PNG is a common format worth converting when a tool like this doesn’t accept it directly. Converting to ICO happens instantly, right in your browser. The output is a single-size icon file — ideal for favicons or small app icons, not a general photo format.
PNGs are common from screenshots, design exports, and downloaded graphics — great for editing, but often larger and less convenient than needed for a final upload. Converting to ICO gets you a properly formatted icon file for a website or app — done instantly, for free, without installing anything or creating an account.
Quick verdict: Pick PNG for logos, screenshots, graphics needing transparency, ICO for favicons, Windows application icons.
.png.icoimage/pngimage/x-iconConverting your PNG file to ICO happens in three steps, entirely on your device: your browser reads the PNG file into memory, decodes and re-encodes it as ICO using built-in browser technology (Canvas and WebAssembly), and hands you the finished file as a direct download.
At no point does the file get sent to a server. There’s no upload step to intercept, no account that could be breached, and nothing stored after you close the tab — the conversion simply couldn’t leak your file even if something went wrong, because it never left your browser in the first place.
The output is a single-size icon file — ideal for favicons or small app icons, not a general photo format.
We decode the original PNG data and re-encode it at high quality, so any difference is minimal to the eye for normal use.
Drop your PNG file into the box above and press Convert — the ICO download is ready in seconds, with no account, no watermark, and no limit on how many files you convert.
Yes — drop in as many files as you need, convert them all in one go, and download everything together as a single ZIP instead of clicking download on each file individually.