JACK is a professional sound server daemon that provides real-time low latency connections for both audio and MIDI data between applications that implement its API. The API can be used through either JACK1 or JACK2.

There are many alternatives to Loopback for Mac if you are looking for a replacement. The best Mac Audio Router alternative is JACK Audio Connection Kit, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Loopback and ten of them are Audio Routers available for Mac so hopefully you can find a suitable replacement. Other interesting Mac Audio Router alternatives to Loopback are BlackHole Audio Loopback Driver, VB-Audio Virtual Cable, Soundflower and SoundDesk.
JACK is a professional sound server daemon that provides real-time low latency connections for both audio and MIDI data between applications that implement its API. The API can be used through either JACK1 or JACK2.

BlackHole is a modern macOS virtual audio driver that allows applications to pass audio to other applications with zero additional latency.

VB-Audio CABLE is a Windows Audio Driver working as a Virtual Audio Cable. After installing the VB-CABLE driver, a new playback device appears in the audio device list and can be set as default device. VB-CABLE can be set as the default device, just like any regular audio device.


Soundflower is a Mac OS X system extension that allows applications to pass audio to other applications. Soundflower is easy to use, it simply presents itself as an audio device, allowing any audio application to send and receive audio with no other support needed.





Audio routing software seamlessly connects applications to the Dante network, transforming PC and Mac inputs and outputs into sharable network resources, enabling integration with professional Dante gear and inter-device audio sharing through Dante audio over IP solutions.



Multi-function creative suite for Mac and Windows including direct-routing with AAX, VST, and AU plugins, high-quality browser based sessions for music and video collaboration, a virtual remote-production studio, desktop routing with virtual drivers, and much more.




The SoundDesk Virtual Devices are connectors that you can use to route audio across apps.




GroundControl virtual audio drivers allow applications to pass audio to other applications with zero latency.


Record system audio on macOS — appears as a virtual input device in any app and as a VST3/AU plugin in any DAW. One-time purchase, no subscription.




super lite and opensource, also paying attention to latnecy