A menu-bar utility for macOS
See every screen, without turning around.
Periphery puts every external display in a floating panel on the Mac in front of you, even over full-screen apps. Connect a projector or conference-room TV and its preview appears automatically.
7 days free · One-time purchase · Family Sharing included

Out of the way until you need it.
Check your slides, speaker notes, or live demo without looking over your shoulder.
Native materials
The panel uses macOS Liquid Glass and follows the system appearance. Light and dark mode work automatically.
Menu bar first
Periphery hides its Dock icon by default and stays in the menu bar. You can show the Dock icon again in Settings.
Ready at login
Launch Periphery at login and have the panel open when an external display connects, so there is nothing to set up in front of the room.
Stops when hidden
Periphery captures only while the panel or full-screen view is open. Hide it and capture stops. Use a lower frame rate when you only need occasional updates.
Your screens stay on your Mac.
Periphery processes every preview on your Mac. It does not upload, record, or save display content. macOS asks for Screen Recording permission before capture begins, and capture stops when you hide the panel. The app is sandboxed, requires no account, and includes no analytics.
Read the privacy policy- Account
- None
- Analytics
- None
- App services
- StoreKit only
- When hidden
- Capture stops
Keep the other screen in view.
Download on the Mac App StoreRequires macOS 26 or later · one external display