Extract text from Game Boy Advance song libraries (GSFLIB)
To convert GSFLIB song libraries to another format, you need foobar2000 or other Audio software.
To convert other file formats to the "Video Game Audio Rip" file type, you need software like foobar2000 or a similar tool.
A .gsflib file is a Game Boy Advance Sound Format Library file. Created by developers Caitsith2 and Zoopd, it is used by the emulation and chiptune community to store ripped music from Game Boy Advance (GBA) games. This library file contains shared audio data, such as sound banks and the underlying game audio engine code. It works alongside smaller minigsf files, which contain the specific sequence data for individual music tracks.
To play a .gsflib file, you need specialized software like foobar2000 equipped with a plugin like foo_gep, or dedicated chiptune players like Audio Overload.
The primary disadvantage of the .gsflib format is that it is proprietary and emulation-dependent. It is not supported by standard media players, smartphones, or web browsers. The file does not contain a standard audio stream; instead, it holds raw ARM7 executable code dumped directly from a GBA ROM. This makes native conversion incredibly challenging, as the audio must be generated by emulating the original console hardware.
Most users want to convert these files into standard audio formats like MP3, WAV, or FLAC for universal playback. Standard online converters fail because they attempt to process the file as standard audio data rather than executable machine code. This is a closed, proprietary format that requires a specialized rendering engine to output sound. If our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible. Otherwise, the best workaround is to render the audio output locally using a supported emulator-based media player.
Convert.Guru analyzes your GSFLIB file, detects the exact format, and lets you read the text inside.
If you want to convert GSFLIB file to MP3, WAV, AAC, FLAC, OGG, WMA, M4A, AIFF, OPUS, ALAC, APE or WV, you can use foobar2000 or similar software from the "Game Boy Music Emulation" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to GSFLIB, try foobar2000 or another comparable tool in the "Game Boy Music Emulation" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our GSFLIB converter.