Can I convert PNG to BMP on iPhone, Android, Mac or Windows?

Yes. ConvertPixels works in Safari, Chrome, Edge and Firefox on any device, so you can convert PNG to BMP on your phone or computer without installing an app.

Is there a free PNG to BMP converter with no sign-up?

Yes, this one. Converting PNG to BMP on ConvertPixels is free, with no sign-up, no watermark and no daily cap. Convert up to 30 files per batch, each up to 50 MB.

Can I convert PNG to BMP without losing quality?

Yes. BMP is a lossless format, so your converted file is pixel-for-pixel the same as the PNG. (It can't add back detail the original never had.)

Does BMP keep the transparent background of my PNG?

No - BMP has no transparency, so see-through areas get a solid fill. That's white unless you pick another background color in the options.

Can I batch convert PNG to BMP?

Yes. Add up to 30 PNG files and convert them in one batch. You can even choose a different output format for individual files, then download them separately or together as a ZIP.

Is it safe to upload PNG files to ConvertPixels?

Yes. Uploads use an encrypted connection and are processed automatically - nobody views them. Your originals are deleted straight after conversion and the results within an hour, or instantly if you click "Delete from server now".

Convert

PNG to BMP Converter

Convert PNG images to BMP online in seconds - free, with no sign-up and no watermark. Batch convert up to 30 files and download them together as a ZIP.

Free
No sign-up
No watermark
Private by design

Choose filesor drag and drop files hereUp to 30 files · 50 MB each

Image Converter

How to use it

1
Drop your PNG files onto the converter
2
Press Convert to turn them into BMP
3
Download your BMP images one by one or as a ZIP

PNG to BMP

Why convert PNG to BMP?

PNG and BMP are both lossless formats. BMP is the usual choice for legacy Windows software (files are very large). PNG can have a transparent background, BMP can't.

Where BMP works best

BMP is ideal for legacy Windows software (files are very large). Converting gives you a file that works in the apps and websites that ask for BMP.

PNG vs BMP: what's the difference?

Property	PNG	BMP
Compression type	Lossless (exact pixels, larger files)	Lossless (exact pixels, larger files)
Transparent background	Yes	No
Animation	No	No
Where it opens	All browsers and devices	Most browsers, rarely used on the web
Used for	Logos, screenshots, graphics, images with text or transparency	Legacy Windows software (files are very large)

What is a PNG file?

PNG (Portable Network Graphics) is a lossless image format created in 1996 as a patent-free replacement for GIF. It stores every pixel exactly, so text, logos and sharp edges stay perfectly crisp however often you save the file.

PNG supports full transparency, which makes it the standard format for logos, icons, screenshots and graphics placed on top of other designs. For photos, though, PNG files are several times larger than JPG.

How to open a PNG file

PNG opens everywhere: Windows Photos, Mac Preview, iPhone and Android galleries and every web browser. Editors like Photoshop, GIMP, Figma and Canva keep the transparency intact.

Extension: .png
Compression: Lossless
Transparency: Yes
Best for: Logos, screenshots, graphics, text

What is a BMP file?

BMP (bitmap) is Microsoft's original Windows image format. It stores pixels with little or no compression, so it's simple and lossless but very large - a 12-megapixel photo can top 35 MB.

BMP is mainly found in older Windows software, some industrial and embedded systems, and scanner output. For almost every other use, PNG gives the same quality at a fraction of the size.

How to open a BMP file

Windows Photos and Paint open BMP files, as does Mac Preview. Most browsers can display them too. Convert to PNG for a lossless copy that's much smaller, or JPG for photos.

Extensions: .bmp, .dib
Compression: None (usually)
Transparency: Rarely supported
Best for: Legacy Windows software