ranger is described as 'Terminal file manager with VI key bindings. It provides a minimalistic and nice curses interface with a view on the directory hierarchy. The secondary task of ranger is to psychically guess which program you want to use for opening particular files' and is a popular File Manager in the development category. There are more than 25 alternatives to ranger for a variety of platforms, including Linux, Mac, Windows, BSD and Android apps. The best ranger alternative is Double Commander, which is both free and Open Source. Other great apps like ranger are Spacedrive, Dolphin File Manager, Midnight Commander and Superfile.