ICO BMP
Free online converter

Convert ICO to BMP

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ICO to BMP converterFREE
Drop a .ICO file here
or pick one - we convert it to .BMP and give you the file to download

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert ICO to BMP

  1. Add your .ICO file - drop it in the box above or click to browse.
  2. Convert it to .BMP in a few seconds.
  3. Download your new .BMP file.

What to expect

  • ICO is a container holding the same icon at several sizes; converting to BMP exports only one size - typically the largest.
  • BMP does not support transparency; any transparent areas in the icon become a solid color, usually white or black.
  • BMP is uncompressed, so a 256×256 BMP is roughly 256 KB - much larger than the source .ico.

Frequently asked questions

Will the converted BMP keep the icon's transparency?
No - standard BMP has no alpha channel. Transparent pixels are filled with a solid background color. Export to PNG instead if you need transparency.
How do I control which icon size gets exported?
In GIMP a size-picker dialog appears when you open the ICO. In IrfanView the largest size loads by default; in ImageMagick append [0], [1], etc. to select a specific frame.
Can I batch-convert many ICO files to BMP at once?
Yes - IrfanView's batch conversion tool (File > Batch Conversion/Rename) or XnConvert handle folders of ICO files and output BMP in one pass.
Is ICO to BMP a common conversion?
Not really - the more typical workflow is the reverse, creating ICO files from BMP or PNG sources. ICO to BMP comes up mainly when legacy software or an embedded system requires a plain bitmap.
Learn about the formats: .ICO · .BMP