A downloadable tool for Windows and macOS

Bfxr is an elaboration of the glorious Sfxr, the program of choice for many people looking to make sound effects for computer games.

Bfxr has moved in the direction of increased complexity and range of expression. All the buttons that you know and love are here, but there are some new things as well:

  • 5 new waveforms : triangle, breaker, tan, whistle, and pink noise.
  • 3 new filters : compression, harmonics, and bitcrusher.
  • Ability to lock parameters during mutation/randomization.
  • Expanded pitch-jumping abilities - good for arpeggiation effects.
  • Visualisation
  • Mixer
  • Keeps your sounds and mixes in persistant lists.
  • Can reverse synths
  • Ability to link directly to sounds

You have full rights to all sounds made with bfxr, and are free to use them for any purposes, commercial or otherwise.

DISCLAIMER: I had no part in Bfxr's development, I'm simply a big fan and wanted to get the program more exposure by uploading it to itch (with the creator's permission, of course). The program is super easy to use and has been a great way for someone with zero experience composing sound effects (like me) to create assets I'm happy with very quickly. In fact, at the time of writing, every game I've released with Virtually Competent has had nearly every sound effect created in Bfxr.

If you end up digging this tool as much as I do, please consider donating to increpare (or supporting him on Patreon), who did most of the work on this version of the program. The description above was ripped directly from bfxr.net, where you can find a web version of this application, as well as links to the source code and proper credits to all the folks who made its existence possible.

PlatformsWindows, macOS
Authorizzy neuhaus


Bfxr Standalone v1.4.1 (Win) 18 MB
Bfxr Standalone v1.4.1 (Mac) 22 MB


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great sfx for pixel games! thanks!

It can't "reverse synths", it can revert to older settings after a change :)