PNG to BMP Converter

What happens when you convert PNG to BMP

• The image is decoded and written as a 24-bit uncompressed bitmap.

How to convert PNG to BMP online

1. Press "Choose PNG files" and select one or more files, or drag them onto the box. You can add files of any size your device can hold in memory.
2. Adjust the settings if you need to. The output is lossless, so there is no quality setting to worry about.
3. Press "Convert to BMP". Images convert in a second or two each.
4. Save each BMP with its download button. Close the tab and every trace of the files is gone from memory.

Why convert PNG to BMP?

PNG files usually come from screenshots, logos, diagrams and anything with transparency. People convert them to BMP because BMP is read by almost every Windows program, embedded display and old piece of software.

In short, PNG is good at what it was made for, and BMP is the more practical choice when the file has to open, upload or print somewhere else. PNG opens in every browser and image viewer, while BMP opens in browsers and every Windows image tool.

How to convert PNG to BMP on Windows, Mac, iPhone and Android

On Windows

Open this page in Chrome, Edge or Firefox, drag your PNG files in from File Explorer, and press Convert. Each BMP is saved to your Downloads folder. Paint can also re-save an image as BMP with Save as, provided Windows can open the PNG in the first place.

On a Mac

Safari, Chrome and Firefox all work. Drag the PNG files from Finder onto the drop zone and the BMP files land in Downloads.

On iPhone and iPad

Open the page in Safari and tap Choose PNG files. You can pick from Photos or from the Files app. The converted BMP appears in Files, in the Downloads folder; to put it in your photo library, open it there, tap Share and choose Save Image.

On Android

Open the page in Chrome, tap Choose PNG files and pick them from Files or your gallery. The BMP is saved to the Download folder, where any file manager can find it.

Best settings for PNG to BMP

A 24-bit BMP stores every pixel uncompressed, three bytes each, so size is simply width times height times three: a 12 megapixel photo becomes about 36 MB. Use the Maximum width setting if the program that needs the BMP does not need full resolution.

PNG vs BMP: the differences

About PNG and BMP files

What is a PNG file?

PNG compresses without losing a single pixel, so screenshots and text stay razor sharp, but a photograph saved as PNG is often three to five times the size of the same photo as JPG.

What is a BMP file?

BMP usually stores pixels with no compression at all, so a 12 megapixel photo is about 36 MB. That size is the price of being readable by almost any program ever written for Windows.

PNG to BMP not working? Common problems

• Colours look slightly different. Browsers convert images to the standard sRGB colour space when they decode them, so wide-gamut and CMYK images can shift a little.
• A phone photo comes out upright even though it looked sideways elsewhere. That is correct: the rotation stored in the photo is applied during conversion, so the BMP is always the right way up.
• The file is bigger than expected. It depends on the settings. At the defaults, the BMP usually comes out close in size to the PNG; lower the quality for a smaller file.

Convert PNG to BMP from the command line

If you work in a terminal, ImageMagick converts PNG to BMP in one line:

magick input.png output.bmp

To convert every PNG in a folder at once, use magick mogrify -format bmp *.png. The converter on this page does the same job without installing anything.