Convert BMP to PNG

Image tool

Free, private BMP-to-PNG conversion that runs entirely in your browser — no upload, no sign-up.

This tool runs entirely in your browser. Your files never leave your device — nothing is uploaded.

Choose a BMP image

Drop a BMP image hereWe'll convert it to PNGBrowse files

Convert to PNG

Add a BMP image to enable conversion.

Convert BMP to PNG free and instantly in your browser. Both formats are lossless, but PNG compresses its data while BMP stores it raw — so converting keeps every pixel identical while typically cutting the file size substantially. PNG is also far better supported on the web and in modern apps.

This converter redraws your BMP onto a PNG canvas right on your device, with nothing uploaded. It's the right choice when you want a smaller file without any loss in quality — for lossy-but-tiny output, use the BMP to JPG converter instead.

Frequently asked questions

Is BMP to PNG conversion lossless?

Yes. Both BMP and PNG store exact pixel data, so the converted PNG is visually identical to the original — every pixel is preserved. Only the file size changes.

Why is PNG smaller than BMP?

BMP stores pixels essentially raw, while PNG applies lossless compression. Same image, same quality, but the PNG is usually a fraction of the BMP's size — especially for screenshots and graphics.

Is the tool free and private?

Yes. The conversion runs entirely in your browser using the Canvas API — the image never leaves your device, and there's no sign-up or usage limit.