Convert PNG to BMP Online — Free
Runs 100% in your browser — your files never leave your device.
When a legacy tool or embedded device insists on BMP, feed it BMP. The PNG is decoded and written out as a standard 24-bit bitmap — note that transparency is flattened, since BMP has no alpha channel. Everything runs locally.
How it works
- 1
Drop your PNG file
Drag a PNG into the box, or click to browse. Nothing is uploaded.
- 2
Convert to BMP
The image is decoded and written as an uncompressed bitmap; transparency flattens.
- 3
Download the result
Save the BMP with one click, or drop another file to convert it.
About this tool
Converting PNG to BMP
A PNG file png stores every pixel losslessly and supports full transparency, which makes it the standard for screenshots, logos, and graphics — at the cost of larger files for photographs.. BMP bmp stores pixels essentially uncompressed — enormous files, zero quality loss, and roots deep in legacy windows software that only accepts it.. Converting moves your image from the first set of trade-offs to the second: expect the file to grow substantially, transparency is lost, because BMP cannot carry it, and pixel data is re-mapped to the target format exactly.
What to check after converting
Open the result and check the two things conversion can change: transparency and size. Your PNG source supported transparency, which BMP cannot carry — transparent areas typically fill with white or black, so design around a solid background if that matters. Your original file stays untouched on your device either way, and the download is a brand-new file.
Frequently asked questions
Is this conversion lossless?
Yes — both PNG and BMP store pixels losslessly, so the conversion moves your image between formats without touching a single value. The file size changes; the pixels do not.
Is my image uploaded anywhere?
No — the conversion runs entirely in your browser. The image is processed on your device and never sent to any server, which you can verify by disconnecting after the page loads.
Why convert PNG to BMP instead of the other way around?
The direction follows what the destination needs: legacy Windows compatibility versus graphics, screenshots, and anything needing transparency. Converting back is always available — but each lossy hop re-encodes the image, so keep the highest-quality format as your working copy and convert toward the destination.