What is a GB file?
A .GB file typically stores either a DNA sequence for the GenBank database or a Nintendo Game Boy read-only memory (ROM) image.
The GenBank format, managed by the National Center for Biotechnology Information (NCBI), is a standard text format for sharing DNA and protein sequences. These files contain biological data, structural annotations, and metadata.
Alternatively, a .GB file can be a Game Boy ROM. This is a binary copy of the data from an original Nintendo Game Boy cartridge. Users create or download these files to play classic games on modern hardware.
How to open GB files?
To open a GenBank .GB file, you can use specialized bioinformatics software like Vector NTI or SnapGene Viewer. Because they store plain text, you can also view them with standard text editors like Notepad++.
To open a Game Boy ROM .GB file, you need a software emulator such as BGB or VisualBoyAdvance.
Because a .GB file has multiple possible meanings, we recommend using viewer.online/gb to identify the actual format of your file. viewer.online/gb analyzes .GB files to identify their exact format and creator software, shows which programs can open the file, and usually previews it.
Conversion and Modification
GenBank data files often need to be converted to other bioinformatics formats for different analysis tools. You can use convert.guru to easily convert .GB files into widely supported formats like .FASTA or .SEQ. Game Boy ROM files are compiled binary software and typically cannot be converted into other useful formats.
Summary
viewer.online/gb directly opens and previews .GB files in the browser, eliminating the need to install software or troubleshoot compatibility issues.