BMP to PNG Converter
Keep every pixel of your BMP images while cutting the file size, in a format every app supports.
- Files never leave your device
- 100% free
- No sign-up
- No watermark
- Works offline after first load
or drag & drop BMP files here — or paste with Ctrl+V
How to convert BMP to PNG
- Select or drop your BMP images — as many as you like, or paste one with Ctrl+V.
- Check the preview, and resize or set the DPI if you want.
- Click Convert and download the PNG files — several come as a ZIP.
About BMP to PNG Converter
BMP is the old uncompressed Windows bitmap format; PNG is a lossless format that keeps transparency. Converting gives you lossless quality with transparent backgrounds — ideal for logos, screenshots, graphics and anything you will edit again.
Drop in one picture or hundreds and they are converted together with a live before / after preview that shows the new file size. Choose the quality, the colour for transparent areas, resize on the way, set the DPI and keep photo details — everything runs in your browser, so your images stay private.
Good for
- Editing pictures without losing more quality
- Logos, icons and graphics with transparent backgrounds
- Screenshots and diagrams with sharp text
Tip: Choose “PNG-8” for graphics with few colours — files are often 60–80% smaller.
Frequently asked questions
Will I lose quality?
No. PNG is lossless like BMP, but compressed — the picture is identical and the file is usually several times smaller.
Can I convert many BMP files at once?
Yes. Add as many as you like — they are all converted with the same settings, and you download them one by one or together as a ZIP.
Can I change the size or quality too?
Yes. Under “Resize and more” you can fit the pictures within a width and height, scale them by a percentage or set the DPI.
Can I convert to other formats?
Yes. Pick another format from the list — JPG, PNG, WebP, AVIF, GIF, BMP, TIFF or ICO.
Is the conversion private?
Yes. Your browser converts the files itself, so nothing is uploaded.