Application Support
/Library/Application Support stores shared app and service data used by macOS and installed software for configuration, resources, and ongoing operation.
What is Application Support?
/Library/Application Support is a system-wide folder on macOS where apps, installers, and background components store shared support files. These can include databases, helper resources, licensing data, downloaded assets, plug-ins, and other information needed for apps to work for all users on the Mac. People often encounter this folder when troubleshooting software, checking storage use, or looking for data left behind by an app.
Review files before deleting with diCleaner
Inspect caches, support files, folders, and related data before deleting items on Mac.
Safety overview
Status: Use with caution
This location is legitimate and commonly used by both Apple components and third-party software. Deleting items here can reset apps, remove shared data, break licensed features, or stop background tools from working. Risk depends on the specific subfolder, not the parent folder itself.
Recommendation: Keep the main /Library/Application Support folder. If you are reviewing space or leftovers, inspect individual vendor or app subfolders and only remove ones clearly tied to software you have fully uninstalled and no longer use.
File path
/Library/Application Support
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