// 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.
// 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.
// WHY CONVERT
Converting BMP to ICO is useful when you need your image in a format suited for website favicons, Windows desktop application icons, Windows Explorer thumbnails, and shortcut icons. 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 BMP?
BMP is an uncompressed Windows format. It is universally supported on Windows but produces large files.
What is ICO?
ICO is the Windows icon container format used for application icons and browser favicons.
Will converting BMP to ICO lose quality?
Minimal change. The image is scaled to icon sizes and packaged in the ICO container. Start with a large BMP for best icon quality.
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.