Developer Tools

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. com.trolltech.plist com.trolltech.plist is a macOS preference file used by software from trolltech, typically storing app settings and user choices. Sbin /usr/sbin is a protected macOS system folder that stores many administrator and network command-line tools used by the operating system. com.microsoft.vscode.shipit User Caches This folder stores cached update and installation data used by Visual Studio Code's ShipIt helper on macOS. 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.dosbox.dosbox.savedState This is DOSBox saved window state data that macOS uses to restore the app's last open session and window arrangement. 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. node-gyp User Caches Cache files used by node-gyp while downloading and preparing Node.js build headers for native module compilation. Node Modules The ~/node_modules folder usually contains JavaScript packages installed for Node.js projects and local development tools. 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. Frameworks /Library/Frameworks stores shared frameworks installed for macOS apps, especially older, cross-platform, or developer-related software. Developer /Library/Developer is a shared macOS folder typically used by Apple developer tools such as Xcode for SDKs, simulators, and related resources. Xcode Junk Xcode Logs This folder stores Xcode-related log files in your user Library, typically created during development, builds, debugging, or simulator activity. Xcode Junk Xcode Cache This folder stores cached data used by Xcode to speed up launches, indexing, and other developer workflows on your Mac. Xcode Junk Documentation Cache This Xcode folder stores downloaded documentation and indexing data used to browse Apple developer docs inside Xcode. Xcode Junk Derived Data Xcode DerivedData stores temporary build products, indexes, and intermediate files created while building and debugging projects in Xcode. Xcode Junk Archives Stores archived Xcode build outputs, usually created when you archive apps for distribution, testing, or keeping release snapshots. Xcode Junk iOS Device Support Xcode iOS DeviceSupport stores files Xcode uses to work with specific iPhone and iPad iOS versions during development and device debugging. Xcode Junk Simulator Runtimes This folder stores Xcode CoreSimulator data such as simulator runtimes, devices, and related files used for iOS, watchOS, and tvOS development. Usr /usr is a core macOS Unix directory containing commands, libraries, and shared resources used by the system and many apps. Dev /dev is a core Unix device directory on macOS that provides special files used by the operating system and hardware-aware software. GPG_Suite-2023.3.dmg A downloaded disk image installer for GPG Suite, commonly used to add OpenPGP email encryption and signing tools on Mac. DiagnosticReports User Logs DiagnosticReports user logs store crash, error, and diagnostic information created by apps or components named DiagnosticReports. Codex Var Folders Cache This folder is likely a per-user temporary working or cache location created by the Codex app under macOS /private/var/folders. Bin /bin is a core Unix system directory on macOS that holds essential command-line tools used by the operating system and Terminal sessions. File The /.file path is not a standard macOS file or folder name, and its purpose cannot be identified from the name alone. Opt /opt is a standard Unix-style folder used by optional third-party tools, package managers, and developer software on some Macs. Cache The ~/.cache folder in your home directory is a common location where apps and command-line tools store reusable temporary data. clang Var Folders Cache This folder is typically a temporary clang compiler workspace or cache created under macOS private var folders during builds. Homebrew User Caches This folder stores Homebrew download and build caches used while installing, updating, or upgrading command-line packages on your Mac. Xcode Junk Xcode Cache This folder stores cached data created by Xcode to speed up development tasks, indexing, downloads, and other routine IDE operations.