.GB File

The gb file extension is used for files that contain copies of Nintendo Gameboy video game cartridges.

These so called ROM images, are used in emulators, that allow these games to be played on computers.

Files with gb file extension can be found as ROM cartridges for emulators of the Nintendo Gameboy handheld gaming console.

How to open:

Various Ninendo Gameboy Emulators like Visual Boy Advance are able to work with the *.gb files.

How to convert:

ROM images for various emulators are rarely just simply converted, usually they need to be created from the original source for certain emulator.