Convert BMP to PNG
or click to upload
BMP
Shrink large BMP bitmaps into PNG files with exactly the same pixels. The conversion runs in your browser, so your images stay on your device.
- No watermarks
- Fast conversion
- 100 % in-browser
- Zero sign-up
How It Works
Convert BMP to PNG in three quick steps.
Upload BMP files
Drag and drop BMP files or browse your device. You can add several at once.
Convert to PNG
Your browser converts every file locally, so nothing is uploaded.
Download PNG
Save your PNG file, or a ZIP when you converted several files.
What is a BMP to PNG converter?
BMP is an old Windows bitmap format that stores pixels almost uncompressed, so even small images produce huge files. PNG stores the same pixels with lossless compression. Converting a BMP to PNG usually cuts the file size dramatically without changing a single pixel.
For photographs, BMP to JPG produces smaller files still, at the cost of some quality.
Much smaller files
Screenshots and graphics often shrink by 80% or more because PNG compresses flat areas very efficiently.
No quality loss
PNG compression is lossless, so the converted image is pixel-for-pixel identical.
Better compatibility
PNG is accepted by websites, apps and documents that reject or mishandle BMP files.
Batch conversion
Select many BMP files, convert them together and download a ZIP.
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Simple BMP to PNG Conversion
A fast, private way to turn BMP files into PNG.
Quick Conversion
Convert BMP to PNG in seconds. Everything is processed on your device, so there is no upload wait.
Private by Design
Your files never leave your browser. Nothing is uploaded to a server and nothing is stored.
Works Everywhere
Use it on desktop, tablet or phone. There is no software to install and no extension needed.
Completely Free
No account, no watermark and no limit on how many files you convert.
Frequently Asked Questions
Common questions about BMP to PNG conversion.
No. PNG is lossless, so the image keeps exactly the same pixels.
It depends on the image. Graphics and screenshots often become a fraction of the BMP size; detailed photos save less.
No. The converter runs in your browser on desktop and mobile.
Yes. Add multiple files and you will get a ZIP with all the PNGs.
No. It is processed locally and never sent to a server.