Loopback Icon

Cable-free audio routing for Mac

Suddenly, it's easy to pass audio between applications on your Mac. Create virtual audio devices to take the sound from applications and audio input devices, then send it to audio processing applications. Loopback gives you the power of a high-end studio mixing board, right inside your computer!

A Transit System for Your Audio

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Combine Audio Sources

Configuring a virtual audio device from multiple sources is easy. Just add the applications and physical audio devices you want to include to the Audio Sources table to get started.

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Available System-Wide

Your Mac will show Loopback's virtual devices exactly like physical devices. Find them listed among other devices in System Preferences or select them as an input or output in any audio app.

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Send Audio Between Apps

Loopback can also create pass-thru devices, which send audio from one app to another. Set the Loopback device as the output in one app and the input in another to make audio flow directly between the applications.

Great uses for Loopback

Podcast Guest Feature Icon

Play Audio to All Your Podcast Guests

Combine your mic with audio sources like iTunes or QuickTime Player, then select your Loopback device as your source in Skype. Presto! Your guests all hear both your voice and your audio add-ons.

Gameplay Recording Feature Icon

Record Gameplay Videos

Making gameplay videos with great audio doesn't have to be difficult. If you're using a device like Elgato's Game Capture hardware and you want to record both your microphone and the game's audio at once, Loopback can assist!

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Combine Hardware Devices

Apps like GarageBand, Logic, and Ableton Live only record from a single audio device at once. Thankfully, they offer recording from many channels. With Loopback, you can combine multiple input devices into one virtual device for easy recording.

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Create Top-Notch Screencasts

Screen recorders, including QuickTime Player, allow you to include your mic's audio. Some allow recording of system audio instead, but neither option is ideal. Create a virtual device that grabs just the mic and the app’s audio to get exactly the audio you want.

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Pairs Well With Audio Hijack

If you set a simple (pass-thru) device as the output on the end of any Audio Hijack chain, you can then select it as the input source in any app you want to receive that audio.

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So Much More…

With Loopback, you gain incredible power and control over how audio is routed around your Mac and between applications. We can't wait to hear about the incredible new uses you find for it!

More Great Features

Works With Any Application

Make a virtual audio device with audio from the applications on your Mac, including production apps like Logic or Reason, as well as simple audio players, like iTunes or QuickTime.

Works With Any Input Device

Pull audio from the physical audio devices connected to your Mac. Whether you’ve got simple USB microphones, or high-end studio mixers, Loopback can access it all.

Combine Apps and Physical Devices

Of course, you can create a virtual audio device that includes audio from both apps and physical audio devices.

Multichannel Audio

Your virtual audio devices can be configured to have up to 32 channels, providing tremendous power.

Custom Channel Mapping

By default, Loopback sets up channel mapping automatically. If you want to manually configure things, though, you’ve got powerful options!


Nested Devices

New in Loopback 1.1, you can now nest one Loopback device inside another, allowing for easier configuration, as well as even more power and control.

Loopback Icon

Get Loopback

Free Download

Note: Before purchase, the quality of audio passing through Loopback's virtual devices will be degraded after 20 minutes.

Loopback 1.2.1
Released September 7, 2018 (Release Notes)
For MacOS 10.11 or higher

What People Are Saying About Loopback

MacWorld Logo
“Loopback fits the bill nicely as an elegant way to better control audio routing.”

“Loopback is phenomenal! This is essential for what I am doing with interactive instructional webinars. Helped me interface Sternberg UR44 to Skype! :)”

Jonathan B.

“Loopback by @RogueAmoeba is the missing link between apps that play and record audio.”

Tony O.

“Just recorded @GigGabPodcast with @RogueAmoeba’s new Loopback in the workflow, replacing SoundFlower. Worked *brilliantly*!”

Dave Hamilton

“It's fixed my entire workflow, no exaggeration”

Alex A.

“This could be one of the fastest no-brainer purchases in a while.”

Matt W.

Daring Fireball Logo “[F]or those who need it, it’s a godsend. I can see a lot of uses for this for screencasters and podcasters.”

John Gruber, Daring Fireball

“Do they employ wizards over there at @RogueAmoeba? Wow.”


“[Loopback] has been the missing half to @RogueAmoeba's equally brilliant Audio Hijack 3. A must for anyone serious about podcasting.”

East Midlands Physicians

“Loopback’s virtual devices are an essential part of my setup.…In my podcast toolkit: Audio Hijack, Fission and Loopback.”

Adam Curry

“Loopback makes the process so easy for the casual user that still has complex setups in mind…[I]t seems like it’s just another great piece of software that will always be part of my audio toolbox.”

Mark D.

“Wonderful! Podcasters/Webcasters have needed this vital audio pass-through for some time. Thanks!”


Mac Power Users Logo
“This stuff is just unheard of. I don't know what kind of black magic they've put together to make it work, but it's pretty amazing.”

“Loopback from @RogueAmoeba is more powerful, very nice and user-friendly version of Soundflower. Insta-buy.”

Kenn R.

“I've needed something like this for years!”

Steve D.

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