Convert images, documents, video and audio in your browser. Your files stay on your device.
Convert ICO images to BMP without installing anything and without uploading them to a server. BMP is a good fit for compatibility with older Windows software and devices that require it.
Drag one or more ICO files onto the dashed area, or tap it to pick them from your device.
BMP is already selected; the options hold the settings that matter for this conversion.
Press “Convert to BMP”. When it’s done, download the files one by one or all together in a ZIP archive.
Good to know. In the options you can also resize, rotate or turn all the images black and white in one go.
Source format
ICO (Windows icon)
A container that holds the same icon in several sizes, from 16 to 256 pixels: Windows and browsers pick the one that best fits the available space. It’s still the most compatible format for a website’s favicon.
Target format
BMP (Windows Bitmap)
The historic Windows format: it stores pixels almost always without any compression. It’s simple and faithful, but a Full HD image easily exceeds 6 MB. Scanners, old software and some industrial machines still produce it.
No. The conversion from ICO to BMP happens entirely in your browser, using your device’s computing power. Files aren’t sent or stored anywhere: when you close the page they’re gone from memory too.
Up to 100 files at a time. There’s no fixed size limit: it depends on your device’s memory. On smartphones it’s best to work in smaller batches with heavy files such as videos.
Yes, with up-to-date Safari, Chrome, Firefox, Edge and Samsung Internet. On phones, converted files end up in the Downloads folder or the Files app.
Only to open the page (and, the first time, to download the components needed for that type of file). After that the conversion keeps working even if the connection drops.