What it is
The PNG to ICO Converter is a free online tool that turns PNG files into ICO, without installing anything and without uploading your image anywhere.
Why people convert this way
ICO is the icon format Windows uses, and it is what a desktop program, a shortcut or a classic favicon expects. Unlike a normal image, an ICO file is a container: it can hold the same icon at several sizes, and the system picks whichever one fits the place it is drawing.
How to use it
- Add your file, by dragging it in or picking it from your device.
- Wait a moment for the conversion to finish.
- Download the ICO, ready to use.
You can convert several files one after another in the same session.
Your file never leaves your device
The conversion runs entirely inside your browser, using the image engine the browser already has. Nothing is uploaded to a server, nothing is stored, and nobody else ever sees the file.
That matters more than it sounds for photographs, which carry metadata: the camera model, the date, and often the exact GPS coordinates where the picture was taken. Sending a personal photo to a conversion site hands all of that to a stranger. Here there is nothing to hand over, because nothing is sent.
It also means no queue, no daily cap and no account. The only real limit is your own device.
What changes in the result
Start from a square PNG, ideally 256 pixels or more, and keep the design simple. An icon is often read at 16 by 16 pixels, and a detailed logo becomes an unreadable smudge at that size. Transparency in the PNG is preserved.
Related: the image compressor to make a file lighter without changing format, and the image resizer to change its dimensions.