# macOS: folders and what is safe to delete

- `/Applications/Install macOS *.app`: macOS installer, Rebuilds itself
- `/Library/Caches`: Temporary files shared by all users, Check first
- `/Library/Caches/*`: Shared temporary files of one program, Safe
- `/Library/Caches/com.apple.iconservices.store`: Shared icon store, Safe
- `/Library/Fonts`: Fonts for all users, Keep
- `/Library/Logs`: Activity records for the whole Mac, Check first
- `/Library/Logs/*`: Activity records of one system helper, Safe
- `/Library/Logs/DiagnosticReports`: System crash reports, Safe
- `/Library/Printers`: Printer and scanner software, Check first
- `/Library/Printers/PPDs`: Printer description files, Keep
- `/private/tmp`: System scratch folder, Check first
- `/private/var/db/diagnostics`: System activity archive, Keep
- `/private/var/folders`: Hidden temporary storage, Check first
- `/private/var/folders/*/*/C`: Hidden temporary files of one user, Check first
- `/private/var/folders/*/*/C/com.apple.FontRegistry`: Font lookup files, Safe
- `/private/var/folders/*/*/C/com.apple.iconservices`: App and file icons, Safe
- `/private/var/folders/*/*/C/com.apple.QuickLook.thumbnailcache`: File preview images, Safe
- `/private/var/folders/*/*/T`: Hidden scratch files of one user, Check first
- `/private/var/log`: Core system records, Keep
- `/private/var/vm`: Memory saved to disk, Keep
- `/System/Library/AssetsV2`: Built-in downloadable features, Keep
- `/System/Library/AssetsV2/*`: One downloadable system feature, Keep
- `/Users/Shared`: Files shared between users, Check first
- `/Users/Shared/Previously Relocated Items*`: Files set aside by an older upgrade, Check first
- `/Users/Shared/Relocated Items`: Files set aside by a macOS upgrade, Check first
- `~/Library/Application Support/*`: Data of one app, Check first
- `~/Library/Application Support/CrashReporter`: Crash reporter preferences, Safe
- `~/Library/Autosave Information`: Unsaved document copies, Keep
- [~/Library/Caches](https://gigabroom.com/guides/library-caches/): Temporary files of your apps, Check first
- `~/Library/Caches/*`: Temporary files of one app, Safe
- `~/Library/Caches/com.apple.helpd`: Downloaded help pages, Safe
- `~/Library/Caches/com.apple.nsurlsessiond`: Downloads in progress, Check first
- `~/Library/CloudStorage`: Files of cloud services, Keep
- `~/Library/CloudStorage/*`: Files of one cloud service, Keep
- `~/Library/Containers/*`: Private folder of one app, Check first
- `~/Library/Containers/*/Data/Documents`: Documents of a sandboxed app, Check first
- `~/Library/Containers/*/Data/Library/Caches`: Temporary files of a sandboxed app, Safe
- `~/Library/Fonts`: Fonts you installed, Check first
- `~/Library/Group Containers/*`: Shared folder of related apps, Check first
- `~/Library/Logs`: Activity records of your apps, Check first
- `~/Library/Logs/*`: Activity records of one app, Safe
- `~/Library/Logs/DiagnosticReports`: Crash reports of your apps, Safe
- `~/Library/Saved Application State`: Remembered window layouts, Check first