How to convert BMP to PNG
- Add your .BMP file - drop it in the box above or click to browse.
- Convert it to .PNG in a few seconds.
- Download your new .PNG file.
What to expect
- No quality loss: both BMP and PNG are lossless, so every pixel value is preserved exactly after conversion.
- Expect the PNG to be roughly 60-80% smaller than the BMP - this is normal compression, not a sign of quality loss.
- Standard 24-bit BMP has no alpha channel; if your source is a 32-bit BMP that includes transparency, PNG will preserve it.
Frequently asked questions
Does converting BMP to PNG reduce image quality?
No. Both formats are lossless. The pixel data is bit-for-bit identical after conversion; only the file size changes.
Why is the PNG file so much smaller than the BMP?
BMP stores every pixel uncompressed. PNG applies DEFLATE compression to the same data, cutting file size by 60-80% with no visual difference.
Can I convert multiple BMP files at once?
Yes. IrfanView and XnView both offer batch conversion. On the command line,
magick mogrify -format png *.bmp converts an entire folder in one step.Will the PNG keep the original BMP colors exactly?
Yes. Standard 24-bit BMP and PNG use the same RGB values, so colors are preserved without any adjustment.
Programs that convert BMP: Picture Resize Free Online Images Converter · XnView · ACDSee Photo Manager · Adobe Fireworks · Adobe Illustrator · FormatFactory · IrfanView · Microsoft Expression Design
