PNG to ICO Converter
without uploading it.
Build a real Windows icon file from any image — 16, 32, 48, and 256px packed into one .ico, right in your browser.
Drop a PNG (or JPG), or click to browse
Drop a PNG (square works best) or click to browse.
Click "Convert to ICO".
Download the .ico file.
Why there's no upload step
Website favicons and Windows app icons still want the .ico format — and a proper .ico isn't just a renamed PNG, it's a container holding the same image at several sizes so every context (browser tab, taskbar, desktop) gets a crisp version. This tool builds that multi-resolution file in your browser: your image is center-cropped square and encoded at 16, 32, 48, and 256 pixels.
Is my image uploaded anywhere?+
No. The .ico file is assembled entirely in your browser.
What sizes go into the file?+
16, 32, 48, and 256 pixels — the sizes Windows and browsers actually look for. One file covers favicons, shortcuts, and high-DPI displays.
My image isn't square — what happens?+
It's center-cropped to a square first, since icons are always square. For control over the crop, crop the image yourself first.
Can I use this as a website favicon?+
Yes — name it favicon.ico and place it at your site root, or reference it with a <link rel="icon"> tag. For the full set of modern touch icons, use the Favicon Generator.