In mac os, you don't need any extra tools or applications to hide files and folders. you can just put a period(.) at the starting of the file/folder to hide them.
after that file or folder will not be displayed. This can be again made visible and invisible by the following commands
Notes: type the following commands in the terminal application
*To show hidden files and folders*:
defaults write com.apple.finder AppleShowAllFiles TRUE
To hide files and folders starting with period (.) :
defaults write com.apple.finder AppleShowAllFiles FALSE