Fullscreen your active window and dim every other display, so distractions fade without turning your other screens off.
Requires macOS 14 or later · Free · Notarized by Apple
A tiny, native menu bar app — no Dock icon, no background bloat.
Fullscreen the frontmost window and dim the rest with a single customizable keyboard shortcut.
Adjustable dim intensity and color — as subtle or as strong as you want.
Single Screen detects your Mac's own "Toggle Full Screen" shortcut and suggests a sensible default that won't collide with it.
Exit fullscreen however you like — Esc, the green button, a swipe, Mission Control — and the dim lifts immediately.
Set it once and Single Screen is ready the moment you sign in.
No Dock icon, no window to manage — just a quiet menu bar item.
A tiny menu bar app, a permission explained up front, and a couple of settings -- that's the whole surface area.
Single Screen uses the same Accessibility mechanism as the green fullscreen button — it triggers real native macOS fullscreen, not a fake borderless window. It never reads window content or keystrokes, and never sends any data anywhere.