TidyMacApplication Support, Containers and Group Containers in ~/Library hold each app’s settings and saved data, so they aren’t safe to clear as a whole. Look folder by folder: big ones usually belong to chat apps, browsers and Android Studio. Folders from apps you’ve uninstalled are often safe to remove after a check.
The five questions
Settings, saved files and offline data that your apps keep in your Library folder.
Chat apps, browsers, design tools and Android Studio can each keep several gigabytes here.
Not as a whole. Each folder belongs to an app, so TidyMac looks at them one by one in Other big folders.
The right way: Open Other big folders to see which app owns each big folder and whether that app is still installed.
How big it gets: 10–80 GB. WhatsApp, Telegram, Chrome, Slack and Android tools are common leaders.
Where it lives: ~/Library
Leftovers from deleted apps
Dragging an app to the Trash leaves its Application Support and Containers folders behind. TidyMac matches each folder to an app ID and checks whether that app is still installed, then labels leftovers Check first. See what's in common app folders.
Do it yourself
In Finder choose Go > Go to Folder, type ~/Library/Application Support, and sort by size with View > Show View Options > Calculate all sizes.
du -xsh ~/Library/* | sort -rh | head
See your own app data and settings in seconds
Scan free, see every part of your storage explained, and clean only what’s safe. Everything goes to the Trash first.
Frequently asked questions
Is it safe to delete app data and settings on a Mac?
Not as a whole. Each folder belongs to an app, so TidyMac looks at them one by one in Other big folders. Open Other big folders to see which app owns each big folder and whether that app is still installed.
Why are my app data and settings so big?
Chat apps, browsers, design tools and Android Studio can each keep several gigabytes here.
How do I clean app data and settings manually?
In Finder choose Go > Go to Folder, type ~/Library/Application Support, and sort by size with View > Show View Options > Calculate all sizes.