PNG to BMP
Make uncompressed 24-bit bitmaps from PNG files for software and hardware that won't read anything else.
PNG to BMP for systems that need raw bitmaps
Some software simply doesn't speak PNG. Old Windows applications, label-printer utilities, signage controllers, and small embedded screens often list BMP as their only supported image type. This PNG to BMP converter creates a standard 24-bit bitmap they can read.
BMP is about as simple as image files get: a short header followed by the color of every pixel. That simplicity is exactly why it's still in use.
How to convert PNG to BMP
It needs no setup and has no settings to adjust.
- 1
Pick a PNG
Drop a single PNG onto the upload box, or click to find it on your device.
- 2
Convert to BMP
Press the button. Each pixel is written out as-is, and any transparent area is blended onto white.
- 3
Copy it where it's needed
Download the .bmp, then load it into your program, label printer or device.
PNG vs BMP
| PNG | BMP (from this tool) | |
|---|---|---|
| Compression | Lossless | None |
| Transparency | Yes | No |
| File size | Small to moderate | Large and fixed by dimensions |
| Software support | All modern software | Older software and hardware too |
| Best for | Web, editing, sharing | Legacy and embedded systems |
Tips for embedded and legacy devices
- Match the exact pixel size. Many controllers and displays reject images that aren't the expected dimensions, such as 128 × 64 or 480 × 272. Set them with Resize Image before converting.
- Check the manual for bit depth. This tool writes 24-bit files. If your hardware expects 16-bit or 1-bit, take one more step in an editor.
- Mind the storage. A BMP's size is width × height × 3 bytes. Small devices can fill up quickly.
- Keep the PNG. It's far smaller, and easy to reconvert later.
If you only need the picture to open somewhere, PNG usually isn't the problem; check whether the system accepts JPG, which you can make with PNG to JPG. To turn a bitmap back into a modern file, use BMP to PNG.
Private and free
The bitmap is written in your browser, so the image stays on your device. No sign-up is needed, and no watermark is added.
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Frequently asked questions
Drop the PNG on this page and press Convert to BMP. The 24-bit bitmap is created in your browser and downloads right away.
BMP files made here have no alpha channel, so transparent parts turn white, and semi-transparent edges blend with white. If the bitmap should have a different background, add it to the PNG first.
A PNG is compressed, while a BMP isn't. A 1000 × 1000 pixel image is about 3 MB as a BMP, even if the PNG was just 50 KB.
No, for opaque pixels. PNG and BMP are both lossless, so the colors stay the same. Only transparency is lost.
Not on this page, since the output is always 24-bit. Use a free editor like GIMP or IrfanView to reduce the color depth after converting.
Older firmware often can't decompress PNG. A bitmap needs no decoding at all, so a simple processor can draw it directly, one row of pixels at a time.
Yes. It runs in Safari, Chrome and other browsers on macOS, with no extra software.
No. It's converted on your own device.
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