App Cleaner for Mac: Free Ways to Uninstall Apps and Remove Leftovers
Quick answer: To uninstall an app completely on a Mac, delete the app and then remove the files it left in your Library: preferences, caches, application support, containers and launch agents. You can do this by hand, or use a free app cleaner that finds those files for you. Dragging the app to the Trash alone leaves them behind.
Leftovers are small individually, but years of trying apps adds up to gigabytes. For the manual walkthrough see How to Uninstall Apps on a Mac Completely (Including the Files They Leave Behind).
Free ways to uninstall, compared
| Method | Cost | Removes leftovers? |
|---|---|---|
| Drag to Trash | Free | No |
| Launchpad (hold an icon, click X) | Free | No, and only App Store apps |
| The app's own uninstaller | Free | Usually most of them |
| Manual cleanup in Library | Free | Yes, if you find everything |
| A free app cleaner | Free | Yes |
Where leftovers live
| Folder | What it holds |
|---|---|
| ~/Library/Preferences | Settings files |
| ~/Library/Caches | Cached data |
| ~/Library/Application Support | App data and support files |
| ~/Library/Containers | Sandboxed app data |
| ~/Library/Saved Application State | Window state |
| ~/Library/LaunchAgents | Background helpers that start at login |
Open these in Finder with Go ▸ Go to Folder (⇧⌘G) and look for folders named after the app or its developer. Delete only items you can match to the app you removed.
Use the app's own uninstaller first
Larger apps such as Adobe and Microsoft products ship their own uninstaller or removal steps. Use those first, then check for leftovers.
A free app cleaner
The App Cleaner in MacCove Space is part of the free tier. It removes an app together with the files it scattered across your Library, and flags apps you have not opened in a long time so you can uninstall them. Clean-ups go to the Trash, so you can undo.
Safety tips
Quit the app before uninstalling it.
Do not delete shared folders used by several apps from one developer.
Keep the Trash until you are sure everything works.
FAQs
Is dragging an app to the Trash enough?
It removes the app but not its preferences, caches or support files.
What is the best free app cleaner for Mac?
A tool that shows every file before removing it and sends it to the Trash. Compare the options in CleanMyMac Alternatives: CleanMyMac vs OnyX vs CCleaner vs DaisyDisk vs AppCleaner (2026).
Can app leftovers slow my Mac?
Mostly they waste space. Launch agents left behind can run in the background, so check How to Stop Apps From Opening at Startup on a Mac (Login Items and Background Items).