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.


Bfxr Standalone v1.5.1 (Windows) 18 MB
Bfxr Standalone v1.5.1 (Mac) 15 MB


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why did the creator no make linux version :((((((( very big sad

idk maybe he had problems with exporting a linux build


why does it export to a weird file that not working ?

Linux? You've got mac and windows, maybe a mono Linux port? If that's what you programmed it with.

can you use bfxr ofline???


thx for the fast respond:)


Thanks for having this up! Consider updating the version to 1.5.1 (on the main bfxr.net website available) - I think i updated it last year or something :)


done! thanks for the heads up :)


Now that BFXR cant run because flash it out of date this is very helpful application

Use itch.io client or download the executable.

you should create an update for the new Mac OS?

i dont think thats gonna happen

Is there an update for the new Mac OS?


why is not for linux

ye it would be useful  if it had linux support


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is because the software was made in Adobe AIR (A Virtual Machine For Flash) and it doesn't have a linux support, and it will never gonna happen because adobe sell Air to another company on the same date Flash dropped support (31/12/2020)

If you want to use the software on linux you have to download the original flash file and emulate on a adobe flash player for the system

Adobe Flash Player Executable (The Only Website Adobe Still Doesnt Taken Down): https://www.adobe.com/support/flashplayer/debug_downloads.html

Bfxr (Flash): https://www.bfxr.net/Bfxr_Flash.swf

You can use wine/PlayOnLinux to use it.

this is very cool!



great sfx for pixel games! thanks!

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