Convert sfw to flif Online: sfw2flif
You can use Tom's Editor to easily convert images from
Seattle File Works image .SFW to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Seattle File Works image is an image format with extension SFW.
Free Lossless Image Format is an image format with extension FLIF.