Mac hot corners: the complete setup guide (and best uses)
Hot corners are one of the oldest tricks on the Mac and still one of the most underused. Flick the pointer into a corner of the screen and something happens — Mission Control opens, the desktop clears, the screen locks. No app, no menu, no shortcut to memorize. This guide covers how to turn Mac hot corners on, what each option does, the modifier-key trick that stops accidental triggers, and — honestly — where a keyboard shortcut serves you better.
How to set up hot corners on a Mac
On macOS Tahoe (26) the setting moved, so here's the current path:
- Open System Settings.
- Click Desktop & Dock in the sidebar.
- Scroll to the very bottom and click Hot Corners…
- You'll see four dropdown menus, one per screen corner. Pick an action for any corner you want to use, then click OK.
That's it. The change takes effect immediately — move your pointer to that corner and the action fires. To turn a corner off, set its dropdown back to the blank "–" entry.
Every hot corner option, explained
Each corner can trigger one of the following. Most are about seeing your windows or hiding them fast:
- Mission Control — zoom out to every open window and Space. The quickest way to find a window when you have a lot open.
- Application Windows — App Exposé: show just the current app's windows spread out. Useful when one app (a browser, a design tool) owns a dozen windows.
- Desktop — sweep every window aside to reveal the desktop and its files. Great if you actually keep things on the desktop; jarring if you don't.
- Notification Center — slide in the widget-and-notification panel from the right.
- Apps — open the applications overview. On Tahoe this corner is labelled Apps (the old Launchpad grid was replaced by the new Apps view in macOS 26); on older macOS versions the same corner reads Launchpad.
- Quick Note — start a new note in the Notes app from anywhere.
- Start Screen Saver / Disable Screen Saver — force the screen saver on, or keep it from starting (handy during a presentation).
- Put Display to Sleep — blank the screen without sleeping the Mac.
- Lock Screen — jump straight to the lock screen when you step away.
The modifier-key trick nobody uses
The single biggest complaint about hot corners is accidental triggers: you reach for the menu bar or a scroll bar, clip the corner, and Mission Control fires when you didn't want it. The fix is built in and almost nobody turns it on.
While a corner's dropdown menu is open, hold a modifier key — Command, Option, Shift, Control, or a combination — then pick the action. The menu shows the modifier symbol next to your choice. Now the corner only fires when you're holding that key as you hit it. A bare mouse-slip does nothing.
Two things worth knowing:
- You have to hold the modifier before the pointer reaches the corner, not after.
- Each corner gets one action and one modifier combo — you can't bind "⌘ + corner does X, ⇧ + corner does Y" to the same corner.
If you've ever turned hot corners off because they were too trigger-happy, this is the setting that makes them usable again. I put Lock Screen on a corner with ⌘ held, so it never locks by accident but is one deliberate flick away.
Best uses for hot corners
Hot corners shine for actions you do occasionally and don't want to memorize a shortcut for. The ones that earn their place for most people:
- Bottom corner → Lock Screen (with a modifier) — faster than Control-Command-Q when you get up.
- A corner → Mission Control — a mouse-friendly way to eyeball everything that's open.
- A corner → Desktop — instant "get everything out of the way" if you work off the desktop.
- A corner → Start Screen Saver — a privacy flick before you walk away from a shared space.
Assign at most two or three. Every corner you claim is a corner you have to be careful near, so leave one or two free.
Where keyboard shortcuts beat hot corners
Hot corners are mouse gestures. That makes them great for set it and forget it actions and poor for anything you do dozens of times an hour, because every trigger means moving the pointer to a specific pixel. Compare:
| Action | Hot corner | Keyboard |
|---|---|---|
| Open Mission Control | Flick to corner | Control-Up |
| App Exposé | Flick to corner | Control-Down |
| Lock screen | Flick + modifier | Control-Command-Q |
| Show desktop | Flick to corner | Fn-H / F11 |
| Switch to a specific window | — | (needs a switcher) |
| Place a window precisely | — | (needs a tiler) |
Notice the bottom two rows: the two things you do most — getting to the right window and putting a window where you want it — aren't hot corner actions at all. A corner can show you the pile of windows, but it can't drop you onto the one you want or size it to half the screen.
That's the honest line on hot corners: they're a fine ambient shortcut for a handful of system actions, and no substitute for the keyboard when window handling is a minute-to-minute part of your work. For the navigate job, Let's Switch flips through your most-recently-used windows with Option-Tab — the exact window, not just the app — so you never fan out Mission Control to hunt. For the place job, Let's Tile snaps the active window into a visible grid in a couple of keystrokes. Both are keyboard-first, run in the menu bar, and are pay-once with no subscription — the kind of tools you leave on forever. Hot corners handle the once-in-a-while; the keyboard handles the constant.
Frequently asked questions
Where are hot corners in macOS Tahoe? System Settings → Desktop & Dock → scroll to the bottom → Hot Corners…. Earlier macOS versions put it under System Preferences → Mission Control → Hot Corners.
Why does my hot corner keep firing by accident? You've assigned an action without a modifier. Reopen Hot Corners, hold Command (or another key) while choosing the action, and the corner will only trigger while that key is held.
Can I set two actions on one corner? No. Each corner takes a single action and a single modifier combination. Use different corners for different actions.
Do hot corners work with an external display? Yes — each display's own corners are live. On a multi-monitor setup that's more corners to be careful near, so modifier keys help even more.
What happened to Launchpad? macOS Tahoe replaced the Launchpad grid with the new Apps view; the hot corner that used to say "Launchpad" now reads Apps and opens that overview.
Hot corners are a two-minute setup that quietly saves you a reach for a menu several times a day. Turn on the modifier trick, claim a corner or two, and leave the high-frequency window work to the keyboard. See the rest of our Mac productivity guides for the keyboard side of that workflow.