Play NSF files in your browser
The music of NES and Famicom games, ripped with the code that plays it. Play an NSF 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 NSF
An NSF holds a NES game's music the way the console played it: the game's own sound code and its notes, ripped from the cartridge, with a header naming the game, the composer and how many songs it has. Fans have ripped nearly every NES and Famicom soundtrack into it.
Playing one means running that 6502 code on an emulated NES and listening to its sound: two pulse voices, a triangle, noise and samples, and the chips some Famicom cartridges added, Konami's VRC6 and VRC7, Namco's 163, Sunsoft's 5B, the Famicom Disk System's and the MMC5's. An NSFE adds each song's title and length, and a playlist.
Filepeek runs the code in its own build of Game_Music_Emu inside your browser. A file of many songs opens like a folder of them, named from an NSFE's titles, and the one you pick plays at once, then fades. Show tags names the game, the composer and the voices, and Export saves a song as MP3 or WAV.
NES Sound Format
.nsf • .nsfe
Format
- MIME type
- audio/x-nsf
- Made by
- Kevin Horton
Inside the file
- Holds
- A game's sound code and notes
- Songs
- Up to 256
- Chips
- The NES's, and six on cartridges
- Lengths
- In an NSFE, not an NSF
Opens in every browser
Filepeek plays NSF 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 NSF
- Windowsfoobar2000 with foo_gep, and VLC
- MacVLC
- iPhone and iPadModizer
- AndroidZXTune
Questions
How do I play an NSF file?
Drop it on this page or choose Peek an NSF. Its songs are listed like a folder, and the one you pick plays right away.
How long does each song play?
An NSF 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. An NSFE gives each song's length and plays it for that.
Does it play the Famicom's extra sound chips?
Yes: Konami's VRC6 and VRC7, Namco's 163, Sunsoft's 5B, the Famicom Disk System and the MMC5.
Can I turn an NSF into an MP3?
Yes. Pick a song, choose Export, then Save as MP3 or WAV. Save as ZIP saves every song as a WAV.
What's the difference between NSF and NSFE?
An NSFE is an NSF in chunks that can also name each song, give its length and set their order. Both play here.