The three ways to uninstall an app on Mac
Most Mac applications can be removed in one of three ways: dragging the app to the Trash, using the app's own uninstaller, or removing it through System Settings. Which method works depends on how the app was installed and whether it left files scattered across your Mac beyond the main application folder.
The simplest route — dragging an app to Trash — works for most applications you downloaded from the App Store or installed as a standalone download. But some apps leave behind preference files, cache data, and support folders that stay on your Mac even after you delete the main application. For a truly clean removal, you may need to hunt down these leftover files or use the app's built-in uninstaller if it has one.
Understanding which method to use saves you from leaving behind gigabytes of unused data or, in rare cases, breaking other apps that depend on shared files the first app installed.
Key Takeaways
- Dragging an app to Trash removes the main application but often leaves behind preference files and cache data in your Library folder.
- Apps installed through the Mac App Store can be uninstalled directly from Launchpad or Applications folder, and System Settings will remove associated files automatically.
- Some applications come with their own uninstaller program that removes the app and its related files in one step.
- Leftover preference files and cache folders are usually harmless but take up storage space; you can find and delete them manually in your Library folder if you want a complete removal.
Uninstalling an app by dragging it to Trash
Open Finder and navigate to Applications. Find the app you want to remove, right-click it, and select "Move to Trash." This immediately removes the main application from your Mac and it will no longer appear in Spotlight search or Launchpad.
This method works for nearly all downloaded applications and is the fastest way to remove an app you no longer use. However, it does not remove the app's preference files, cache data, or support folders — these remain in your Library folder and continue to take up storage space. For most users this is fine; the leftover files are small and cause no problems. But if you want to free up every bit of space or completely erase all traces of an app, you will need to delete these files separately.
Using an app's built-in uninstaller
Some applications, particularly larger ones like Adobe Creative Suite or Microsoft Office, come with their own uninstaller program. Look inside the Applications folder for a folder with the app's name; inside you may find an "Uninstall" or "Uninstaller" application. Double-click it and follow the prompts to remove the app and its associated files in one step.
This method is cleaner than dragging to Trash because the uninstaller knows exactly which files the app created and removes them all. Check the app's documentation or website if you are unsure whether an uninstaller exists — the developer usually mentions it in the installation instructions or support section.
Removing apps installed from the Mac App Store
If you downloaded the app through the Mac App Store, you can uninstall it directly from Launchpad. Open Launchpad, find the app, and click and hold on its icon until a menu appears. Select the X button or "Remove App" option, then confirm the removal. The app and most of its associated files will be deleted automatically.
Alternatively, open System Settings, go to General, then Apps, find the app in the list, and click the Remove button. This method ensures that System Settings removes not just the app but also any login items or background processes it registered. Apps installed through the App Store leave fewer leftover files than independently downloaded apps, so this method is usually sufficient for a complete removal.
Finding and deleting leftover preference files
After you delete an app, its preference files and cache folders remain in your Library folder. These files are hidden by default, so you need to show hidden files first. Open Finder, press Command + Shift + Period (the period key) to reveal hidden files, then navigate to your home folder and open the Library folder.
Look for folders named after the app or its developer — for example, an app called "Transmit" might have a folder called "com.panic.Transmit" or simply "Transmit Support." You can also check the Caches, Preferences, and Application Support subfolders within Library. Drag any folders related to the app you removed to Trash. Be careful not to delete files from apps you still use; if you are unsure whether a file belongs to the app you removed, leave it alone.
Removing these files is optional and only necessary if you want to reclaim storage space or ensure no data from the app remains on your Mac. For most users, leaving them behind causes no problems.
What to do if an app will not uninstall
If an app is locked or will not move to Trash, it may be running in the background. Open Activity Monitor (search for it in Spotlight), find the app in the list, select it, and click the X button to force it to quit. Then try dragging it to Trash again.
If the app still will not delete, it may require administrator permission. Right-click the app, select "Get Info," and check whether "Locked" is checked at the bottom of the window. If it is, uncheck it and try moving the app to Trash again. Some apps installed system-wide or as part of a larger package may require you to use their official uninstaller or contact the developer for removal instructions.
When to use third-party uninstaller apps
Third-party uninstaller applications like AppCleaner or CleanMyMac promise to find and remove all traces of an app, including hidden preference files and cache data. These tools can be useful if you want a completely clean removal without manually hunting through your Library folder, but they are not necessary for most users.
Be cautious with third-party uninstallers that also offer cleaning, optimization, or security features — these often make claims about improving Mac performance that are not supported by evidence. Stick to uninstallers that focus solely on removing apps and their associated files. If you choose to use one, download it from the developer's official website or the Mac App Store rather than from third-party download sites.
Frequently Asked Questions
Does moving an app to Trash actually delete it?
Moving an app to Trash removes it from your Applications folder and stops it from running, but the app stays in your Trash bin until you empty the Trash. To permanently delete it, open Trash, find the app, and either right-click and select "Delete Immediately" or empty the entire Trash bin. Until you do this, you can recover the app by dragging it back out of Trash.
Will uninstalling an app delete my files created with that app?
No. Uninstalling an app removes only the application itself and its support files, not documents you created with it. A Word document, image file, or spreadsheet you made will remain on your Mac in whatever folder you saved it. You can open these files with a different application if you no longer have the original app installed.
What happens if I delete an app's preference files but then reinstall the app?
The app will recreate its preference files the next time it runs, so deleting them beforehand causes no problems. This is actually useful if an app is behaving strangely — deleting its preferences and cache can sometimes fix bugs or crashes by forcing the app to start fresh.
Can I uninstall built-in Mac apps like Mail or Safari?
Built-in apps that come with macOS cannot be uninstalled through normal methods, and Apple does not support removing them. However, you can hide them from Launchpad or remove them from your Dock. If you want to use a different email client or web browser, simply install the alternative app and set it as your default.
How much storage space do leftover preference files usually take up?
Most app preference files and cache folders are small — typically a few megabytes each. Even if you have uninstalled dozens of apps, the leftover files rarely add up to more than a few hundred megabytes. Deleting them is worth doing if you are running low on storage, but they are not usually a significant concern.