Saladin is described as 'open source dual-pane file manager for Windows which merges the capabilities of Windows Explorer with the well known and easy to use orthodox user interface' and is an app in the File Management category. There are more than 50 alternatives to Saladin for a variety of platforms, including Windows, Mac, Linux, BSD and PortableApps.com. The best alternative is Double Commander, which is both free and Open Source. Other great apps like Saladin are Total Commander (Freemium), Midnight Commander (Free, Open Source), Dolphin File Manager (Free, Open Source) and XYplorer (Paid).
TotalFinder works like the normal Finder but adds tabs, dual panel, colored labels and other features. My goal is to improve Finder in a few areas where it is lacking but keep the general design. Features: - Colored labels: Brings full colors back into El Capitan.
Worker is a file manager for the X Window System on UN*X with low requirements (basically only the X11 libraries). The directories and files are shown in two independent panels (similar to Midnight Commander).
The NERDTree is a file system explorer for the Vim editor. Using this plugin, users can visually browse complex directory hierarchies, quickly open files for reading or editing, and perform basic file system operations.