Can I generate a multi-size ICO?

Yes, and it is the default: 16, 32, 48, 64, 128, and 256 px bundled in one .ico file. You can also pick a single size.

Is this a real ICO file?

Yes — a real ICO container (ICONDIR plus one entry per size), with each size embedded as genuine PNG-compressed image data.

Does ICO output keep transparency?

Yes, for every embedded size, from the source PNG’s alpha channel.

What happens if my PNG isn’t square?

It is stretched to fit each square icon size. Start from a square image for the best result.

Are my files uploaded?

No. Conversion runs locally in your browser and does not upload your file to Looty Tools servers.

Image guides

How to Convert PNG to ICO in Your Browser

Converting a PNG to ICO produces a real Windows icon file, with a single size or a multi-size package. This guide covers the steps and what to know about square dimensions and transparency.

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Open PNG to ICO →

Step-by-step conversion

Open /tools/png-to-ico.
Choose a PNG file — the content is validated as real PNG data before conversion.
Pick a single icon size, or leave the default multi-size package (16–256 px) selected.
Select Convert & download.

Square dimensions and transparency

Each icon size is generated by resizing the full image to a square canvas, so a non-square source will be stretched to fit — start from a square PNG for best results. Each embedded size keeps the source’s alpha channel, since every entry is real PNG-compressed image data, not a renamed bitmap.

Privacy

Conversion runs locally in your browser. The file is not uploaded to Looty Tools servers for this workflow.

Convert PNG to ICO FAQ

Can I generate a multi-size ICO?: Yes, and it is the default: 16, 32, 48, 64, 128, and 256 px bundled in one .ico file. You can also pick a single size.
Is this a real ICO file?: Yes — a real ICO container (ICONDIR plus one entry per size), with each size embedded as genuine PNG-compressed image data.
Does ICO output keep transparency?: Yes, for every embedded size, from the source PNG’s alpha channel.
What happens if my PNG isn’t square?: It is stretched to fit each square icon size. Start from a square image for the best result.
Are my files uploaded?: No. Conversion runs locally in your browser and does not upload your file to Looty Tools servers.

Related guides

Open the tool

Jump into PNG to ICO when you are ready to process your files.

Open PNG to ICO →

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