The simplest way to close an app

To close an app on a Mac, click the red circle button in the top-left corner of the app's window. That button has an X inside it. The app will shut down when ready.

This works for almost every program you have — Safari, Mail, Slack, Word, or anything else. One click and it's gone. If the app has unsaved work, it will ask you to save before closing.

You can also use the keyboard shortcut Command+Q (hold down the Command key and press Q at the same time). This does the same thing as clicking the red button and works from anywhere in the app. Many people find the keyboard shortcut faster once they get used to it.

Key Takeaways

  • Click the red X button in the top-left corner of any app window to close it when ready, or use Command+Q from your keyboard.
  • Closing an app is different from minimizing it — minimizing hides the window but leaves the app running and using your computer's memory.
  • If an app is frozen and won't close, you can force it to shut down using Command+Option+Esc and then clicking Force Quit.
  • Most apps will warn you before closing if you have unsaved work, so pay attention to those warnings to avoid losing important changes.

The difference between closing and minimizing

Many people confuse closing an app with minimizing it. They are not the same thing. When you minimize an app, you click the yellow button next to the red X, and the window disappears from your screen — but the app is still running in the background.

Closing an app actually shuts it down. The program stops running. It uses no memory. It is completely off until you open it again. If you want the app to stop using your computer's resources, you need to close it, not minimize it. Minimizing is useful when you want to get the window out of your way but plan to come back to the app in a few minutes.

What to do if an app won't close

Sometimes an app freezes or stops responding. The red X button might not work, or Command+Q might do nothing. When this happens, you can force the app to close using Force Quit.

To force quit an app, hold down Command+Option+Esc. A window will appear showing all the apps currently running. Click the app that is frozen, then click the "Force Quit" button. The app will shut down when ready, even if it is not responding.

Force Quit is safe to use. It will not damage your Mac. The only downside is that you will lose any work you have not saved in that app. If you use Force Quit often, it may mean your Mac needs more memory or that certain apps are not working well.

Using the Dock to close apps

The Dock is the row of app icons at the bottom of your screen. You can close an app from the Dock by right-clicking (or Control+clicking) on its icon and selecting "Quit" from the menu that appears.

This is slower than using Command+Q, but it works the same way. Some people find it easier to remember than the keyboard shortcut. The Dock method also lets you see which apps are currently running — apps with a dot underneath their icon are open right now.

Closing multiple apps at once

If you want to close several apps quickly, you can use Command+Q on each one in turn. There is no built-in way to close all open apps at the same time on a Mac.

However, you can use a feature called App Switcher to see all your open apps and close them one by one. Hold down Command and press Tab to cycle through your open apps. When you reach the one you want to close, release the keys, then press Command+Q. This is faster than clicking on each app individually if you have many windows open.

What happens to your work when you close an app

If you close an app without saving your work, that work is lost. Most apps will warn you before closing and ask if you want to save. Pay attention to these warnings — they are there to protect you from losing something important.

Some apps, like Notes or Mail, save your work automatically as you type. Others, like Word or Google Docs, may ask you to save manually. If you are unsure whether an app saves automatically, save your work before closing it. When in doubt, use Command+S to save before you close.

Frequently Asked Questions

Is it bad to close apps on a Mac?

No. Closing apps is normal and healthy. It frees up memory and processing power. You should close apps you are not using, especially if your Mac is running slowly or if you notice the fan running loudly.

What is the difference between closing an app and restarting my Mac?

Closing an app shuts down just that one program. Restarting your Mac shuts down everything and turns the entire computer off and back on. Restarting is much more drastic and takes longer, but it can fix problems that closing apps alone cannot.

Can I close an app without losing my work?

Yes, if you save first. Before you close any app, save your work using Command+S or by clicking File and then Save. Once your work is saved, you can close the app without losing anything.

Why does my Mac ask me to save when I close an app?

The app is warning you that you have unsaved changes. If you click "Don't Save," those changes will be lost forever. Click "Save" to keep your work, or "Cancel" to go back into the app and keep working.

Does closing an app delete it from my Mac?

No. Closing an app just shuts it down for now. The app is still installed on your Mac and will open again the next time you click its icon. To permanently remove an app, you need to uninstall it, which is a separate process.