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BMP to PNG — Online Image Converter
Convert BMP to PNG online. Private, client-side — no uploadrequired. Fast batch converter.
Convert BMP to PNG
About BMP to PNG
BMP usually stores pixels uncompressed, so PNG keeps every pixel while shrinking the file.
Why convert BMP to PNG?
- Larger files than lossy shares with PNG lossless quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
BMP vs PNG
| Animation | No | No |
|---|---|---|
| Transparency | Yes | Yes |
| Compression | lossless or uncompressed | lossless |
| Typical use | BMP is Windows' native raster format, commonly stored without compression. | PNG stores lossless images with transparency support. |
When not to convert BMP to PNG
- Skip PNG 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 PNG 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. Lossless quality means larger files than JPEG. Export PNG 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.
Related conversions
FAQ
How do I convert BMP to PNG?
Drop your BMP file onto this page, adjust quality and optional dimensions, then click Convert. The result downloads as PNG instantly. All processing runs in your browser.
Will I lose quality converting BMP to PNG?
This format is lossless - converting preserves all pixel data at maximum quality.
Is BMP to PNG lossless?
Yes; every pixel maps across and the file usually shrinks.
Does BMP to PNG keep transparency?
32-bit BMP alpha carries over; 24-bit files have none to keep.
How do you store my files?
We do not store any processed images. All conversion happens entirely in your browser using WebAssembly.