How to give the cliens file manager access to their respective domain directory

Hello everyone, 

I got a doubt to ask. I want to know that apart from FTP access to the respective directory of the domain. Is there any other way like GUI panel from where I can give access to the clients to their respective web directory. As many of my clients belong to Nontechnical background so most of them don't know how to use any FTP clients like Filezilla or WinSCP. 

I was thinking of providing them the web-based Cpanel from where they can only access their web directory through a file manager. Just like other web hosting providers do.


Thank You