Convert jp2k to flif Online: jp2k2flif
You can use Tom's Editor to easily convert images from
JPEG 2000 .JP2K to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
JPEG 2000 is an image format with extension JP2K.
Free Lossless Image Format is an image format with extension FLIF.