Back in 2011, when Apple released Mac OS X 10.7 Lion, it boasted over a hundred improvements to enhance the user experience, and one of them was the hiding of the User Library folder. To get around it, simply launch the Terminal (found in the Utilities folder inside your Applications folder) and paste in the following command and press the Enter key:
sudo chflags nohidden ~/Library/
Messing with the Terminal app isn’t an elegant method , but it allows you to access Library folder to remove a preference file, or delete an Application Support folder.
Beginning with Mac OS X 10.8 Mountain Lion forward, Apple has introduced a quick and easy way to access the Library folder.
In the Finder window, hold down the Option key while accessing the Go menu on the top menu bar, and select Library, the Library folder will open, allowing you to access its contents.
The technique will not change the Library folder to permanently visible. Once you close the Library folder, it will no longer show up in the Home folder. To access the Library folder again, you will have to perform the same procedure of selecting option-Go-Library.
If you need to access the Library folder frequently, You can still employed the Terminal method described above to unhide the Library, which will be turned visible until you tell Terminal to hide it with the command
sudo chflags hidden ~/Library/
Under macOS 10.12 Sierra, the Option-Go-Library method no longer works. Instead, you will need to do the following*:
From the Go menu, select the home folder.
Your Home folder will open and with the visible folders displayed.
To reveal the Library folder, Select Show View options and click on the check box for Show Library Folder.
Checking it will allow the Library to stay visible, even after a restart.
*The procedure also works on Mac OS X 10.11.