Is your Mac running low on storage or feeling sluggish? Hidden files could be to blame. This article dives into the lesser-known corners of macOS, revealing which concealed files you can safely delete to reclaim space and improve performance.
Understanding hidden files on macOS
macOS hides certain files and folders to protect critical system components. However, not all hidden files are essential. Some are temporary or cache files that can be safely deleted to free up space.
To reveal hidden files in Finder, open a Finder window and press Command + Shift + . (period). This will make hidden files and folders appear grayed out. To hide them again, simply press the same key combination.
Hidden files you can safely delete
1. Temporary files in /private/var/tmp and /private/tmp
These directories store temporary files used by the operating system and installed applications. Most files here can be safely deleted unless they’re currently in use (indicated by a red circle with a white dash). Note that macOS typically clears these folders upon restart.
2. User cache files in ~/Library/Caches
Applications generate cache files to streamline processes and improve performance. However, these files can accumulate over time, gradually consuming a substantial amount of storage space. You can delete the contents of this folder to free up space. Be cautious not to delete the entire Caches folder—only its contents.
3. Application support files
Located in ~/Library/Application Support, this folder contains data for applications. When you uninstall an app, its support files might remain. You can safely delete folders related to apps you no longer use.
4. Crash reports in /Library/Application Support/CrashReporter
Crash reports for applications are stored in this folder. If you’re not troubleshooting any issues, these files can be deleted without impacting system performance.
5. Old log files
System and application logs are stored in /private/var/log and ~/Library/Logs. These logs can grow over time. You can delete old log files, but make sure that no applications are still using them.
Files to avoid deleting
While cleaning up, avoid deleting the following:
System and library folders – Files within /System and /Library are critical for macOS operations.
.DS_Store files – Folder view preferences are stored in these files. Deleting them won’t harm your system, but may reset folder settings.
Hidden files you don’t recognize – If you’re unsure about a file’s purpose, it’s best to leave it untouched or consult a professional.
Tips for safe cleanup
When you’re cleaning up your Mac, there are some things you should remember:
Back up before deleting – Always back up your data before making changes to system files.
Use disk cleanup tools – Consider using reputable tools such as OnyX or CleanMyMac to automate the cleanup process.
Plan routine maintenance – Schedule periodic cleanups to prevent the buildup of unnecessary files.
Regularly managing hidden files will help you maintain optimal performance and free up valuable storage on your Mac. Remember to proceed with caution and when in doubt, contact our team.
