Convert bmp to g3 Online: bmp2g3
You can use Tom's Editor to easily convert images from
Microsoft Windows bitmap .BMP to Group 3 fax file .G3.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Format created by Microsoft for their Windows and OS/2 operating systems. Images can be compressed or not.
Group 3 fax file is an image format with extension G3.