Tool
PNG to ICO Converter
Convert PNG images to multi-size ICO favicon files.
Image Tools
What this tool does
Upload a PNG and download a proper ICO file containing 16×16, 32×32, and 48×48 embedded PNG images.
How to use
- Upload a square or high-resolution PNG.
- Click Process image to build the ICO.
- Download the .ico file for use as a favicon.
Examples
App icon to favicon
Input: 256×256 PNG logo
Output: favicon.ico with 16, 32, and 48 px sizes
Windows and browsers accept ICO files with multiple embedded sizes.
Common use cases
- Create website favicons
- Generate Windows app icons
- Convert logo PNGs for browser tabs
FAQ
Is this a real ICO file?
Yes. The output is a standard ICO container with embedded PNG images.
What sizes are included?
16×16, 32×32, and 48×48 pixels.
Should I use a square source?
Square PNGs produce the best favicon results.
Will ICO work in all browsers?
Modern browsers prefer PNG favicons; ICO remains useful for legacy Windows shortcuts.
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Last reviewed: 2026-05-23