PNG to ICO Converter

Convert your PNG images into multi-size Windows ICO icon files, right in your browser. Nothing is uploaded to any server — all processing happens locally on your device.

Drag and drop a PNG file here

or

How to Convert PNG to ICO in 3 Steps

Drop your PNG file into the box above, or click "Choose PNG File". Files stay on your device.
Tick the icon sizes you need. A website favicon normally needs 16x16 and 32x32; Windows apps usually need 48x48, 128x128 or 256x256 as well.
Click "Convert to ICO", then "Download ICO". The multi-size ICO file is generated in your browser in a second, with nothing uploaded to any server.

This converter creates a standard multi-resolution ICO container, so one downloaded file works as a favicon, a Windows shortcut icon, and an application icon at the same time. No sign-up, no watermark, no file size limit beyond your device memory.

Frequently Asked Questions

Is my PNG image uploaded to a server?

No. This tool runs entirely in your web browser using JavaScript and the HTML5 Canvas API. Your image file never leaves your device.

What do the different ICO sizes mean?

16x16px is used for browser tabs and address bar favicons. 32x32px is the standard favicon and taskbar icon size. 48x48px is commonly used for Windows desktop shortcuts. 64x64px suits larger shortcut icons and some app tiles. 128x128px is used for high-resolution desktop icons and app stores. 256x256px provides the sharpest quality for modern high-DPI displays and Windows Explorer large icon views.

Why did I get an error when uploading my file?

This tool only accepts PNG images. If you upload a JPG, GIF, WEBP, or other file type, you'll see a friendly error message asking you to upload a valid PNG file instead.

Is this tool really free to use?

Yes, this PNG to ICO converter is completely free with no sign-up, no watermark, and no usage limits.