Free Open-source Pro-grade audio routing for your desktop.
Build a node graph of inputs, effects, and outputs. Process any audio source in real-time with a flexible processing pipeline.
Create your own system-wide audio devices to route between apps, DAWs, or meeting tools
Splitwave runs on macOS 13 Ventura and newer (Apple Silicon and Intel), Linux (x86_64, with a PipeWire audio session), and Windows 10 and 11 (64-bit). On macOS, system audio capture uses ScreenCaptureKit, which Apple introduced in macOS 13.
No kernel extension and no System Integrity Protection workaround. Splitwave does install a small userspace audio driver to expose virtual devices — you will be asked for your macOS password once during install, and again every time you add or remove a virtual device, because macOS requires administrator approval for any change to the system audio configuration.
Only the standard macOS permissions for the sources you actually use: microphone access for mic capture, screen recording for system or per-app audio capture, and disk access when you choose a recording destination.
Yes. Add a File Recording node anywhere in your pipeline and Splitwave will write a lossless WAV, FLAC, or AIFF file, or an encoded Opus, MP3, or AAC stream, while the rest of the graph keeps playing back to your speakers, headphones, or virtual outputs.
Yes. Create a virtual output device in Splitwave and pick it as the input device in Logic Pro, Ableton Live, Reaper, GarageBand, or any other DAW. You can also route your DAW master back through Splitwave for live effects.
Splitwave is free and open source under the MIT license. Source code lives on GitHub — you can build it yourself, audit the audio path, or contribute back.