BMP to PNG converter

Convert BMP (Windows Bitmap) files to PNG (Portable Network Graphics) without uploading them.

Runs on your deviceFreeNo account

Convert BMP (Windows Bitmap) files to PNG (Portable Network Graphics) without uploading them.

About BMP to PNG

PNG is lossless like BMP but compressed, so you keep every pixel of screenshots and scans while the file shrinks a lot.

Metadata such as EXIF and GPS location is not copied, because the image is redrawn on a canvas.

	BMP	PNG
Compression	Usually uncompressed — very large files	Lossless; large for photos, great for graphics
Transparency	Rarely supported	Full alpha channel
Animation	No	No (APNG aside)
Where it opens	Windows-native; many websites and phones reject it	Opens everywhere

1
Drop one or more BMP files into the converter above (it is already set to PNG).
2
Adjust quality or background if offered.
3
Tap Convert and download the PNG files (or a ZIP).

Is converting BMP to PNG free?

Yes. No account, watermark, or daily limit.

Are my images uploaded?

No. Decoding and encoding run in this browser tab; the files never reach Omnipus servers.