Convert jj to bmp Online: jj2bmp

You can use Tom's Editor to easily convert images from
Doodle, packed .JJ to Microsoft Windows bitmap .BMP.
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.

BMP

Format created by Microsoft for their Windows and OS/2 operating systems. Images can be compressed or not.