ICO Converter
Convert PNG to ICO
Drag & drop an image or click to select
Original
Converted
About This Tool
The PNG to ICO Converter creates ICO (icon) files from PNG images. ICO files are used for website favicons, Windows application icons, and desktop shortcuts.
Upload a PNG image and generate a multi-size ICO file containing all the sizes you need. Perfect for web developers and anyone creating Windows applications.
How It Works
How to Use This Converter
Creating ICO files is simple:
- Upload PNG - Select a square PNG image (recommended: 256x256 or larger).
- Select sizes - Choose which icon sizes to include (16, 32, 48, 64, 128, 256px).
- Generate ICO - Click convert to create your multi-size ICO file.
- Download - Get your favicon.ico ready to use.
Formula
Recommended ICO Sizes
For Websites (favicon.ico): 16x16 (browser tabs), 32x32 (taskbar, shortcuts), 48x48 (Windows desktop).
For Windows Applications: 16x16 (small icon), 32x32 (medium icon), 48x48 (large icon), 256x256 (extra large, Vista+).
Complete Set: 16, 24, 32, 48, 64, 128, 256.
Examples
Examples
Example 1: Website Favicon
- Input: logo.png (512x512)
- Output: favicon.ico (16, 32, 48px)
- File size: ~15 KB
Example 2: Windows App Icon
- Input: app-icon.png (256x256)
- Output: app.ico (16, 32, 48, 256px)
- File size: ~50 KB
Example 3: Desktop Shortcut
- Input: shortcut.png (128x128)
- Output: shortcut.ico (32, 48, 64px)
- File size: ~20 KB
Frequently Asked Questions
How do I convert an image to ICO format?
Upload a PNG, JPG, or SVG image. The tool converts it to ICO format with multiple sizes embedded: 16×16, 32×32, 48×48, and 256×256 pixels. ICO files are used for website favicons and Windows application icons.
What sizes should a favicon ICO file contain?
Essential: 16×16 (browser tab), 32×32 (taskbar), 48×48 (Windows desktop). Recommended: 64×64, 128×128, 256×256 for high-DPI displays. The tool generates a multi-size ICO file containing all standard sizes from a single source image.
What is the difference between ICO and PNG for favicons?
ICO can contain multiple sizes in one file. PNG is a single size. Modern browsers support both, but ICO has wider legacy support (IE, older browsers). Best practice: use ICO for /favicon.ico and PNG for Apple touch icons and modern browsers.
What image works best as a source for ICO conversion?
Use a square PNG with transparent background, minimum 256×256 pixels. Simple designs with bold shapes work best at small sizes. Avoid fine details that disappear at 16×16. Test your icon at the smallest size before finalizing.
How do I add a favicon to my website?
Place favicon.ico in your site root. Add to HTML head: <link rel="icon" href="/favicon.ico">. For PNG: <link rel="icon" type="image/png" href="/icon-32.png">. The tool generates both ICO and PNG versions.
Disclaimer
Disclaimer: This tool processes images entirely within your browser. No files are uploaded to any server, ensuring your privacy. Conversion results may vary depending on the source image quality and selected output settings. Always verify the output meets your requirements before use. We are not responsible for any data loss; please keep backups of your original files.
💡 Tips
Tips
- Start with a high-resolution PNG (256x256 or larger)
- Use a square image for best results
- Include 16x16 and 32x32 at minimum for favicons
- Test your favicon in different browsers
- Consider also creating apple-touch-icon.png for iOS