Boojy Audio

Make music with less setup and distraction.

Boojy Audio is a free, open-source digital audio workstation for combining beats, melodies and recorded performances into complete songs. Play instruments, draw notes, record vocals, arrange and mix, all in a calm interface with sensible defaults. It's designed for musicians: sound comes first, and the visuals are there to support listening.

Download

Latest release: v0.6.0. More at boojy.org.

Alpha software. Boojy is actively developed and some workflows are still incomplete. The changelog lists what changed in each release, and the backlog is honest about what's missing. The screenshot above is from the released build.

What you can do

• Compose. Play the built-in synth, sampler and drum kit from a MIDI keyboard or the virtual piano, draw notes in the piano roll, and program drum patterns in the step sequencer.
• Record. Capture vocals and instruments with input monitoring and a count-in. A phrase you played before pressing record can be captured after the fact.
• Arrange and edit. Move, trim, split, join, loop and time-stretch audio and MIDI clips on a linear timeline. Undo is unlimited and edits are non-destructive.
• Mix. Balance tracks with faders and pan, use the built-in EQ, compressor, reverb, delay and limiter, automate volume, and host VST3 instruments and effects.
• Save and export. Projects auto-save. Export a mix or individual stems to WAV or MP3, and MIDI clips to standard .mid files.

Build from source

This section is for developers. You don't need any of it to use Boojy: download a release above.

You'll need Rust and Flutter. Both are pinned to exact versions in the repo (Rust in engine/rust-toolchain.toml, Flutter in ui/.fvmrc), so install rustup and FVM and they'll pick up the right ones. On macOS you also need the Xcode Command Line Tools.

git clone https://github.com/boojyorg/boojy-audio.git
cd boojy-audio
./build.sh                  # builds the Rust engine and links it into the app
cd ui
fvm install                 # first time only: fetches the pinned Flutter SDK
fvm flutter run -d macos

Windows builds also need the VST3 host libraries compiled with Visual Studio; the steps are in engine/vst3_host/README.md. Engineering conventions and build gates are in AGENTS.md.

Documentation

Doc	What it covers
PRODUCT.md	What Boojy is for and the principles that decide what goes in
BACKLOG.md	What's next, what's parked, and decisions already made
ARCHITECTURE.md	How the Flutter UI and Rust engine fit together
PLATFORMS.md	Which platforms ship when, and why the stack is what it is
CHANGELOG.md	What changed, release by release

Keyboard shortcuts

The full list is in the ▲udio menu at the top left (or press ?). The ones you'll reach for first:

Shortcut	Action
Space	Play / pause
R	Start / stop recording
L	Toggle loop
M	Toggle metronome
Q	Quantise selected
Cmd+J	Join clips
Cmd+L / Cmd+M	Toggle library / mixer
Cmd+P	Virtual piano
Cmd+Z / Shift+Cmd+Z	Undo / redo

Feedback and licence

Boojy Audio is a personal project and isn't taking code contributions or pull requests right now (see CONTRIBUTING.md). Bug reports and feedback are very welcome by email at [email protected].

Licensed under the GNU General Public License v3.0. Copyright 2025–2026 Tyr Bujac.