ICO
.ico
The icon format used by Windows and by website favicons. A single file can hold several sizes at once.
More about ICO →Drop your ICO image in and download it as BMP within seconds. There is no account to create and nothing to install, and you can convert as many files as you like.
Drag your files here
or click to pick them from your device
Click the upload area or drag your ICO file straight onto it. You can drop several at once if you need to convert them all.
The output format is already set to BMP. If you added several files and want a different format for each, switch to the "A format for each file" option.
Conversion runs on your own device, so it starts instantly and never depends on your internet speed or on a queue at some server.
Hit Download and save your new BMP file. If you converted several, you can grab them all together in a ZIP.
One important detail: ICO supports transparent backgrounds and BMP does not. Transparent areas will be filled with white, so keep that in mind if your image is a cut-out logo.
.ico
The icon format used by Windows and by website favicons. A single file can hold several sizes at once.
More about ICO →.bmp
An uncompressed Windows bitmap. It keeps full quality but produces very heavy files.
More about BMP →Other conversions people usually need next.
Yes, entirely. No accounts, no daily file limit and no watermarks on the result. The site is funded by the ads on the page.
No. The ICO to BMP conversion runs inside your browser, on your own device. The file never travels across the internet, so nobody can see it and there is no copy left to delete afterwards.
No. BMP stores the data without loss, so the result keeps exactly the detail of the original.
BMP does not support transparency. Transparent areas in your ICO are filled with white. If you need to keep the cut-out, convert to PNG or WEBP instead of BMP.
Yes. Drop in as many as you like and they will be converted one after another. When they finish you can download them individually or all together in a ZIP.
Yes, on Android and iPhone, with no app to install. Just open this page in your phone browser.