Play BRSTM files in your browser
The looping music of Wii games, and of the custom tracks fans make for them. Play a BRSTM right here and keep it as an MP3 or WAV. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your game's sound plays the moment it opens, twice through its loop and then a fade, its whole waveform across your screen.
- Its whole waveform • Press or drag to jump
- Back and ahead 10 seconds • Half, 1.5× or double speed
- Show tags • Codec, loop, sample rate and channels
- Export • Save as MP3 or WAV
About BRSTM
BRSTM is the music format of Nintendo's Wii: R for Revolution, the Wii's code name, and STM for stream. Games stream their music from it, and fans make BRSTMs of their own as custom music for Mario Kart Wii and Super Smash Bros. Brawl.
A BRSTM holds Nintendo's DSP-ADPCM, 4 bits a sample, or PCM, in blocks for each channel, with the loop in its header, so a level's music plays on seamlessly for as long as it lasts. The 3DS, Wii U and Switch carried it on as BCSTM and BFSTM.
Filepeek plays a BRSTM in your browser with vgmstream, twice through its loop and then a fade, with its waveform, speeds and tags, and Export saves it as MP3 or WAV.
Wii music stream
.brstm
Format
- MIME type
- application/octet-stream
- Made by
- Nintendo
- Released
- 2006
Inside the file
- Audio
- Nintendo's DSP-ADPCM or PCM
- Loop
- Where the music starts over
- Channels
- Mono, stereo or more
- Console
- Wii
Opens in every browser
Filepeek plays BRSTM 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 BRSTM
- WindowsBrawlCrate, and foobar2000 with vgmstream, both free
- MacNo app built in plays it • vgmstream-cli, from Homebrew, turns it into a WAV
- iPhone and iPadNo app built in plays it
- AndroidNo app built in plays it • An MP3 saved here plays anywhere
Questions
How do I play a BRSTM file?
Drop it on this page or choose Peek a BRSTM. It plays in your browser, twice through its loop and then a 5 second fade, the way a game loops its music.
Can I turn a BRSTM into an MP3?
Yes. Choose Export, then Save as MP3 or WAV, and the sound is saved as it plays here, loop and fade included.
Why does my custom BRSTM loop at the wrong place?
The loop is wherever the tool that made it put it, in the header. Filepeek plays it as the game would, from the start to the end and back to the loop.
Does it play BCSTM and BFSTM too?
Yes. They're the 3DS's, Wii U's and Switch's BRSTM, and they play the same way.