Apple

System Logs CrashReporter This folder stores macOS CrashReporter log files that help diagnose app and system crashes for troubleshooting and support. iOS Device Backup 55237f35 This folder stores one local iPhone or iPad backup created by Finder or iTunes on your Mac. Safari Container This folder stores Safari’s sandboxed app data in your user Library, including settings, website data, and other browser-related files. Final Cut Container This folder stores sandboxed app data for Final Cut on your Mac, including settings and working data used by the app. I Books X Container Sandbox container data for Apple Books on macOS, typically holding app-specific settings and local state for the iBooksX app. Maps Container This folder stores sandboxed data for Apple Maps on your Mac, such as app state, local settings, and some temporary working files. Weather Container Sandbox container data for the built-in Apple Weather app, used to store its local settings and app-specific files in your user library. Preview Container This folder stores Preview’s sandboxed app data, preferences, and working files for the built-in macOS PDF and image viewer. Sbin /usr/sbin is a protected macOS system folder that stores many administrator and network command-line tools used by the operating system. Library /System/Library contains core macOS components used by the operating system, built-in apps, frameworks, drivers, fonts, and essential services. System /System/iOSSupport/System is a macOS system folder used for iPhone and iPad compatibility features and should generally be left alone. Previously Relocated Items A macOS folder that stores reports and copies of files moved during some system upgrades or migrations. .com.apple.Finder.sharedprefs.plist A hidden Finder preferences plist in /Users/Shared, likely storing shared Finder settings or state used by macOS or a user session. Driver Kit /System/DriverKit is a macOS system folder that supports DriverKit hardware drivers used by some devices and low-level extensions. Extensions /System/Library/Extensions contains macOS kernel extensions and driver components that support hardware and low-level system features. I Application Support This iCloud Drive support folder can store CloudDocs session data and document version remnants, and it may grow large when sync or app versioning misbehaves. Preferences The ~/Library/Preferences folder stores per-user app and system settings that many Mac apps read to remember your choices. Devices Simulator Data Stores Xcode iOS, watchOS, and tvOS simulator device data, including app installs, settings, and test state for local development. CloudKit User Caches Cache files used by CloudKit on macOS to speed up iCloud-related syncing and local access for apps that rely on CloudKit. Metadata ~/Library/Metadata stores Spotlight indexing metadata used by macOS to organize and speed up search in some library data. Mobile Documents The ~/Library/Mobile Documents folder stores iCloud Drive and app document sync data used by macOS and many Apple apps. ~ Your home folder (~) is the main personal directory for your macOS account, containing your documents, desktop files, settings, and app data. Containers This folder stores sandboxed app data for many Mac apps, separating each app’s files, settings, and internal working data. Keychains /Library/Keychains stores system-wide keychains and trust data used by macOS and apps for certificates, secure identities, and shared credentials. Printers The /Library/Printers folder stores printer drivers, PPDs, and related printing resources used by macOS and installed printer software. Launch Daemons /Library/LaunchDaemons stores system-wide background service definitions that let macOS and installed software start tasks automatically. Pictures The ~/Pictures folder usually stores your personal photo libraries, screenshots, and image files created or imported on your Mac. Library The ~/Library folder stores per-user app data, settings, caches, and support files that many Mac apps and features rely on. Desktop The Desktop folder stores files, screenshots, aliases, and folders you place on your Mac desktop for quick access. Documents The ~/Documents folder is your personal documents area on macOS, commonly used to store work files, notes, PDFs, and app-created documents. Movies The ~/Movies folder is your Mac user account’s standard location for storing personal videos, movie files, and media projects. Ruby Gems 2.6.0 This folder stores Ruby gems for the system-provided Ruby 2.6 environment and may be used by developer tools, scripts, or older macOS components. Fonts The /Library/Fonts folder stores fonts available to all users on the Mac for apps like design, office, and document tools. Logs /Library/Logs stores system-wide log files created by macOS and installed software for troubleshooting, diagnostics, and service activity records. Audio /Library/Audio is a shared macOS system location for audio components, drivers, plug-ins, and MIDI resources used by the OS and audio software. Developer /Library/Developer is a shared macOS folder typically used by Apple developer tools such as Xcode for SDKs, simulators, and related resources.