PNG to ICO Converter
Create a crisp multi-size .ico file from any image for Windows apps, shortcuts and website favicons, with a macOS .icns export as a bonus.
NewFreeNo uploadMulti-size
1Add your image
2Icon sizes
3Style
Fit
How to use PNG to ICO
- 1
Add your image
Drop a PNG, JPG, WEBP or SVG. A square image with a transparent background gives the best result.
- 2
Choose the sizes
Pick any sizes from 16 to 256 px, or use the Favicon or Windows app presets.
- 3
Style and download
Add padding, rounded corners or a background colour, then download the .ico, a macOS .icns or the PNGs.
What is an ICO file?
ICO is the icon format used by Windows for apps, shortcuts and folders, and by browsers for favicon.ico. Unlike a PNG, one ICO file can contain several sizes of the same icon, so Windows and browsers can pick the sharpest version for each place: 16 px in a browser tab, 32 px on the taskbar and 256 px on a high-resolution desktop.
Features
- Multi-size icons: 16, 20, 24, 32, 40, 48, 64, 96, 128 and 256 px in one file.
- Presets: Favicon (16, 32, 48) and Windows app (16 to 256).
- Best compatibility: small sizes are stored as classic 32-bit BMP with alpha, large sizes as PNG, exactly like icons made by professional tools.
- Sharp small sizes: high-quality step-down scaling and optional sharpening keep 16 and 32 px icons crisp.
- Styling: fit or fill the square, add padding, round the corners or add a background colour.
- macOS .icns: export a 16 to 1024 px icon set for Mac apps.
Tips for great icons
- Start from a square image of at least 512 px, or an SVG, so every size is sharp.
- Simplify the design for small sizes: thin lines and small text disappear at 16 px.
- For a website, put
favicon.icoin the root of your site. For a complete set of web and app icons, use our App Icon Generator or Favicon Generator.
Frequently asked questions
How do I convert PNG to ICO?
Drop your PNG, choose the sizes you need and press Download .ico. All sizes are packed into one icon file.
Which sizes should an ICO file contain?
For a favicon, 16, 32 and 48 px. For a Windows app or shortcut, 16, 24, 32, 48, 64, 128 and 256 px.
Does the ICO keep transparency?
Yes. Icons are saved as 32-bit images with full alpha transparency.
Can I convert SVG to ICO?
Yes. SVG files are drawn as vectors at each size, which gives very sharp icons.
Can I make a macOS icon too?
Yes. The .icns button creates a macOS icon file with sizes from 16 to 1024 px.
Is my image uploaded?
No. The icon is created in your browser and never leaves your device.