- Private: files never leave your device
- Free, no sign-up
- Fast, works offline once loaded
How to use BMP to PNG Converter
- Drop your BMP files into the box, or click to browse. You can add many at once.
- Check the output format is PNG (PNG is lossless, so there is no quality setting).
- Download each PNG file, or press "Download all (ZIP)" to get them together.
About this tool
BMP to PNG Converter turns BMP images into PNG directly in your browser. BMP is an old uncompressed bitmap format that stores raw pixel data, so files are very large.
PNG is a lossless format. It keeps every pixel exactly as it is and supports transparent backgrounds, which makes it ideal for logos, icons, screenshots and graphics with sharp edges or text.
PNG is lossless like BMP but much smaller, so you lose nothing and save space. Because the conversion happens on your own device, it is fast, works for large batches and your pictures are never uploaded anywhere.
Frequently asked questions
How do I convert BMP to PNG?
Add your BMP file to the converter above, pick PNG as the output and download the result. The whole process takes a few seconds.
Does converting BMP to PNG reduce quality?
No. PNG is lossless, so nothing is lost during the conversion itself.
Can I convert many BMP files at once?
Yes. Drop as many files as you like. Each one is converted and you can download them individually or as a single ZIP.
Is BMP to PNG Converter really free?
Yes. You can use BMP to PNG Converter as often as you like with no sign-up, no watermark and no daily limit.
Are my images uploaded to a server?
No. BMP to PNG Converter runs entirely in your web browser, so your files stay on your own device and are never sent to DEWANARO or anyone else.