Gjallarhorn
Route any sound. Anywhere.
Route audio from devices and applications to any output on your Mac. A visual, native menu bar app that just works.
Coming Soon Free · macOS 15+ · Apple SiliconRoute audio from any running app.
Pick a running application and route its audio to any output device. Gjallarhorn captures the audio stream directly, including child processes and helper renderers. Route your browser to headphones while keeping everything else on speakers.
Drag, connect, done.
A visual canvas shows your inputs, apps and outputs. Draw connections between sources and destinations to create routes. See active routes at a glance with real-time audio level meters on each connection.
Set it once, forget it.
Gjallarhorn saves your routing setup and restores it automatically on launch. Unplug a device? The route appears as a ghost and reconnects when the device comes back. Same for apps — quit and relaunch, the route picks up where it left off.
Features
Free Forever
No trial, no subscription, no ads. Gjallarhorn is free to use without any limitations.
Native macOS
Built with Swift and CoreAudio. Lightweight menu bar app, runs natively on Apple Silicon.
Per-Route Volume
Control volume independently on each route. Boost your mic input while keeping app audio low, all from one place.
Audio Metering
Real-time VU meters on every active route. See audio levels at a glance, at 30 fps.
Auto-Reconnect
Unplug a device? The route stops gracefully. Plug it back in and it restarts automatically. Same for applications.
Menu Bar
Lives in the menu bar. Quick toggle, active routes overview, keyboard shortcuts. Stays out of your way.
Ghost Routes
Disconnected devices and quit apps stay visible as ghost routes. They reconnect automatically when available again.
Private
No data collection, no analytics, no network calls. Everything runs locally on your Mac.