Convert grf to flif Online: grf2flif

You can use Tom's Editor to easily convert images from
GRF, MAX, P41, PIX .GRF to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.

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GRF

GRF, MAX, P41, PIX is an image format with extension GRF.

FLIF

Free Lossless Image Format is an image format with extension FLIF.