Convert BMP to ICO Online
Runs 100% in your browser — your files never leave your device.
Icons generated by older tooling often arrive as BMP. This converter re-encodes the bitmap as PNG and wraps it in a proper ICO container, scaling to the 256×256 icon limit when needed — all locally in your browser.
How it works
- 1
Drop your BMP file
Drag a BMP into the box, or click to browse. Nothing is uploaded.
- 2
Convert to ICO
The bitmap becomes a PNG inside a standard icon container.
- 3
Download the result
Save the ICO with one click — ready for favicons and shortcuts.
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