How to convert PNG to ICO
- Add your .PNG file - drop it in the box above or click to browse.
- Convert it to .ICO in a few seconds.
- Download your new .ICO file.
What to expect
- Start with a square image - if your PNG is not square, most tools will crop or stretch it to fit the ICO container.
- Transparency is preserved only at 32-bit color depth; choose 32-bit in your export settings to keep soft edges and partial transparency.
- A proper Windows icon embeds multiple resolutions (16, 32, 48, 256 px) in one file; a single-size ICO works but may look blurry when Windows scales it for different display contexts.
Frequently asked questions
Does ICO support transparency?
Yes, with 32-bit color depth. Select 32-bit in GIMP's export dialog or IrfanView's save options to preserve soft edges and partial transparency.
Can I convert a non-square PNG to ICO?
You can, but the result will be distorted or cropped. Crop your PNG to a square first, then convert.
Why does my favicon not update in the browser?
Browsers cache favicons aggressively. Hard-refresh with Ctrl+Shift+R, clear your browser cache, or open the favicon URL directly and refresh that tab.
What size should my ICO be for a website favicon?
A 32×32 or 48×48 ICO covers all practical cases; for a Windows desktop app, a multi-size ICO (16, 32, 48, 256 px) is recommended.
Programs that convert PNG: Diagram Designer · PhotoFiltre Studio · PolyTrans|CAD+DCC · FastStone Image Viewer · ACDSee Photo Manager · Adobe Photoshop · FastPictureViewer Professional · FormatFactory
