Convert ism to flif Online: ism2flif

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

Go to Tom's Editor

ISM

Image System is an image format with extension ISM.

FLIF

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