Convert ICO to BMP Online
ICO files typically contain small app or favicon icons, often bundling several sizes in one file. Converting to BMP happens instantly, right in your browser. BMP stores pixels uncompressed — large files, but opens in essentially anything, including very old software.
Why Convert ICO to BMP
ICO files are purpose-built for icons, and stop being useful the moment you need that image for anything else. Converting to BMP gets you guaranteed compatibility with very old or specialized software — done instantly, for free, without installing anything or creating an account.
ICO vs BMP: Technical Specs
Quick verdict: Pick ICO for favicons, Windows application icons, BMP for legacy Windows applications.
.ico.bmpimage/x-iconimage/bmpHow It Works & Privacy Guarantee
Converting your ICO file to BMP happens in three steps, entirely on your device: your browser reads the ICO file into memory, decodes and re-encodes it as BMP 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.
ICO to BMP FAQ
What should I know about converting to BMP?
BMP stores pixels uncompressed — large files, but opens in essentially anything, including very old software.
What is ICO, and why would I need to convert it?
ICO files typically contain small app or favicon icons, often bundling several sizes in one file.
Will converting ICO to BMP reduce quality?
We decode the original ICO data and re-encode it at high quality, so any difference is minimal to the eye for normal use.
How do I convert ICO to BMP for free?
Drop your ICO file into the box above and press Convert — the BMP download is ready in seconds, with no account, no watermark, and no limit on how many files you convert.
Can I convert multiple ICO files to BMP at once?
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.