Convert ngg to bmp Online: ngg2bmp

You can use Tom's Editor to easily convert images from
Nokia Group Graphics .NGG to Microsoft Windows bitmap .BMP.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

NGG

Nokia Group Graphics is an image format with extension NGG.

BMP

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