Convert bmp to j2k Online: bmp2j2k
You can use Tom's Editor to easily convert images from
Microsoft Windows bitmap .BMP to JPEG-2000 Code Stream Syntax .J2K.
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.
JPEG-2000 Code Stream Syntax is an image format with extension J2K.