Why Convert PNG to ICO?
ICO is the standard format for website favicons and Windows application icons. If you have a logo or icon designed as a PNG, you’'ll need to convert it to ICO format to use it as a favicon in browsers.
| Feature | PNG | ICO |
|---|---|---|
| Purpose | General images | Favicons, app icons |
| Multiple sizes | No | Yes (embedded) |
| Transparency | Yes (alpha) | Yes |
| Browser support | As image | As favicon |
| File size | Varies | Small |
| Best for | Web images, graphics | Browser tabs, bookmarks |
ICO files can contain multiple icon sizes in a single file, making them perfect for favicons that need to look sharp at different resolutions.
How to Convert PNG to ICO
Create your favicon in just a few steps:
- Open the tool — Visit our free PNG to ICO converter
- Upload your PNG — Drag and drop your image or click to select it
- Convert — The tool generates an ICO file optimized for favicon use
- Download — Save the .ico file and add it to your website
The conversion runs entirely in your browser — no server processing or file uploads needed.
Tips for Best Results
- Start with a square image — Favicons work best when the source image is square (e.g., 512x512 or 256x256)
- Keep it simple — Favicons display at very small sizes (16x16 to 48x48), so simple designs work best
- Use transparency — PNG alpha transparency is preserved in the ICO output
- Starting from JPG? — Use our JPG to ICO converter to go directly from JPG to favicon format
Common Use Cases
- Creating website favicons from logo designs
- Generating Windows application icons
- Making bookmark icons for web apps
- Building icon sets for desktop software
Try It Now
Use our free PNG to ICO converter to create perfect favicons from your PNG images — no signup, no uploads, runs entirely in your browser.
Try the PNG to ICO — Free
No account needed · 100% private · Runs entirely in your browser