Utilities

Android The ~/Library/Android folder usually stores user-level data for Android-related tools such as Android Studio, SDK helpers, or file transfer utilities. Uv The ~/.cache/uv folder usually stores reusable cache data for uv, a Python packaging and environment tool used by developers. com.qtproject.plist com.qtproject.plist is a macOS preference file used by software built with Qt to store app-specific settings and user choices. Wdc ~/.wdc is typically a hidden folder used by Western Digital drive tools to store support files, settings, or working data. System Logs CrashReporter This folder stores macOS CrashReporter log files that help diagnose app and system crashes for troubleshooting and support. group.com.folivora.BTTShared A shared data container used by BTTShared, likely for BetterTouchTool-related settings or app communication between components. group.6HB5Y2QTA3.com.psdr.services This Group Containers folder is associated with com.psdr.services and likely stores shared app data used by one or more related services components. com.trolltech.plist com.trolltech.plist is a macOS preference file used by software from trolltech, typically storing app settings and user choices. BJECZ3G6DL.group.com.acdsee11 A shared container folder used by com.acdsee11 to store app data that may be needed by ACDSee features and account-linked components. 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. com.canva.affinity.quicklook This folder is likely a sandbox container used by an Affinity-related Quick Look extension to support Finder previews on macOS. 6H4HRTU5E3.group.com.avast.osx This Group Containers folder is typically shared data used by Avast components on macOS, such as settings, support files, or synced app data. 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. Virtual OS Container This container folder stores sandboxed data for virtualOS, an open-source macOS app used to run virtualized macOS environments. Npm The ~/.npm folder stores npm cache and package data used by Node.js development tools and command-line installs. com.iboysoft.swift-menu.SwiftMenu-Finder-Integration This container appears to belong to a Finder integration component of com.iboysoft.swift-menu and stores sandboxed app data for that feature. com.dosbox.dosbox.savedState This is DOSBox saved window state data that macOS uses to restore the app's last open session and window arrangement. com.flyingmeat.Acorn8.Acornappex This is a sandbox container folder for an Acorn8 app extension, typically used to store extension-specific data and settings. com.flyingmeat.Acorn8.QLThumbnail A sandbox container used by Acorn8’s Quick Look thumbnail helper to store its isolated app data on your Mac. com.flyingmeat.Acorn8.QLPreview This folder is Acorn8’s sandbox container for its Quick Look preview component, used when macOS shows previews for supported files. diCleaner Var Folders Cache This folder is diCleaner temporary working data stored in macOS user cache areas under /private/var/folders. Rustup The ~/.rustup folder stores Rust toolchains, components, and metadata installed by rustup for Rust development on your Mac. Virtual Machines Localized The ~/Virtual Machines.localized folder is commonly used to store virtual machine bundles and related files for virtualization apps on macOS. Metadata ~/Library/Metadata stores Spotlight indexing metadata used by macOS to organize and speed up search in some library data. Chrome Apps Localized "Chrome Apps.localized" is typically a Finder-localized applications folder used by Google Chrome app shortcuts or older Chrome app integrations. Caches The ~/Library/Caches folder stores temporary app and system cache data that helps speed up launches, browsing, and other routine tasks.