A downloadable tool for macOS

MJSFX is a free, native macOS sounds and effects design studio.

Start from a generator (lasers, explosions, blips, hits, and so on) and build with layered oscillators, each with its own pitch sweep, envelope, and filters. Chain reverb, delay, distortion, bitcrush, and more per layer or across the whole sound, plus LFOs that can modulate any knob, including other LFOs. Everything exports to WAV, including retro formats like 22kHz/8-bit and per-layer stems.

It has serious MIDI hardware support with soft pickup and per-controller profiles, a built-in library with folders and filtering, a live "Sound Portrait" visualization drawn from real engine output, and twenty themes plus a browser-based theme builder.

No ads, no telemetry, and you own everything you make. Requires Apple Silicon and macOS 14+.

More information

Updated	14 hours ago
Published	1 day ago
Status	Released
Category	Tool
Platforms	macOS
Author	Matthew Schultz
Tags	8-Bit, Arcade, Audio, dev, Effects, mac, macos, sound, Sound effects, studio
AI Disclosure	AI Assisted, Code

Download

MJSFX-1.29.dmg 12 MB

Install instructions

• Download directly from MJSFX.app

• MJSFX on Mac App Store

HOMEBREW:

# install tap
brew tap matthewjschultz/tap

# trust tap (Homebrew 6+, if required)
brew trust --tap matthewjschultz/tap

# install app
brew install mjsfx

# update
brew upgrade mjsfx

Also available on

Comments

superquake1 day ago

Would love a Windows version of this - is a version coming in the future?

Matthew Schultz23 hours ago

Unfortunately, I don’t have one planned, @superquake