Convert PNG to ICO
The output format is already set to ICO: drop in a PNG and choose the sizes to build a Windows icon or a favicon.
Drag your images hereTap to choose your files
or click to choose · paste with Ctrl+VJPG, PNG, WebP, GIF, BMP, AVIF, HEIC, TIFF, SVG, ICO · up to 50 MB each
Processed on your device: nothing is uploaded
Options
Images
Result
The result is much larger than the original
How to use it
- Choose the format you want to convert to: JPG, PNG, WebP, AVIF, GIF, BMP, or ICO.
- Drag your images into the box or select them from your device. You can add several at once.
- Adjust the quality, background color, or size if you need to. The result updates on its own.
- Download each image separately or all of them together in a ZIP.
Frequently asked questions
What is an ICO file for?
It is the format used for Windows icons and website favicons. It can hold several sizes in a single file, so the icon looks good at both 16 px and 256 px.
Which sizes should I include?
For a favicon, 16, 32, and 48 px work well; for Windows shortcuts, add 128 and 256. The tool comes with 16, 32, 48, and 256 checked, and you can adjust them.
Should I start from a square PNG?
Yes. Use a square image with the subject centered, ideally on a transparent background. The icon looks neater if the source PNG already has that shape.
Create an icon from a PNG
The ICO format bundles several sizes of the same image in one file, which Windows and browsers use to show sharp icons. Converting a PNG to ICO is the simplest way to make a favicon or the icon of a desktop app.
How to get a good icon
Start from a square PNG, centered and with transparency if you need it, and check the sizes you want to include. A typical favicon has 16, 32, and 48 px. If you need to reduce the image size first, try PNG to WebP, or go back to the image converter to change format.
Updated on September 29, 2026