GB File Type

- The quick facts

What are GB files and how to open them

Are you having problems opening a GB file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a GB file?

Files that contain the .gb file extension usually contain a ROM image of a game that is contained within a Game Boy game cartridge. The Game Boy is a portable gaming device that was introduced by Nintendo in 1989.

The GB file holds an exact copy of the data from the game cartridge of an associated Game Boy game. The GB file is stored in a read-only ROM format. This file can be used to play the associated game on a Mac or PC. In order to play the game, however, the user must have the proper emulation software installed on his or her hard drive.

How to open GB files

Important: Different programs may use files with the GB file extension for different purposes, so unless you are sure which format your GB file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 10 different GB openers which you will find listed below.

Last updated: January 18, 2022

Suggest another file format using extension GB

While we know of one file format using the .GB file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .GB file.

Various apps that use files with this extension

These apps are known to open certain types of GB files. Remember, different programs may use GB files for different purposes, so you may need to try out a few of them to be able to open your specific file.

WinDS PROWinDS PROUser submitted
SimCitySimCityUser submitted
BioEditBioEditUser submitted
WinDS PRO AppsWinDS PRO AppsUser submitted
VBA-M - A VisualBoyAdvance ForkVBA-M - A VisualBoyAdvance ForkUser submitted
SnapGene ViewerSnapGene ViewerUser submitted
GB/C/A emulatorGB/C/A emulatorUser submitted
Vector NTI AdvanceVector NTI AdvanceUser submitted
Vector NTIVector NTIUser submitted
DiplomaDiplomaUser submitted
We have not verified any software that we know for certain will work with GB-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with GB-files. If you know one, please use the 'Suggest a program' link below and tell us about it!