Free · in your browser

Free BMP to PNG converter.

Convert BMP to PNG in your browser. Drop one file or a whole folder, get PNG files back. No upload, no signup, no size limit, no watermark.

Need other formats? Universal converter →Compress the result →
  • 100% browser
  • Files never leave your device
  • No signup, no caps
  • GDPR & CCPA friendly
BMP to PNG Converter

Drop BMP photos to convert

BMP files only. We re-encode them as PNG in your browser. No upload, no signup, no size limit.

PNG is lossless, so there's nothing to tune. The output is a pixel-perfect copy of the source, just in PNG form.

What's in this converter

BMP in, PNG out. That's it.

A single-purpose BMP to PNG converter with the things people actually need: quality control, batch mode, and a privacy guarantee that files never leave your device.

BMP in, PNG out

Single-purpose: decode BMP, re-encode PNG. Nothing else to configure unless you want to.

Lossless output

PNG keeps every decoded pixel exactly. A perfect copy of the BMP, just in PNG form.

Batch in one shot

Drop a whole folder. Every PNG is bundled into a ZIP for one click to your downloads.

Batch supported

Multi-select or drop a folder. Each file converts in turn; the results download as a single ZIP.

No upload, no signup

Files never leave your device. No account, no daily quota, no per-file size limit, no watermark.

Works offline

Once the page is loaded, the converter runs without an internet connection. Useful for sensitive material.

FAQ

Common questions about BMP to PNG.

How do I convert BMP to PNG?
Drop your BMP file (or a whole folder) onto the converter. The browser decodes the BMP and re-encodes it as PNG, then gives the file back to download. No upload, no signup, no install. For multiple files, they bundle into a single ZIP.
Is the BMP to PNG converter really free?
Yes. No accounts, no daily caps, no per-file size limit, no watermark. The whole conversion runs in your browser, so there is nothing to ration.
Do my BMP files upload anywhere?
No. The BMP decoding and PNG encoding both happen on your device. Nothing uploads, nothing is logged. Close the tab and the files are gone.
What's the difference between BMP and PNG?
BMP is an uncompressed bitmap format. The files are huge because there is no compression. Converting to a modern format shrinks them dramatically. PNG is lossless and supports transparency, which makes it ideal for logos, screenshots, and graphics. PNG photos are usually 5 to 10 times larger than JPEG. Converting BMP to PNG makes sense when you need PNG's compatibility or features for your target platform.
Will the PNG be lossless?
Yes. PNG is lossless, so the converted file is a pixel-perfect copy of the decoded BMP. Note that if the source BMP was already lossy-compressed, that compression is baked in; converting to PNG cannot recover detail that was already lost.
Can I batch convert many BMP files at once?
Yes. Drop a whole folder or multi-select files. Each one converts in turn and the PNG files bundle into a single ZIP for one-click download.
Related reading

Photo guides on image formats.

Capture with context

Taking the photo yourself? Skip the format dance.

The iOS app captures JPEG with date, GPS, and address rendered onto the visible image. No format juggling at the end of the day. The stamp survives every upload, crop, or screenshot.

Download on theApp Store
iOS 15.6+ · iPhone, iPad, Mac & Vision Pro
  • JPEG output, ready for any platform
  • Visible timestamp + GPS on every shot
  • Atomic (network-synced) time
  • Works offline, syncs address later