PNG to ICO Converter
Build a multi-size Windows icon or favicon from PNG artwork.
Converted in your browser. Your file never leaves your device.
Drop your PNG files here
or drag and drop · 20 MB per file
How to convert PNG to ICO
- Choose one or more PNG files.
- Open Conversion settings to choose the available output options.
- Download your ICO result and review the conversion report.
Where this file comes from
PNG logos and square app artwork are common starting points for Windows icons and favicons.
What changes in the conversion
One ICO contains your chosen sizes. Smaller entries use 32-bit bitmap data with transparency masks; 256-pixel entries use PNG. Padding keeps the whole image; crop fills the square. Small originals may look soft when enlarged.
Size limits and browser notes
- Accepts .png files up to 20 MB each.
- You can convert several files at once; they download together as one ZIP.
- Everything runs in your browser, so very large files depend on your device's memory.
Uses browser image support. Very large files may exceed available memory; try smaller dimensions.
FAQ
Which sizes should I choose?
The default includes 16, 32, 48 and 256 pixels for small browser icons through large Windows icons. A square source at least 256 pixels wide gives the best starting point.
Is the file uploaded?
No. The conversion runs in your browser. Libraries load from this site; file contents stay on your device.
What information is lost?
One ICO contains your chosen sizes. Smaller entries use 32-bit bitmap data with transparency masks; 256-pixel entries use PNG. Padding keeps the whole image; crop fills the square. Small originals may look soft when enlarged.
Related tools
See every tool on the SVG & Icon Converter page.