Convert bmp to du2 Online: bmp2du2
You can use Tom's Editor to easily convert images from
Microsoft Windows bitmap .BMP to DU2 .DU2.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Format created by Microsoft for their Windows and OS/2 operating systems. Images can be compressed or not.
DU2 is an image format with extension DU2.