How to Delete a Desktop (Space) on Mac

Spaces multiply quietly — a desktop you added for one project, a full-screen app you forgot about — until swiping between them feels like a commute. Deleting them takes seconds in Mission Control, nothing gets closed in the process, and there are only two things to know: where the windows go, and why new Spaces keep appearing.

Delete a desktop from Mission Control

1. Enter Mission Control: press Ctrl + ↑, tap the Mission Control key (F3), or swipe up with three or four fingers on the trackpad.
2. Move the pointer to the top of the screen — the Spaces bar expands into full thumbnails.
3. Hover over the desktop you want to remove. After a moment, an ✕ appears in its top-left corner.
4. Click the ✕. The Space vanishes instantly.

Speed tip: hold Option while the Spaces bar is open and the ✕ appears on every deletable Space immediately — no hovering. You can clear five stale desktops in five clicks. This works the same on macOS 13 Ventura, 14 Sonoma, and 15 Sequoia. Note you can't delete your last remaining desktop; there's always at least one.

Where the windows go

Deleting a Space closes nothing. Any windows living there slide over to another desktop — you'll find them piled on the neighboring Space, exactly as they were. Apps keep running, unsaved documents stay unsaved-but-open. The only thing you lose is the organizational bucket, plus any app-to-Space assignments pointing at the deleted desktop (those quietly reset).

Full-screen apps are Spaces too

Those app-named thumbnails in the Spaces bar — Safari, Mail, whatever you've made full screen — are each their own Space, and they're often the real reason the bar feels crowded. You don't delete them with an ✕; you take the app out of full screen:

• In Mission Control, hover the full-screen thumbnail and click the arrows icon that appears — the app returns to a window and its Space evaporates.
• Or switch to the app and click the green button (or press fn + F in many apps) to leave full screen.
• Quitting the app removes its Space as well.

Two windows in Split View work the same way — separating them dissolves that shared Space.

Why Spaces keep coming back

macOS never re-adds a plain desktop on its own. New Spaces appear because something creates them:

• Making any app full screen creates a Space — the most common source by far.
• Reopened sessions: if apps restore their windows at login and some were full screen, their Spaces come back with them. Quit full-screen apps windowless, or take them out of full screen before quitting.
• Accidental creation: in Mission Control, dragging a window to the top-right corner or clicking the + spawns a fresh desktop. Easy to do without noticing mid-drag.

While you're pruning, one related setting is worth a look: System Settings → Desktop & Dock → Automatically rearrange Spaces based on most recent use. Turning it off keeps your surviving desktops in a fixed order, so Desktop 2 is always Desktop 2.

Prune to a number that earns its keep

Instead of deleting Spaces ad hoc, decide how many you actually use and hold the line. Two or three desktops with fixed roles — communication, focused work, everything else — beat seven that accumulated by accident, because Ctrl + 1/2/3 jumps (enable them in Keyboard → Keyboard Shortcuts → Mission Control) only become muscle memory when each number always means the same thing. You can also drag thumbnails left and right in the Spaces bar to reorder the survivors. A monthly thirty-second sweep with Option held in Mission Control keeps the bar honest.