PNG to BMP Converter
Convert PNG to BMP online free, with no sign-up and no watermark. Drop up to 10 PNGs, click Convert, and download each BMP or grab them all as a ZIP. BMP is an uncompressed Windows bitmap format required by some older programs and hardware. Everything runs in your browser, so your files never leave your device and are never uploaded to a server.
Drop your PNG files here
or click to browse, up to 10 files, 25 MB each
Choose FilesQuick answer
To convert PNG to BMP, upload your PNG files to the converter above and click Convert each one becomes a Windows BMP bitmap instantly, right in your browser. It's free, needs no sign-up, and your files are never uploaded. You can convert up to 10 PNG files (25 MB each) at once and download them all as a ZIP.
How to convert PNG to BMP
- Upload your PNG files drag & drop, or click to browse (up to 10 files, 25 MB each).
- Select BMP as the output format from the dropdown.
- Click Convert. Each PNG becomes a BMP instantly.
- Download each BMP, or click “Download All (ZIP)” to get them in one file.
About BMP and transparency
BMP stores an image as raw, uncompressed pixels, which gives large files but is exactly what some legacy Windows software, embedded systems and specialised hardware expect. BMP has no transparency, so any transparent areas of your PNG are filled with white during conversion. Use PNG to BMP specifically when a program or device requires the BMP format.
PNG vs BMP: what's the difference?
PNG is a compressed, lossless image with transparency small and web-friendly. BMP is an uncompressed bitmap: large files, no transparency, but universally readable by older Windows tools. Converting PNG to BMP is about matching a required format, not improving quality; the file simply becomes larger and loses transparency.
Why convert PNG to BMP?
Convert to BMP when a legacy application, a piece of hardware, or an embedded system only accepts uncompressed bitmaps, or when you’re preparing an image for older Windows software. It’s a compatibility step rather than a quality upgrade. Batch mode converts several PNGs at once and returns them as a ZIP.
PNG to BMP on Windows, Mac, iPhone and Android
Because it runs in your browser, the converter works the same on Windows, macOS, Android and iPhone with nothing to install. Open the page, add your PNG files, and download the BMPs in seconds, whatever device you’re using.
Why choose our PNG to BMP converter
- Free & unlimited no account, no watermark, no daily limits.
- Private by design conversion happens in your browser; files are never uploaded.
- Batch + ZIP convert up to 10 PNGs at once and download them together.
- Simple one dropdown, one click, instant download.
- Works everywhere any modern browser on desktop or mobile, nothing to install.
Frequently asked questions (FAQ's)
Is this PNG to BMP converter free?
Yes completely free, with no sign-up, no watermark and no usage limits.
Why is the BMP file so much larger?
BMP is uncompressed, it stores every pixel raw, so files are far bigger than PNG.
What happens to transparency?
BMP has no transparency, so transparent areas are filled with white.
When would I need a BMP?
For older Windows programs, embedded systems or hardware that only accept uncompressed bitmaps.
How many files can I convert at once?
Up to 10 per batch, downloadable together as a ZIP.
Are my files uploaded to a server?
No. Everything runs in your browser and your files never leave your device.