MuteKey

Global keyboard shortcuts for microphone and camera in Microsoft Teams, Slack, and Zoom — right from your Mac menu bar.

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What it does

MuteKey sits in your menu bar and lets you mute/unmute your microphone and toggle your camera with a single keystroke — no matter which app is in the foreground. Works across Teams, Slack Huddles, and Zoom simultaneously.

• Global shortcuts — work from any app, at any time
• Smart status display — colored pill icon shows your current mic/camera state in real time
• Multi-call aware — handles multiple active calls at once
• Automatic updates — built-in updater via Sparkle

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Supported apps

App	Microphone	Camera
Microsoft Teams (Enterprise)	✅ Real status via WebSocket API	✅ Real status via WebSocket API
Microsoft Teams (Personal)	✅ Keyboard injection	✅ Keyboard injection
Slack Huddle	✅ Keyboard injection	— Not supported by Slack
Zoom	✅ Real status via Accessibility API	✅ Real status via Accessibility API

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Requirements

• macOS 15.0 or later
• Microsoft Teams, Slack, or Zoom installed

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Installation

1. Download the latest MuteKey.dmg from the Releases page
2. Open the DMG and drag MuteKey.app to your /Applications folder
3. Launch MuteKey

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Setup

Accessibility Permission

MuteKey needs Accessibility access to send keyboard shortcuts to Teams, Slack, and Zoom. macOS will prompt you automatically on first launch.

Microsoft Teams (Enterprise)

For real-time mic/camera status in Teams, enable the third-party app API once:

Teams → Settings → Privacy → enable "Third-party app API"

MuteKey connects automatically when your next meeting starts.

Keyboard Shortcuts

Default shortcuts:

• Microphone: F19
• Camera: F16

Both can be customized in Settings → Keyboard Shortcuts.

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Menu bar icon

State	Icon
No active meeting	Monochrome icon (adapts to Light/Dark Mode)
Active Teams or Zoom meeting	Red/green pill showing real mic and camera state
Active Slack Huddle or Personal Teams	Blue pill
Multiple calls active	Blue pill with warning

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Building from source

Requires Xcode 16+ and macOS 15 SDK.

git clone https://github.com/BenZackBumm/MuteKey.git
cd MuteKey
open MuteKey.xcodeproj

Dependencies are resolved automatically via Swift Package Manager (KeyboardShortcuts, Sparkle).

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Credits

• KeyboardShortcuts — Sindre Sorhus
• Sparkle — Sparkle Project

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License

MIT License — see LICENSE for details.
Copyright © 2026 Benjamin Krammer