Convert flif to sfw Online: flif2sfw
You can use Tom's Editor to easily convert images from
Free Lossless Image Format .FLIF to Seattle File Works image .SFW.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Free Lossless Image Format is an image format with extension FLIF.
Seattle File Works image is an image format with extension SFW.