PNG to ICO Converter with Multi-Size Output
Overview
Windows applications need .ico files that contain all standard icon sizes: 16x16 for small icons in taskbars, 32x32 for normal view, 48x48 for large icon view, and optionally 256x256 for high-DPI displays. Upload one PNG and the tool packages all sizes into a single .ico file.
How to Use This Tool
Upload a square PNG (minimum 256x256px recommended). Check the sizes you want included in the output ICO. Click Generate. Download the .ico file that contains all selected sizes.
Ready to get started? It's free, no registration required, and your files never leave your device.
PDF Tool →Frequently Asked Questions
What image size should I use as the source for ICO generation?
Use a 256x256px or larger square PNG. The tool downscales to the selected sizes. Starting large gives the algorithm enough data to produce sharp 16x16 thumbnails.
Can I use a JPG image to create an ICO?
Most ICO generators require PNG input because ICO supports transparency which PNG provides and JPG does not. Convert your JPG to PNG first using the JPG to PNG tool, then generate the ICO.
Is .ico required for all websites?
No. Modern sites can use PNG or SVG favicons via link tags. .ico is still useful for universal compatibility including IE11, Bing webmaster tools, and browser bookmark imports which look for favicon.ico by convention.