Convert ICO to BMP Online
ICO is the Windows icon container format, while BMP is Microsoft's uncompressed bitmap format. This online converter turns your ICO files into BMP without installing software. Because BMP does not support transparency, transparent areas are filled with a background color you can choose (white by default).
Conversion route
ICO → BMP
Output Settings
BMP does not support transparency. Transparent pixels will be filled with this color.
About ICO to BMP Conversion
This free online converter transforms ICO images into BMP format directly in your browser. ICO is the Windows icon container format, while BMP is the uncompressed bitmap format from Microsoft. Whether you need broader compatibility, smaller file sizes, or different editing capabilities, switching from ICO to BMP takes just a few seconds and requires no software installation.
Because BMP does not support transparency, transparent areas in your ICO image are filled with a background color of your choice, white by default, so you can match the fill to wherever the image will be used. The BMP output is lossless, preserving your image as faithfully as the format allows without introducing any new compression artifacts of its own. The converter extracts the highest-resolution image inside the icon container, so you get the best-quality version available.
This conversion is popular with people who work with Windows application icons and website favicons, as well as anyone preparing images for legacy Windows applications and low-level image processing. ICO files are icon containers rather than general-purpose images, so moving to BMP is a sensible, practical step. The result is a clean file that is ready to share, upload, publish, or edit further in your favorite tools.
Your privacy is protected throughout the entire process. Conversion happens entirely inside your browser, so your files never leave your device and are never uploaded to any server. The tool is completely free, handles multiple files at once, and works on any device with a modern browser, making it simple to convert ICO to BMP whenever you need to.
How to Convert ICO to BMP
- 1
Upload your ICO file by dragging it into the box or clicking to browse. You can add multiple files at once.
- 2
Choose a background color for any transparent areas, since BMP does not support transparency.
- 3
Click Convert. Your ICO is converted right inside your browser.
- 4
Download your new BMP file when processing finishes.
Why Use This Converter
Simple conversion
Convert ICO to BMP with no software installation.
Private by design
Your files are converted entirely inside your browser and never leave your device.
Faithful output
BMP output keeps the source content as faithfully as the target format allows.
Smart background fill
Transparent areas are filled with a color you choose instead of turning black.
Frequently Asked Questions
Do I need to install software to convert ICO to BMP?
No. The conversion runs through the web interface and the result is available as a download.
How is my ICO file processed?
This direction converts your file entirely inside your browser. The file never leaves your device and is not uploaded to any server.
What happens to transparency when converting to BMP?
BMP has no alpha channel, so transparent pixels are filled with the background color you select in the settings (white by default).
Which size is used from my ICO file?
The converter extracts the highest-resolution image stored inside the icon container.
What's the maximum ICO file size?
You can upload files up to 50 MB for this direction.