PNG to ICO
Choose one PNG within the limits, select a square icon size, and download an ICO file.
A QUICK WALKTHROUGH
How to use this tool
- Choose one PNG up to 10 MB and within the image-dimension limits.
- Choose a square icon size from 16 to 256 pixels.
- Download the ICO file containing the resized PNG image.
One PNG-backed icon entry
The output is a valid ICO container with one 16–256 px square entry. Its image payload is PNG data; the input is drawn onto a square canvas, so non-square images are fitted to the chosen square dimensions.
Input limits and local processing
Accepts one PNG up to 10 MB, no side over 5,000 px, and no more than 25 megapixels. Conversion happens in this browser; the source file is not uploaded.
GOOD TO KNOW
Common questions
Is the download a real ICO file?
Yes. It contains an ICO header and directory entry whose image data is PNG.
Does it preserve the original dimensions?
No. The chosen square size is used for the icon image.
Is my PNG uploaded?
No. Conversion runs locally in your browser.