Convert BMP to PNG Online
BMP (Bitmap) is an uncompressed raster format that produces very large files. While BMP images contain full colour information with no quality loss, their file sizes are impractical for sharing, web use, or storage. PNG provides lossless compression that dramatically reduces file size while preserving every pixel exactly. This tool converts BMP files to PNG in your browser, typically reducing file size by 70–90% depending on the image content. The result is a lossless PNG identical in quality to the original BMP but much more practical to use and share.
Drop a BMP file here or click to browse
Accepts .bmp files
FAQ
- Is any quality lost when converting BMP to PNG?
- No. PNG is a lossless format, so every pixel from the BMP is preserved exactly. The conversion only applies lossless compression to reduce file size.
- How much smaller will the PNG be?
- PNG files are typically 70–90% smaller than equivalent BMP files due to lossless compression, though the exact saving depends on how much repetition is in the image.
- Does BMP support transparency?
- Some BMP variants support transparency (32-bit BMP with alpha), which will be preserved in the PNG output. Standard 24-bit BMPs have no transparency.