How to Force Quit an App on Mac (5 Ways)

What Force Quit Actually Does

When you quit an app normally with Command + Q, macOS asks the app to shut down gracefully — save your work, close files, and exit cleanly. A force quit skips all of that. It tells the operating system to terminate the app immediately, whether the app is ready or not. This is the right tool when an app has stopped responding entirely and the polite request to quit is being ignored.

The trade-off is that any unsaved work in that app is lost, because the app never gets a chance to save. That is why force quit is a last resort rather than a first move: it is the equivalent of pulling the plug on a single app. Used correctly, though, it is completely safe for the rest of your system — force quitting one frozen app does not affect your other running apps or macOS itself.

Method 1: The Force Quit Keyboard Shortcut

The fastest way to force quit is the dedicated keyboard shortcut that opens the Force Quit Applications window. It works even when an app has taken over the screen or the Dock is unresponsive.

1. 1
   Press Option + Command + Esc. Hold all three keys together. The Force Quit Applications window appears on top of everything else.
2. 2
   Select the frozen app. Look through the list — an app that is stuck usually shows "(not responding)" in red next to its name.
3. 3
   Click Force Quit. Press the button in the lower-right corner and confirm. The app closes immediately.

Method 2: The Apple Menu

If you can still reach the menu bar, the Apple menu offers a force quit option without any keyboard shortcut to remember. Click the Apple menu in the top-left corner of the screen and choose Force Quit. This opens the same Force Quit Applications window described above, where you can select the frozen app and terminate it.

This method is handy when only one app is misbehaving and the rest of your Mac — including the menu bar — is working normally. It is the most discoverable option for anyone who does not want to memorize shortcuts, and it does exactly the same thing under the hood.

Method 3: Force Quit From the Dock

The Dock provides a quick, targeted way to force quit a single app. Find the frozen app's icon in the Dock, then hold the Option key and right-click (or Control-click) the icon. The normal "Quit" option in the menu changes to Force Quit. Click it to terminate the app right away.

This is the most direct method when you know exactly which app is stuck and its icon is visible in the Dock. There is no window to open and no list to scroll — you go straight from the icon to force quit in two clicks. If the app is not responding, you may sometimes see the Force Quit option appear even without holding Option, because macOS has already detected the hang.

Method 4: Activity Monitor

Activity Monitor is the built-in tool for inspecting everything running on your Mac, and it can force quit not just apps but any process — including background processes and helpers that do not appear in the standard Force Quit window. This makes it the go-to option when a hidden process is the real problem.

1. 1
   Open Activity Monitor. Find it in Applications > Utilities, or press Command + Space and type "Activity Monitor".
2. 2
   Find the process. Use the search box in the top-right corner to type the app's name, or sort by the CPU column to spot a process that is stuck consuming resources.
3. 3
   Select it and click the stop button. Highlight the process and click the octagonal X (Stop) button in the toolbar.
4. 4
   Choose Force Quit. In the dialog that appears, click Force Quit to terminate the process immediately. Use the gentler "Quit" option first if you have unsaved work and there is any chance the app will respond.

Method 5: Terminal

For power users, the command line is the most forceful option of all. Open Terminal from Applications > Utilities and use the killall command followed by the app's name. For example, killall Safari terminates every process named Safari. If that does not work, you can find the app's process ID with ps aux | grep AppName and then run kill -9 followed by that ID to force an immediate, unconditional termination.

The kill -9 signal cannot be caught or ignored by the app, which is why it works when everything else fails — but it is also the bluntest instrument, giving the app zero chance to clean up. Reserve it for genuinely stuck processes. Terminal is especially useful over a remote SSH connection, or when the graphical interface itself has become unresponsive and you cannot reach the Force Quit window.

What to Do When Force Quit Is Not Working

Occasionally an app is so deeply stuck that even force quit does nothing, or the entire system becomes unresponsive. Work through these steps in order:

• Try Terminal's kill -9. If the graphical Force Quit window fails, the command line can often still terminate a process that the GUI cannot reach.
• Wait a minute. Sometimes an app that appears frozen is actually finishing a heavy operation. Give it 60 seconds before assuming it is truly dead.
• Log out and back in. Choose Log Out from the Apple menu. This closes all your apps and can clear a stuck one without a full restart.
• Restart the Mac. If nothing responds, choose Restart from the Apple menu. As a true last resort, hold the power button for about ten seconds to force a shutdown, then power back on.

If a specific app freezes repeatedly, the underlying cause is often a resource shortage — a Mac low on free memory or disk space forces apps into slow, swap-heavy behavior that looks like a freeze. Keeping your Mac clean and giving it headroom is the best long-term way to stop needing force quit in the first place.