How To Uninstall On Mac

Tips
1

I tried deleting an app on my Mac by dragging it to the Trash, but I’m still seeing leftover files, notifications, and storage being used. I’m not sure which support files, caches, or hidden folders are safe to remove, and I don’t want to break anything important in macOS. Can someone walk me through the right way to completely and safely uninstall apps on a Mac, including any built‑in tools or trusted third‑party options?

2

macOS leaves a lot of support files behind. Dragging to Trash only removes the app in /Applications.

If you want to clean it up safely, do this:

  1. Quit the app and its helpers
    Open Activity Monitor and search the app name or vendor.
    Force quit anything related.

  2. Check these folders in Finder
    Use Go > Go to Folder and type each path:

~/Library/Application Support
~/Library/Preferences
~/Library/Caches
~/Library/LaunchAgents
~/Library/Containers
~/Library/Group Containers
/Library/Application Support
/Library/LaunchAgents
/Library/LaunchDaemons

The tilde means your user folder.
The ones without tilde are system wide.

  1. What to delete
    Search by app name or vendor name in each folder.
    Examples:
    com.devname.appname.plist
    AppName
    VendorName

Delete only folders and files with a clear match to that app.
Do not touch things you do not recognize.
If you are unsure, leave it.

  1. Clear notifications and leftovers
    Notifications:
    ~/Library/Preferences/com.apple.ncprefs.plist
    You can delete that file to reset notification settings.
    Log out and back in.
    This resets all notification prefs though, not only one app.

Check:
~/Library/Application Scripts
~/Library/LaunchAgents for auto start stuff.

  1. Use an uninstaller when the app has one
    Some apps install drivers, kexts, daemons.
    Look in the app menu for “Uninstall” or a separate uninstaller in the dmg.
    For Adobe, antivirus, VPNs, etc, always run their own uninstaller first.

  2. Disk space reality check
    macOS storage view sometimes caches info.
    After deleting files, empty Trash.
    Then restart or run:
    About This Mac > Storage > Manage
    Wait a bit for it to recalc.

  3. Quick checklist for next time
    • Delete app from /Applications
    • Kill related processes
    • Remove:
    ~/Library/Application Support/AppName
    ~/Library/Preferences/com.vendor.app.plist
    ~/Library/Caches/com.vendor.app
    Any matching LaunchAgents / LaunchDaemons
    • Empty Trash
    • Restart

If you want less manual work, tools like AppCleaner remove most of these.
Still, check Library folders if you see weird leftovers.

Make a Time Machine backup before big cleanups so you can restore if you delete the wrong thing.

3

Dragging to Trash is basically “uninstall lite” on macOS. It removes the app bundle but not much else.

@viajeroceleste covered the manual Library safari really well, so instead of rehashing that, here are a few different angles and clarifications:

  1. Use a third‑party uninstaller for most apps
    I know, I know, “just install more software to remove software,” but for regular apps this is honestly the least painful option.

    • Tools like AppCleaner or AppDelete watch what files are associated with an app and pull most of them together.
    • Drag the app into the tool, it shows you all related preferences, caches, etc., and you check/uncheck what to remove.
    • This is much safer than blindly nuking stuff in ~/Library when you’re not sure what belongs to what.

  2. Don’t obsess over every leftover file
    Hot take: hunting every plist and cache is often not worth your time.

    • Most leftovers are tiny preference files or caches measured in KB or a few MB.
    • The big space hogs are usually:
      • App support folders with media or project files
      • Old backups, caches from browsers / creative apps
        Before going into forensic deletion mode, sort ~/Library/Application Support by size and look at the biggest folders. That’s where the actual space goes.

  3. Notifications sticking around
    If you’re still seeing notifications from an app that’s gone:

    • Go to System Settings > Notifications and see if it’s still listed. If it is, turn everything off for it; macOS usually removes it after a reboot or two.
    • I wouldn’t jump straight to deleting com.apple.ncprefs.plist like @viajeroceleste suggested unless you’re okay resetting all notification settings. It works, but it’s a bit of a flamethrower approach.

  4. Menu bar items & login items
    Some apps leave behind launch agents or login items, but before diving into obscure folders:

    • System Settings > General > Login Items
      • Remove anything from the app you thought you deleted.
        This handles a bunch of cases without you touching LaunchAgents or LaunchDaemons at all.

