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PNG to ICO Converter

Create favicon .ico files from any image —choose sizes and download instantly. No upload required, everything runs in your browser.

Image Tools Runs locally No data sent
ICO favicon PNG convert
Source Image
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Drop image here
or click to browse
PNG · JPG · WebP · GIF · BMP
Sizes to Include
Tip: 16, 32, and 48 cover most browser and OS favicon needs.

What is PNG to ICO Converter?

This tool converts PNG, JPG, WebP, or any browser-readable image into a multi-size .ico file suitable for use as a website favicon. The ICO binary is assembled directly in JavaScript using the Canvas API —no server, no upload, no third-party library.

How to Use PNG to ICO Converter

  1. Drop or select your source image (PNG, JPG, or WebP recommended).
  2. Check the sizes you want included —16×16, 32×32, and 48×48 cover most needs.
  3. Click Generate .ico to assemble the multi-size ICO binary.
  4. Download favicon.ico and place it at the root of your website.

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Understand ICO Favicon Files ▾
Example
Input A 512×512 PNG logo with transparent background, sizes 16, 32, 48 selected.
Output A single favicon.ico containing all three PNG-encoded layers, transparency preserved in every size.
Common Use Cases
  • Generate favicon.ico for a new website or web app
  • Rebuild a favicon from an updated logo PNG
  • Create multi-size ICOs for Windows desktop application icons
  • Package a brand icon for browser extension manifests
Frequently Asked Questions
Is my image uploaded to a server?

No. Everything runs entirely in your browser using the Canvas API. Your image never leaves your device —there is no server upload at any stage.

Which sizes should I include in a favicon ICO file?

For a modern favicon, 16×16 and 32×32 are the minimum. Including 48×48 ensures sharp display in Windows taskbars. Adding 64×64 and higher covers high-DPI displays and application icons. Most sites include 16, 32, and 48 at minimum.

Does the ICO file support transparency?

Yes. Each size inside the ICO is stored as a PNG with full alpha channel support. Transparent backgrounds in your source image are preserved at every size.

Is the ICO format still supported across browsers?

Yes. ICO remains the most universally supported favicon format. All major browsers —Chrome, Firefox, Safari, and Edge —load favicon.ico correctly. It is the safest choice for the root-level favicon.ico file.