop your ICO image files onto this page, make sure the output format is set to AVIF, and click Convert. Everything runs in your browser and nothing is uploaded.

What is ICO (Windows Icon)?

ICO is the icon format for website favicons and Windows app icons. It supports transparency and is widely recognized by browsers and Windows.

What is AVIF (AV1 Image File Format)?

AVIF is based on the AV1 video codec and compresses better than both JPG and WebP. It supports HDR, wide color gamut, and transparency, but not every app and browser can open it yet.

Will converting ICO to AVIF affect quality?

The converter uses the highest resolution stored in the ICO file. Output quality depends on what was saved in the icon originally.

Are my files private?

Yes. Your images are processed entirely in your browser using WebAssembly. Nothing gets uploaded to any server. Your files stay on your device the whole time.