  5. Apps that must use their own uninstaller
    For things like:

    • Antivirus
    • VPNs
    • Adobe stuff
    • Drivers / kernel extensions
      Don’t try to “DIY uninstall” them by deleting files. Use their built‑in uninstaller or official removal tool. Manual removal for those can break networking, printing, or cause weird system behavior.

  6. Reality check on the “storage still used”

    • The “About This Mac > Storage” view is often outdated or misleading and recalc’s slowly.
    • After uninstalling:
      • Empty Trash
      • Restart
      • Wait a few minutes before trusting the new number
        Also, iCloud Drive, Time Machine local snapshots, and Photos can all make it look like nothing changed when you did actually free space.

  7. Safe rule of thumb if you’re nervous
    If you’re not 100% sure a file belongs to that app, don’t delete it. That might sound conservative, but macOS behaves fine with some old prefs lying around. Worst case, they get reused if you reinstall the app later.

Short version:

  • For normal apps: Trash + a tool like AppCleaner + empty Trash + reboot.
  • For system‑level / security / driver apps: official uninstaller only.
  • For lingering notifications & storage views: check Settings and give macOS time to update before assuming nothing was removed.
4

Skip the Library safari for a second; here’s a different angle that fills in some gaps.

  1. Check the right place for space
    A lot of “leftover” size is actually user data, not the app itself.

    • Open Finder
    • Go to your home folder
    • Right‑click Documents, Movies, Music, Pictures, Downloads → Get Info
      Often those dwarf whatever is left from the app. If you were using a video editor, DAW, or game launcher, the bulk is usually project files or game assets, not the executable.

  2. Look for app data outside Library
    Some apps stash stuff in obvious top‑level folders:

    • ~/Movies (video apps)
    • ~/Music or ~/Audio (music / sample libraries)
    • ~/Documents (project folders, configuration exports)
      Delete or archive those if you are done with the app entirely. This frees way more space than hunting every plist.

  3. Use “how big is this mess?” view

    • Open Finder → Go → Computer
    • Select your internal disk → press Cmd+F
    • Click “Kind” filter, set to “Other” → check “File extension”
    • Search by known file types from that app (for example, .logicx, .aegraphic, .game etc.)
      This tells you if the “storage still used” is mostly content files, not hidden support junk.

  4. When I disagree a bit with others
    @viajeroceleste and the other reply lean a bit hard into Library cleaning and third‑party uninstallers. Those work, but I would not make them your first move every time. Mistakes in ~/Library are recoverable most of the time, yet still annoying, and third‑party tools occasionally miss custom data locations. Start with user data and app‑specific folders first, then Library only if needed.

  5. Third‑party uninstallers & the unnamed “How To Uninstall On Mac” angle
    If you go that route, treat any “How To Uninstall On Mac” style tool as a helper, not a magic bullet.
    Pros:

    • Fast, less manual digging
    • Groups related files so you see what is tied to the app
    • Decent for simple apps with standard layouts
      Cons:
    • Can miss big media / project folders the app created elsewhere
    • Sometimes too aggressive with shared components used by multiple apps
    • Adds yet another thing installed that you might one day want to remove

    Use it right after installing an app you are “trying out,” so if you uninstall, it already knows the footprint. For apps you have used for years, still double‑check what it wants to delete.

  6. Fixing “ghost” notifications and hooks the safer way
    Before editing any plist:

    • System Settings → Notifications → turn off for the old app
    • System Settings → General → Login Items → remove anything from that app
    • System Settings → Internet Accounts / Profiles if the app installed an account or profile
      Only if that fails would I consider nuking broader preference files. Here I lean more conservative than some of the earlier advice.

  7. Accept a little cruft
    macOS tolerates some leftover prefs just fine. A 20 KB plist is not worth an hour of detective work. Focus on:

    • Folders measured in hundreds of MB or GB
    • Old archives / backups made by the app
    • Large caches from browsers, creative apps, or game launchers

So the practical workflow I’d use now:
Trash the app → empty Trash → check your home folders for app‑created content → optionally run a “How To Uninstall On Mac” style uninstaller to scoop small leftovers → reboot → give Storage a bit of time to recalc. Only if space still looks wrong do you dive into Library.