The three ways to close an app on Mac
You can close a Mac application in three ways, and which one you use depends on whether the app is responding. The simplest is to use the keyboard shortcut Command+Q while the app is in focus — this tells the app to shut down cleanly. If that does not work, you can click the red close button in the top-left corner of the window, though this closes only the window, not always the app itself. If the app is frozen or will not respond to either method, you will need to force it to quit using the Force Quit menu.
Most of the time, Command+Q is all you need. But understanding when to use each method — and what happens when you do — keeps you from accidentally losing work or leaving apps running in the background.
Key Takeaways
- Command+Q closes an app completely and is the standard way to shut down any Mac application.
- Clicking the red close button in the top-left corner closes only the window; the app may still run in the background.
- If an app is frozen or unresponsive, use Command+Option+Esc to open Force Quit and select the app to force it to close.
- Force quitting an app will cause you to lose any unsaved work in that application.
- Some apps, like Finder, cannot be force quit because macOS needs them running at all times.
Using Command+Q to quit an app normally
Command+Q is the standard way to close any Mac application. Click on the app window or icon in the Dock to make sure it is in focus, then hold down Command and press Q. The app will shut down, and if you have unsaved work, most apps will ask you whether you want to save before closing.
This method is clean because it gives the app a chance to save its state, close any files it has open, and shut down properly. When you use Command+Q, the app is completely gone — it is not running in the background, and it is not taking up memory.
If you have multiple windows open in the same app, Command+Q closes all of them at once. If you want to close only one window and leave the app running, use Command+W instead, which closes just that window.
The difference between closing a window and closing an app
The red close button in the top-left corner of any window closes that window only. On Mac, closing a window does not always close the app. For example, if you close a Safari window by clicking the red button, Safari keeps running in the background. If you then open Safari again, it remembers your tabs and windows from before.
This matters because a closed window does not mean the app has stopped using your computer's memory and processing power. If you close many windows but never quit the apps, your Mac can slow down over time because multiple apps are still running invisibly.
To see which apps are currently running, look at the Dock at the bottom of your screen. Apps with a white dot underneath their icon are open, even if you cannot see any windows. To close those apps completely, use Command+Q or the Quit option in the app menu.
Force quitting an app that is frozen or not responding
If an app stops responding or becomes frozen, Command+Q will not work. When this happens, use Force Quit. Press Command+Option+Esc together. A window titled "Force Quit Applications" will appear, showing all open apps.
Find the app that is not responding — it will usually have the words "not responding" next to its name in red text. Click on it to select it, then click the "Force Quit" button. The app will close immediately, even if it is in the middle of doing something.
Force quitting is a last resort because it does not give the app a chance to save your work. Any changes you made since you last saved will be lost. But it is the only way to close an app that has completely stopped responding.
When to use Activity Monitor instead
Activity Monitor is another way to force quit an app, and it gives you more information about what is happening on your Mac. Open Activity Monitor by pressing Command+Space, typing "Activity Monitor", and pressing Enter. You will see a list of all running processes.
Find the app you want to close, click on it, then click the X button in the top-left corner of the Activity Monitor window and select "Force Quit". This does the same thing as Command+Option+Esc, but Activity Monitor also shows you how much memory and processing power each app is using. This is useful if your Mac is running slowly and you want to see which apps are consuming the most resources.
For everyday closing, Force Quit (Command+Option+Esc) is faster. Use Activity Monitor when you want to understand what is running on your Mac or when you need to close a background process that does not appear in the Force Quit menu.
Apps that cannot be quit or force quit
Some apps cannot be quit because macOS needs them running at all times. Finder, which manages your files and folders, is the most common example. If you try to force quit Finder, it will close for a moment and then automatically restart.
System apps like Spotlight, the Dock, and the menu bar also cannot be quit. If you try to force quit one of these, your Mac will either restart it immediately or show you an error message saying the process cannot be terminated.
If you are having problems with a system app, restarting your Mac is usually the best solution. This closes everything cleanly and gives your Mac a fresh start.
What to do if an app keeps freezing
If an app freezes regularly, force quitting it temporarily solves the problem, but the real issue is that the app has a bug or is not compatible with your version of macOS. Check the App Store or the app developer's website to see if an update is available. Most updates fix freezing and crashing problems.
If no update is available, try restarting your Mac. Sometimes an app freezes because your Mac is running low on memory or because something in the background is interfering with the app. A restart clears your Mac's memory and stops all background processes, which often fixes freezing issues.
If the app continues to freeze after you update it and restart your Mac, the app may not be compatible with your current version of macOS. You can check the App Store listing or the developer's website to see the minimum macOS version required.
Frequently Asked Questions
Does closing a window close the app?
No. Clicking the red close button closes only that window. The app keeps running in the background. To close the app completely, use Command+Q or go to the app menu and select Quit.
Will I lose my work if I force quit an app?
Yes. Force quitting closes the app immediately without saving. Any changes you made since your last save will be lost. Always try Command+Q first, and use Force Quit only when the app is completely frozen.
Can I close multiple apps at once?
Not with a single command. You can close apps one at a time using Command+Q, or you can use Activity Monitor to force quit several apps in a row. Restarting your Mac closes all apps at once.
What does the white dot under an app icon in the Dock mean?
The white dot means the app is currently running, even if you cannot see any windows open. To stop the app from running, use Command+Q or Force Quit.
Is it bad to force quit apps regularly?
Force quitting occasionally is fine, but if you are force quitting the same app repeatedly, something is wrong. Update the app, restart your Mac, or consider uninstalling and reinstalling it. Regular force quitting usually means the app has a compatibility problem.