Convert ist to flif Online: ist2flif
You can use Tom's Editor to easily convert images from
Interlace Studio .IST to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Interlace Studio is an image format with extension IST.
Free Lossless Image Format is an image format with extension FLIF.