BMP to PNG Converter
Convert BMP to PNG online free, with no sign-up and no watermark. Drop up to 10 BMP files, click Convert, and download each PNG or grab them all as a ZIP. PNG keeps the same quality as BMP but in a far smaller, web-friendly file with transparency support. Everything runs in your browser, so your files never leave your device and are never uploaded to a server.
Drop your BMP files here
or click to browse, up to 10 files, 25 MB each
Choose FilesQuick answer
To convert BMP to PNG, upload your BMP files to the converter above and click Convert each one becomes a smaller, lossless PNG instantly, right in your browser. It's free, needs no sign-up, and your files are never uploaded. You can convert up to 10 BMP files (25 MB each) at once and download them all as a ZIP.
How to convert BMP to PNG
- Upload your BMP files drag & drop, or click to browse (up to 10 files, 25 MB each).
- PNG is already set as the output format on this page.
- Click Convert. Each BMP becomes a PNG instantly.
- Download each PNG, or click “Download All (ZIP)” to get them in one file.
BMP to PNG shrinks the file without losing quality
BMP stores images as raw, uncompressed pixels, so the files are large and slow to share. PNG uses lossless compression: it keeps exactly the same quality but in a much smaller file, and it adds transparency support. Converting BMP to PNG is the easy way to make an old bitmap small, web-friendly and ready to upload with no quality loss.
BMP vs PNG: what's the difference?
BMP is an uncompressed Windows bitmap: large files with no transparency, common in older software. PNG is a compressed, lossless image with transparency that opens everywhere. Converting BMP to PNG keeps full quality while dramatically cutting the file size and improving compatibility.
Why convert BMP to PNG?
Shrink a bulky bitmap for email or upload, open a BMP on a device or website that doesn’t support it, or bring an old image into a modern, editable format. PNG’s lossless quality and transparency make it the natural upgrade from BMP. Batch mode converts a full set of bitmaps at once and returns them as a ZIP.
BMP to PNG on Windows, Mac, iPhone and Android
Because the converter runs in your browser, it works the same on Windows, macOS, Android and iPhone with nothing to install. Open the page, add your BMP files, and download the PNGs in seconds handy when an old bitmap won’t open on a phone or Mac.
Why choose our BMP to PNG 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 BMPs at once and download them together.
- Smaller & lossless PNG keeps full quality in a much smaller file.
- Works everywhere any modern browser on desktop or mobile, nothing to install.
Frequently asked questions (FAQ's)
Is this BMP to PNG converter free?
Yes completely free, with no sign-up, no watermark and no usage limits.
Will I lose quality converting BMP to PNG?
No PNG is lossless, so it keeps exactly the same quality as the BMP.
Will the PNG be smaller than the BMP?
Usually much smaller PNG compresses the image while BMP is uncompressed.
Does PNG support transparency?
Yes PNG adds transparency support that BMP doesn’t have.
How many BMP 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.