Convert BMP to ICO right in your browser
Free and unlimited, and nothing is uploaded: it all runs in your own browser. Open Image Converter
What changes when you convert BMP to ICO
- Both formats are lossless: every pixel (and every sample) survives the trip.
- ICO icon supports transparency, but the source has none to keep — nothing is invented.
- Encoding writes PNG-compressed entries (valid for every size up to 256px, per the Vista+ ICO spec).
How to convert BMP to ICO
- Add your BMP file — drag it onto the page or choose it. It stays on your device.
- Pick ICO as the output format.
- Press convert and download the result — individually or as one ZIP.
Questions
How do I convert BMP to ICO for free?
Add your BMP file on this site, choose ICO, and press convert. The whole conversion runs in your own browser — nothing is uploaded — and the ICO file downloads straight from your device.
Will converting BMP to ICO lose quality?
Both formats are lossless: every pixel (and every sample) survives the trip.
Does ICO keep everything BMP supports?
Yes within the format’s own limits — pixels, timing and structure survive the conversion.