fman is a dual-pane file manager for Mac, Windows, and Linux. It supports plug-ins and is actively developed. Fman is GoTo on steroids.
Ranked in these QuestionsQuestion Ranking
Pro Works on all operating systems
Windows, Mac, and Linux are supported.
Pro Makes finding commands *by name* easy
Con Has no menu bar
Hence it is not well suited for visually orientated users which find or remember commands by using a mouse and a menu.
Con No portable bundle available
On Windows only a net-installer is available.
Con Still quite buggy
So, for example, sorting only is remembered if triggered by command and not be clicking the table column header using the mouse.
Con Settings can't be found by the GUI
You need to know which files to edit.
Con No (text) file viewer
Con Mainly for key-board-orientated users
The interface is most naturally navigated by arrows and keystrokes. The target market is software developers.
Con No explicit bookmark support for directories
It though remembers the visited directories and allows to search in this list in most-recently used order and by name.