Loopback Alternatives for Windows
Loopback is not available for Windows but there are some alternatives that runs on Windows with similar functionality. The most popular Windows alternative is 
VB-Audio VoiceMeeter, which is free. If that doesn't suit you, our users have ranked more than 10 alternatives to Loopback and seven of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to Loopback are 
JACK Audio Connection Kit (Free, Open Source), 
VB-Audio Virtual Cable (Freemium), 
Virtual Audio Cable (Paid) and 
Dante Via (Paid).
- VoiceMeeter is able to mix audio sources coming from audio devices as well as from audio applications.
- Sophisticated real-time, low latency routing of audio and MIDI data between apps.
- Free • Open Source
- Mac
- Windows
- Linux
ubster super lite and opensource, also paying attention to latnecy - Connect Audio Applications together with a Virtual Audio Device.
- Freemium
- Mac
- Windows
IanDorfman Though only available on Windows, VB-Audio Virtual Cable offers equivalent functionality to what Loopback offers macOS, with support for audio signal routing and passthrough, recording, and multichannel support. - Virtual Audio Cable is the definitive audio routing tool for Windows that lets you redirect audio streams between applications and devices on your computer.
- Dante Via is easy-to-use software that routes audio, allowing applications and devices to be networked and interconnected using the Dante audio over IP solution.
- Total Recorder is a multi-purpose audio and video recording software program with a wide variety of editing and sound processing capabilities.
- Routes Windows application audio to and from your digital audio workstation software.