Lunar
Lunar is a macOS display utility that lets you control external monitor brightness, contrast, inputs, and adaptive lighting from your Mac.
What is Lunar?
Lunar is a macOS utility for managing external displays and matching them more closely to how Mac users expect brightness controls to work. It helps people with desktop monitor setups adjust hardware brightness, contrast, volume, and input sources directly from the keyboard or menu bar instead of relying on monitor buttons. The app also supports adaptive brightness features for external monitors, including syncing changes with a MacBook display and reacting to ambient light in supported setups. For multi-monitor users, Lunar includes tools for turning displays off temporarily, switching inputs, and creating automations with shortcuts and presets. It is designed for common workflows such as home offices, desk setups with multiple screens, and laptops connected to external monitors. Lunar is published by THE LOW-TECH GUYS SRL and runs on macOS.
Key features
- Control external monitor brightness and contrast from your Mac
- Adjust display volume and switch monitor inputs with shortcuts
- Sync external monitor brightness with your MacBook display
- Use adaptive brightness based on ambient light in supported setups
- Turn selected displays off temporarily without disconnecting them
- Create monitor presets and automations with macOS Shortcuts
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Safety overview
Status: Mostly safe
Lunar is legitimate display-control software for macOS. To manage monitors fully, it may request access or use low-level display controls that are normal for brightness, input, and automation features. Those capabilities can change monitor settings or turn screens off temporarily, so it is best to install it only if you want those functions and review any permissions you grant in macOS settings.
Recommendation: Keep Lunar if you use external monitors and want easier brightness control, input switching, or adaptive display behavior. If you no longer use it, you can remove it, but its monitor shortcuts, presets, and automation features will stop working.
Common paths
/Applications/Lunar.app
Cache paths
~/Library/Caches/fyi.lunar.Lunar
Support paths
~/Library/Application Support/Lunar
Preference paths
~/Library/Preferences/fyi.lunar.Lunar.plist
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