WinNc by Dunes MultiMedia is a tabbed file management application with the functionality and design similar to Norton Commander. Unfortunately, WinNc for Mac is not available for download, but, you can use one of the similar tools to manage and browse your files on Mac. This list gives you a couple of apps that can be used to replace WinNc for Mac.
Feel free to add any alternative to WinNc for Mac that you know of.
Suggest Alternatives
muCommander is the best freeware alternative.