Convert flif to grf Online: flif2grf
You can use Tom's Editor to easily convert images from
Free Lossless Image Format .FLIF to GRF, MAX, P41, PIX .GRF.
Tom's Editor is a free, online image manipulation and converter program.
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Free Lossless Image Format is an image format with extension FLIF.
GRF, MAX, P41, PIX is an image format with extension GRF.