Find out how to reveal hidden system files and folders in Finder — a safe, reversible method that does not modify or delete any data on your Mac.

Step 1: Launch Terminal

Hold Command (⌘) + Space → enter Terminal and press Return

Step 2: Run the Visibility Command

Copy the command below into the Terminal window and hit Return

How this command works:

Toggles the macOS hidden file visibility setting in Finder

Restarts Finder to apply the change immediately

Does not modify, move, or delete any files on your system

Why files are hidden on macOS

macOS hides certain files and folders by default to protect the operating system from accidental modifications. These include system configuration files, application support data, library folders, and files whose names begin with a dot (.). While this keeps Finder clean and prevents inexperienced users from accidentally breaking system components, advanced users and developers often need access to these files for troubleshooting, configuration, or development purposes.

What becomes visible

System library folders — ~/Library, /Library, and /System/Library which contain application preferences, caches, and support files

Dotfiles — configuration files like .bash_profile, .zshrc, .gitconfig, and .ssh that are used by command-line tools and development environments

Application support data — hidden folders within apps that store logs, temporary data, and internal configuration

System configuration files — files used by macOS services for networking, security, and hardware management

Previously deleted items — files in hidden Trash folders on external drives or network volumes

Is it safe?

Yes. This command only changes a visibility setting — it makes hidden files visible in Finder without altering, moving, or deleting anything. Your files remain exactly where they are. You can reverse the change at any time by running the command again, which will hide system files once more. This is the same method recommended by Apple Support for advanced users.

Can I hide them again?

Yes. Running the command a second time will reverse the setting and hide system files again. Finder will restart automatically and return to its default view. You can toggle visibility as often as needed — there is no limit and no risk to your data.

Tips for working with hidden files

Be careful not to rename, move, or delete hidden system files — they are essential for macOS to function correctly

Use Finder's keyboard shortcut Command (⌘) + Shift + . (period) to quickly toggle hidden file visibility without Terminal

Hidden files and folders appear slightly translucent in Finder to distinguish them from regular files

If you only need to access the Library folder occasionally, hold Option (⌥) and click Go in the Finder menu bar

Consider hiding files again after you finish your task to keep Finder clean and avoid accidental modifications

Published Date: March 9, 2026