ICO Converter
A free ICO converter that turns any image into a multi-resolution Windows .ico — the format for app icons and favicons — instantly, in your browser.
Why a dedicated ICO converter
Most online converters upload your file, cap free use, or export a single flat image. An icon is different: it needs several resolutions inside one .ico so Windows and browsers can pick the right one. This converter does exactly that — locally, with no upload, no limit, and no watermark. Pick the sizes you want (16 through 256px) and download a proper multi-size icon.
Supported inputs
PNG, JPG/JPEG, WebP, GIF and BMP. Square, high-resolution artwork gives the crispest icons at small sizes.
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Frequently asked questions
What can this ICO converter take as input?
PNG, JPG, WebP, GIF and BMP images. It outputs a single multi-resolution .ico.
Is there a file limit?
No — it is unlimited and free, because the conversion runs on your device, not a server.
Do my files get uploaded?
Never. Everything is processed locally in your browser.