Convert tn4 to flif Online: tn42flif
You can use Tom's Editor to easily convert images from
Tiny Stuff .TN4 to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Tiny Stuff is an image format with extension TN4.
Free Lossless Image Format is an image format with extension FLIF.