Virtual Mixer, Cable-Free Audio routing for Mac

Completely Free

GroundControl Cube is now replaced with CASTER Free version


Requires macOS 10.14 or newer

integrates with


The all in one
Cable Free Audio router for Mac

The most powerful audio mixing board for content creators.

Combine multiple audio sources of any kind: applications, microphones, audio interfaces and more. Mix and stream to your favorite streaming app: Twitch, OBS, StreamLabs, Zoom, FaceTime etc.

Who is CASTER for

Content Creators

Create and stream with ease . CASTER will take care of all the audio routing, mixing and recording for you.


Stream your gameplay. Blend your voice, your game sound and audio effects- all in one place.

Working from Home

Organize your work setup. Manage all audio sources from one place. CASTER will make your voice sound better.

E- Lessons Instructors

Combine your lecture with other audio sources. For high quality sound and interactive lessons.

Start your free, full-feature, 14-day trial.
(No credit card required)

Use CASTER for FREE FOREVER or upgrade to CASTER Live after the trial is over.

See feature comparison for more details

Free for CASTER users

The easiest way to bring broadcast-quality sound to your voice

Voice Radio – will instantly enhance your voice and make it radio ready sound. Works perfectly on all types of microphones.

Voice Purity – Extremely high-fidelity noise reduction for vocals. Lightning-fast results – clean vocals with one knob in real time. Powered by a groundbreaking Neural Networks technology.

Perfect Noise Reduction Solution For Content Creators.

Play live sounds

Soundboard Play sounds on your live stream, online games and chat apps.

Play intros, sound effects, alerts, music, and more.

Soundboard allows you to instantly play different sounds to everyone with multiple playback options.

You can even set up your own samples.

Useful for podcasting, backing tracks, and streaming. But also for fun casual calls and video conferences.

Organize OBS Audio:
Separate Game Audio, Discord, Music in OBS.

Send each audio source separately into OBS – such as Spotify, Discord, YouTube, Game audio or any other desktop audio source. 

With our virtual devices, you can pass audio from one application to another.

sperate audio to obs tracks
GroundControl Caster MIDI control

Control of your audio is right at your fingertips.

Use any gear you want to control your audio: MIDI controller, Stream Deck, knobs, faders, buttons, computer keyboard – all can be mapped to control CASTER.

Support multiple audio devices of any kind.

Connect up to 6 audio devices and microphones of any kind and brand.

CASTER supports all types of microphones, headsets, headphones, and audio interfaces.

GroundControl Caster Live Dark mode

Per-application volume control

Control the volume level for all running applications on your Mac.

Set the volume high for a movie or game you’re playing, while setting the volume low for your alerts or notifications.

GroundControl Caster Live

Record your Mac audio:



Record any audio on your mac. Capture an individual application audio, physical audio inputs or your entire system sound.

Grab web and app audio, record Zoom sessions, Skype conversation, your Gameplay and more.

Add your favourite Plug-ins.

Audio Processing is cool, you can use tons of FREE plug-ins.

Insert plug-ins into CASTER tracks to make your voice sound radio ready or use voice modifier plug-ins to sound like anything else, a robot, demon, woman, man etc.

Use Equaliser, Compressor, Expander/Gate, Reverb, Chorus and so much more.

Choose your favorite display setting


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$ 0 FREE
  • Soundboard
  • Sample packs
  • Recording
  • NDI support
  • AU plugins support
  • Direct To / Out
  • GroundControl devices
  • Sticky track
  • Light, Dark modes
  • Hotkeys
  • MIDI control
  • 1 Application track
  • Input / Microphone tracks


Enter your description
$ 49
One time purchase
  • Soundboard
  • Sample packs
  • Recording
  • NDI support
  • AU plugins support
  • Direct To / Out
  • GroundControl devices
  • Sticky track
  • Light, Dark mode
  • Hotkeys
  • MIDI control
  • 8 Application tracks
  • Input / Microphone tracks

Upgrade to CASTER Live at any time, no risk, no credit card required!

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