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Image conversion · Free

PNG to ICO Favicon Generator

Create a real favicon ICO from a PNG logo. One download contains common icon sizes, with transparent pixels preserved and the artwork fitted without stretching.

Drop a PNG logo here

PNG · create one multi-resolution favicon ICO

Files never leave your device

  • Files stay on your device
  • No account or email
  • No watermarks
  • Free, no daily limits

Built with open-source software. Open-source notices

How to use the PNG to ICO Favicon converter

  1. Step 1

    Choose a PNG logo

    Add a local PNG with a square or rectangular mark. The original image is read on your device.

  2. Step 2

    Preview the included sizes

    The generator fits the artwork into 16, 32, 48, 64, 128, and 256 pixel square entries without stretching it.

  3. Step 3

    Download the ICO

    Save one .ico file that contains six 32-bit BMP-backed icon entries for browsers, shortcuts, and modern desktop systems.

A real multi-resolution icon file

An ICO file contains a directory of image entries rather than a PNG renamed with a different extension. This generator writes six size entries into the ICO and stores each rendered 32-bit BMP/DIB image inside the container.

The artwork is scaled to fit each square. Any unused area stays transparent, so a rectangular logo is not distorted to fill the icon.

Favicon use and limits

Add the downloaded favicon.ico to a website's public root or select it in an application that accepts ICO icons. All six entries use 32-bit BMP/DIB image data with an alpha channel and transparency mask.

This tool takes one PNG at a time, supports images within the browser's 100-megapixel limit, and creates the file locally. It does not convert SVG or animated image sources.

Questions about PNG to ICO Favicon

Are my files uploaded to a server?

No. This tool runs entirely in your browser: your files are read and converted on your own device and are never sent to ZuffSuite. The page downloads the conversion code it needs, then works on the files locally. Closing or reloading the tab discards everything.

Is this a real ICO file or a renamed PNG?

It is a real ICO container. The file has an ICO header and a directory with six separate 32-bit BMP-backed image entries at 16, 32, 48, 64, 128, and 256 pixels.

Does the favicon keep transparency?

Yes. The BMP/DIB entries keep alpha transparency. Rectangular artwork is centered on a transparent square instead of being stretched.

Can I add an SVG logo?

No. This generator accepts PNG only. SVG needs a separate safe-rendering workflow and is not supported by this page.

Which sizes are included?

The ICO contains entries at 16, 32, 48, 64, 128, and 256 pixels, covering common browser favicon and shortcut sizes.

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