.GB File Extension

2 file types use the .gb file extension.
File Type 1

Game Boy ROM File

Developer N/A
Popularity
4.1  |  35 Votes
Category Game Files
Format N/A

What is a GB file?

A GB file is a ROM image of a Nintendo Game Boy video game. It stores the complete data of a Game Boy game dumped from a game cartridge. Gamers load GB files in a Game Boy emulation program on a computer to play games without the Game Boy console.

More Information
Screenshot of a .gb file in VisualBoyAdvance 2
GB file open in VisualBoyAdvance 2

Gaming enthusiasts utilize emulation software to play games on their computers without the gaming console that initially played them. For example, gamers who want to relive the games they played on Game Boy in the 1980s - 90s use emulation software, such as VisualBoyAdvance, KiGB, and BGB, to emulate Game Boy game ROMs.

To get game data stored in game cartridges into a playable format, gamers dump game data from the cartridges with special hardware and software, then save the data in the GB format on their computer. They may then upload the files to share with others who can then download the GB files to play them on their computer with an emulator.

How to open a GB file

You can open a GB file with various Game Boy emulators, including VisualBoyAdvance, BGB, and KiGB. For example, to open a GB file with VisualBoyAdvance, select File → Open GB...

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Programs that open GB files

Windows
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Updated July 7, 2022
File Type 2

GenBank Data File

Developer NCBI
Popularity
3.8  |  13 Votes
Category Data Files
Format Text

What is a GB file?

Scientific data format used to store DNA sequences and allow users to closely examine the genome information; often contains a single sequence but may contain multiple sequences.

More Information

To create a GB file using Genome Compiler, select "New Project" by clicking the document icon with the "+" symbol. Then, select "Export" by clicking the arrow symbol on the icon with two floppy disks. Finally, select "Export as GenBank", name the file, choose the save location, and click Save.

NOTE: The GenBank format was developed by the U.S. National Center for Biotechnology Information (NCBI). GenBank Sequence files commonly appear with the .GBK extension.

Programs that open GB files

Windows
Mac
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Web
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Updated February 2, 2016

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