# Loopback

> Virtual audio device builder that routes and combines audio between apps and inputs

Source: https://optioncmd.com/loopback
Website: https://rogueamoeba.com/loopback/?utm_source=optioncmd
Pricing: Paid
Categories: [Audio & music](https://optioncmd.com/categories/audio-music.md)
Listed: 2026-10-24
Updated: 2026-10-24

Loopback is an audio routing app for Mac from Rogue Amoeba. It combines audio from apps and input devices into virtual devices that any app can use, which is handy for podcasters, streamers, and screencasters.

**Key features:**

- Combine audio from multiple apps and physical devices into one virtual audio device.
- Route audio between channels with a wire-based interface, using up to 64 channels per device.
- Pass audio directly from one app to another with a Pass-Thru device.
- Monitor how a virtual device sounds through other outputs, in whole or in part.
- Adjust the volume of each source, the monitoring level, and the whole device.
- Nest one Loopback device inside another, and toggle parts of a device on or off without deleting them.

Virtual devices show up in any app, including FaceTime, Zoom, Logic, and GarageBand, and Loopback pairs with Audio Hijack. The current version runs on macOS 14.5 through macOS 27. The free download works as a trial with limitations until you enter a license key bought from Rogue Amoeba's store.

## More audio & music apps

- [Logic Pro](https://optioncmd.com/logic-pro.md): Apple's music production app for recording, beat-making, mixing and mastering
- [Audio Hijack](https://optioncmd.com/audio-hijack.md): Record audio from any app, microphone or the whole system, with streaming and local transcription
- [MacWhisper](https://optioncmd.com/macwhisper.md): On-device transcription of audio, video and meetings using Whisper and Parakeet models
- [SoundSource](https://optioncmd.com/soundsource.md): Menu bar audio control with per-app volume, output routing, EQ and AirPlay streaming
- [Spotify](https://optioncmd.com/spotify.md): Music and podcast streaming app, with one account across your phone, TV, car and speakers
- [Fission](https://optioncmd.com/fission.md): Lossless audio editor for trimming, joining, splitting and converting files
- [Ableton Live](https://optioncmd.com/ableton-live.md): Music production app for composing, recording and performing, with MIDI tools and built-in instruments
- [Airfoil](https://optioncmd.com/airfoil.md): Stream any Mac audio to AirPlay, Chromecast, Sonos and Bluetooth speakers in sync
- [Boring Notch](https://optioncmd.com/boring-notch.md): Free, open-source app that turns the MacBook notch into a music player, calendar and file shelf