Convert jj to flif Online: jj2flif

You can use Tom's Editor to easily convert images from
Doodle, packed .JJ to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

JJ

Doodle, packed is an image format with extension JJ.

FLIF

Free Lossless Image Format is an image format with extension FLIF.