Convert PNG to ICO

PNG to ICO: the quick version

PNG to ICO, done in your browser. Convert.diy converts your PNG files to ICO instantly — no uploads, no watermarks, no sign-up, and no limit on how many you convert. Because everything runs locally with WebAssembly, your files never touch a server.

PNG is a lossless format with full transparency support, ideal for logos, screenshots, and graphics with sharp edges or text. ICO is the Windows icon/favicon format. A single .ico bundles several sizes so browsers and Windows pick the right one.

People usually convert PNG to ICO for favicons and app icons. Drop your files below, pick your quality, and download — it takes seconds.

How to convert PNG to ICO

Add files

Drop your PNG file(s) into the box above, or click to browse. Add as many as you like.

Convert

Pick ICO and adjust quality, then click Convert. It runs instantly on your device.

Download

Download each ICO, or all of them as a single zip.

Frequently asked questions

Is the PNG to ICO converter free?

Yes — it’s completely free with no limits, no watermarks, and no account required. Convert as many PNG files as you want.

Are my files uploaded to a server?

No. Conversion happens entirely inside your browser using WebAssembly, so your PNG files never leave your device. Nothing is uploaded, stored, or seen by anyone.

Can I convert multiple PNG files at once?

Yes. Add as many files as you like and convert them in one batch, then download them together as a zip.

What sizes does the .ico contain?

The generated favicon bundles 16×16, 32×32, 48×48 and (when the source is large enough) 256×256 in a single .ico file, so browsers and Windows pick the right one.

Does it work on my phone?

Yes. Convert.diy works in any modern browser on iPhone, Android, Windows, Mac and Linux — no app to install.