Play GBS files in your browser
The music of Game Boy games, ripped with the code that plays it. Play a GBS right here, each song listed like a folder, and save it as MP3. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
A file of many songs opens like a folder of them, and the one you pick plays at once, then fades. A file of one song plays the moment it opens.
- Its songs listed like a folder • Names from the file
- Its whole waveform • Half, 1.5× or double speed
- Show tags • Game, composer, system and voices
- Export • Save a song as MP3 or WAV
About GBS
A GBS holds a Game Boy game's music as the handheld played it: the game's sound code and notes, taken from the cartridge, with a header naming the game, the composer and the number of songs. Soundtracks of Game Boy and Game Boy Color games are shared in it.
Playing one runs that code on an emulated Game Boy, which drives its sound: two square voices, a voice of 32 wave samples and noise, in stereo.
Filepeek runs it in its own build of Game_Music_Emu inside your browser. A file of many songs opens like a folder of them, and the one you pick plays at once, then fades. Show tags names the game and the composer, and Export saves a song as MP3 or WAV.
Game Boy Sound System
.gbs
Format
- MIME type
- audio/x-gbs
- Made by
- Scott Worley
Inside the file
- Holds
- A game's sound code and notes
- Voices
- 2 squares, a wave and noise
- Songs
- Up to 255
- Lengths
- Not in the file
Opens in every browser
Filepeek plays GBS files in Chrome, Edge, Firefox and Safari. No browser plays them by itself.
- YouChromePlays through Filepeek
- YouEdgePlays through Filepeek
- YouFirefoxPlays through Filepeek
- YouSafariPlays through Filepeek
Apps that open GBS
- Windowsfoobar2000 with foo_gep, and VLC
- MacVLC
- iPhone and iPadModizer
- AndroidZXTune
Questions
How do I play a GBS file?
Drop it on this page or choose Peek a GBS. Its songs are listed like a folder, and the one you pick plays right away.
How long does each song play?
A GBS doesn't say how long its songs are, so each plays for up to 2 minutes 30 seconds and stops where it falls silent, then fades.
Can I save Game Boy music as MP3?
Yes. Pick a song, choose Export, then Save as MP3 or WAV. Save as ZIP saves every song as a WAV.
Is a .gbs file always music?
No. Circuit board makers name a board's bottom solder mask .gbs too. Those open on the board viewer, by what is inside them.