Convert ddbug to flif Online: ddbug2flif
You can use Tom's Editor to easily convert images from
Diddle/DiddleBug sketches .DDBUG to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.
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DDBUG
Diddle/DiddleBug sketches is an image format with extension DDBUG.
FLIF
Free Lossless Image Format is an image format with extension FLIF.