// ABOUT ICO
ICO is the standard Windows icon container format used for favicons and application icons. A single ICO file can embed multiple resolutions (16x16, 32x32, 48x48, 256x256) so the operating system or browser can select the most appropriate size. ICO is the required format for the classic favicon.ico file that browsers request from every website.
// ABOUT BMP
BMP is an uncompressed raster format developed by Microsoft. It stores raw pixel data with no compression whatsoever, resulting in very large files but universal compatibility across Windows applications. BMP is most useful when a downstream tool or legacy application requires raw, uncompressed pixel data.
// WHY CONVERT
Converting ICO to BMP is useful when you need your image in a format suited for legacy Windows applications, game engines requiring uncompressed textures, hardware tools, and scenarios where decompression overhead must be zero. Since BMP stores raw pixel data, the resulting file will be significantly larger than the ICO source, but no quality is lost. Image Toolz runs the entire conversion directly in your browser. Nothing is uploaded to any server — your files remain completely private on your device. The tool handles images up to 200 MB and most conversions complete in under a second.
// FAQ
What is ICO?
ICO is the Windows icon container format used for application icons and browser favicons.
What is BMP?
BMP is an uncompressed Windows format with universal Windows application compatibility.
Will converting ICO to BMP lose quality?
No. The BMP is a lossless copy of the icon artwork extracted from the ICO.
Is it safe to convert my files here?
Yes. All conversion runs entirely in your browser. Your images are never uploaded to any server and nothing leaves your device.