Live desktop wallpaper
Run the same engine behind your windows as a moving wallpaper. Auto-pauses when your desktop is mostly covered, so it never burns CPU on nothing.
The same playback engine that drives the screensaver can run as your live desktop background. Wallpaper continuity keeps macOS’s Mission Control and lock-screen wallpaper in sync with the playing video, so you never see a stale image when you wake from sleep. Aerial pauses automatically when most of the desktop is covered by windows — configurable threshold, battery-aware, and respects Night Shift.
Native Wallpaper Extension Beta
In the 4.1 beta, Aerial is a native macOS Wallpaper Extension. It appears in System Settings › Wallpaper like a built-in wallpaper, and the video plays as your actual desktop — there’s nothing underneath it. It even keeps playing on the login screen after your Mac wakes from sleep.
On first launch you pick how it behaves: Still, a frame from the current video that updates as scenes change — the way macOS wallpapers normally work — or Live, the video itself with window-aware auto-pause. Switch between the two anytime with the wallpaper Play/Pause button in the Aerial menu bar.
Auto-pause got smarter, too. Settings shows exactly which apps are covering the wallpaper, with live coverage percentages, and you can tell Aerial to ignore the ones that shouldn’t count — like utilities that keep a transparent window over the whole screen. And if you’d rather never stare at the same scene all day, Auto-Advance moves to a new video on a schedule you pick, even while playback is paused.
Requires macOS 26 (Tahoe) or later.