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BMP to ICO — Online Image Converter
Convert BMP to ICO online. Private, client-side — no uploadrequired. Fast batch converter.
Convert BMP to ICO
About BMP to ICO
Convert BMP to ICO. BMP is Windows' native raster format, commonly stored without compression. ICO bundles multiple resolutions of an icon in one container file. Conversion rasterizes one size, so start from the largest entry..
Why convert BMP to ICO?
- Larger files than lossy shares with ICO lossless quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
BMP vs ICO
| Animation | No | No |
|---|---|---|
| Transparency | Yes | Yes |
| Compression | lossless or uncompressed | lossless |
| Typical use | BMP is Windows' native raster format, commonly stored without compression. | ICO bundles multiple resolutions of an icon in one container file. |
When not to convert BMP to ICO
- Skip ICO for the smallest share: lossless output stays large, so prefer a lossy target when sending BMP files.
- Keep a master copy: repeated exports stack small losses, so archive BMP before batch ICO shares.
Limits
Starting point: BMP - BMP is Windows' native raster format, commonly stored without compression. Uncompressed files run large; prefer PNG for the same pixels. Conversion rasterizes one size, so start from the largest entry. Export ICO from BMP at matched dimensions; every pixel maps across, so large sources stay large.
How conversion works
Conversion runs entirely in your browser with the WASM image engine. Files never leave your device.
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FAQ
How do I convert BMP to ICO?
Drop your BMP file onto this page, adjust quality and optional dimensions, then click Convert. The result downloads as ICO instantly. All processing runs in your browser.
Will I lose quality converting BMP to ICO?
This format is lossless - converting preserves all pixel data at maximum quality.
How do you store my files?
We do not store any processed images. All conversion happens entirely in your browser using WebAssembly.