Convert flif to du2 Online: flif2du2
You can use Tom's Editor to easily convert images from
Free Lossless Image Format .FLIF to DU2 .DU2.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Free Lossless Image Format is an image format with extension FLIF.
DU2 is an image format with extension DU2.