How to mute your microphone globally on Mac

The simplest method: SeventyMute

Install SeventyMute, pick your keyboard shortcut (⌥⌘M by default) in the settings, then press it anywhere on your Mac: the microphone mutes instantly, even mid-call, full screen, or while sharing your screen. A discreet on-screen indicator and a menu bar dot confirm the state live. Everything happens at the macOS system level (CoreAudio), so the effect is identical in Zoom, Teams, Meet, FaceTime, or any other software.

Download the free SeventyMute trial (7 days, macOS 13+).

Why not just click the mute button in Zoom

• One gesture for every app: no need to learn the specific shortcut of each video app, or to hunt for the on-screen button mid-share.
• Works even without focus: if another window is active, if you're full screen, or sharing a document, the shortcut still mutes the mic.
• A reliable indicator: the menu bar dot always tells the truth about the real system mic state, regardless of what each app displays.

Why no permission is requested

SeventyMute never listens to the sound: it simply flips the mute switch of the default input device, the same property macOS itself uses in its Sound settings. Since nothing is captured or recorded, no Microphone or Accessibility authorization is needed.

Built-in, USB, or Bluetooth microphone

SeventyMute automatically follows macOS's default input device. Whether it's the Mac's built-in mic, a USB mic, or a Bluetooth headset, the shortcut keeps working with no reconfiguration if you switch devices along the way.

Mistakes to avoid

• Muting separately in every app: an easy way to forget, especially when switching apps mid-meeting.
• Using an app that asks for unnecessary permissions: the higher the security risk, the less justified it is for a simple mic mute.
• Forgetting to check the state before speaking: the on-screen indicator and menu bar dot avoid this classic mistake.

Get SeventyMute: 7-day trial, then a lifetime license.