A Device-Independent bitmap (DIB) is a raster image file that is similar in structure to the standard Bitmap files(BMP). It contains a color table that describes the mapping of RGB colors to the pixel values. This enables DIB to represent images on any device. It can be opened with almost all applications that can open a standard BMP file on Windows as well as macOS.
Files having extension .BMP represent Bitmap Image files that are used to store bitmap digital images. These images are independent of graphics adapter and are also called device independent bitmap (DIB) file format. This independency serves the purpose of opening the file on multiple platforms such as Microsoft Windows and Mac. The BMP file format can store data as two-dimensional digital images in both monochrome as well as color format with various colour depths.
You can also convert DIB into many other file formats. Please see the complete list below.