ICO to BMP Converter - free, no upload

Convert ICO to BMP

ICO and BMP are close relatives - the icon format grew out of the bitmap one - so this is close to unwrapping. What you get is the largest image inside, stored raw.

Drop ICO file(s) to start

or click to browse

What is ICO?

Windows icons, and a container rather than an image - one file holds the same icon at several sizes, so Windows can pick the right one for a title bar or a desktop. It tops out at 256x256 and supports transparency, which is what stops an icon looking like a sticker.

What is BMP?

The Windows bitmap, which stores pixels raw with no compression worth mentioning. Files are enormous. It survives because it's trivial to read - if you're writing an image loader from scratch or feeding an embedded display, BMP is the format that needs no library.

Your files never leave your device · no magic required