Convert ICO to PNG
Your files are processed on your device. We never upload them.
How to convert ICO to PNG
- 01A ▸Choose your ICO files, or drop them on the page.
- 02A ▸Keep Every size, or choose Largest only.
- 03A ▸Select Convert to PNG, then download each PNG, or all of them as a zip.
About ICO to PNG
Where ICO files come from
ICO files are Windows icons and website favicons. Design tools, documents, and slide software can't open them, and a favicon.ico is often the only copy of a site's logo. PNG keeps the icon's transparency and opens everywhere.
What changes
- Each size inside the icon becomes a separate PNG, largest first.
- Transparency is kept, from either real transparency or an old icon's mask.
- Pixels are kept exactly; nothing is resized or smoothed.
- When one size is stored at several colour depths, only the richest is kept.
Measured
Our test icon (a 5 KB ICO with 16, 32, 48, and 256 pixel sizes) converted in Chrome on a laptop. Phone timings are still to be measured.
| ICO file | 5 KB |
|---|---|
| Four PNGs, together | 7 KB (256 pixels, 3 KB) |
| Time in Chrome (laptop) | 0.1 seconds |
In your browser
The icon file is read in plain JavaScript, the same in every browser. Sizes stored as PNG are decoded by the browser; old-style bitmap sizes are decoded by our own code. Nothing extra is downloaded.
Limits
- CUR cursor files and Mac ICNS icons aren't supported.
- An icon is only as large as its biggest size; enlarging a 32-pixel icon won't add detail.
Other options
- ICO to JPG: one JPG on a solid background, for documents and forms.
- SVG to ICO: make a new icon from an SVG logo.
- PNG to ICO: the reverse, to make an icon from a PNG.
Questions
Why do I get several PNGs from one icon?
An ICO file holds the same icon at several sizes, such as 16, 32, 48, and 256 pixels. Each becomes its own PNG, named with its size. Choose Largest only to get just the biggest.
Are my files uploaded?
No. Your files are processed on your device. We never upload them.
Does it keep transparency?
Yes. Modern icons store real transparency, and older ones use a mask; both become see-through PNG pixels.
Does it work with old Windows icons?
Yes. Icons from any Windows version work, whether each size is stored as a PNG or as an old-style bitmap with 2, 16, 256, or millions of colours.
What if an icon has the same size twice?
Icons often hold a size at several colour depths. You get the one with the most colours.