Convert PNG to BMP

Convert PNG to BMP for compatibility rather than quality: industrial controllers, till systems and in-house programs from years back read nothing but an uncompressed picture.

What happens when you convert PNG to BMP

The compression comes off and every dot is written as its own number. The image itself does not change, while the file grows several times over, because even a flat background takes room.

Transparency from the PNG carries over and the result keeps an alpha channel. The old programs that usually call for BMP often ignore it, though, and show a solid background where the transparent areas were.

• Width and height in pixels are the same and the colours do not shift.
• No new losses appear: PNG held the image without them and BMP holds it the same way.
• If transparency matters, check the result in the very program you are converting for.

To bring the file back to a normal weight, use the BMP to PNG converter. For sending and publishing people more often take the PNG to JPG converter.

How to convert

1. Upload your PNG file to this page.
2. Check that the target format is BMP.
3. Start the conversion and wait for the finished file.
4. Download the BMP and open it in the program that expects it.

Frequently asked questions

Why did the file get so much bigger?

BMP applies no compression: its size follows the number of dots and the colour depth, not how complex the picture is.

Does the transparent background survive?

The alpha channel stays inside the file. Whether a program shows it is up to that program, since many older viewers read colour only.