Apps similar to Sunflower include Double Commander, which is free and open source. Other options are Total Commander, Superfile, FreeCommander and Midnight Commander. There's no shortage of File Managers like Sunflower, with more than 25 alternatives for Windows, Linux, Mac, the web and Android.
Vifm is a file manager with curses interface, which provides Vi[m]-like environment for managing objects within file systems, extended with some useful ideas from mutt.
GNOME Commander is a "two-pane" graphical file manager for the GNOME desktop environment. GNOME Commander aims to fulfill the demands of more advanced users who like to focus on file management, their work through special applications and running smart commands.
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NetherlandsEU
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).
GermanyEU
DCommander is a two-pane file manager that gives you full control over your computer's filesystem.
AustriaEU
Magellan Explorer is an advanced, yet easy to use, Windows file manager based on the powerful dual window pane concept. Previous users of the Norton Commander file manager and similar tools will feel right at home.
Saladin is an 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.
PolandEU
Tux Commander is a windowed file manager with 2 panels side by side similar to Double Commander, Total Commander or Midnight Commander.
CzechiaEU
What is Rodent?
Rodent is fast, small and powerful file manager for the GNU operating system (but it also works in BSD). That's one way to look at it. Another way is to call it a graphic shell (that's probably more accurate).
Rodent wastes no space on menus or function.
CLEX is a free lightweight file manager with a full-screen user interface. It runs on GNU/Linux, FreeBSD, and other Unix and Unix-like systems. CLEX is open-source software licensed under the GNU General Public License.
JumpFm is a minimalistic dual panel file manager (currently released only for Windows, Mac, and Linux) that lets you navigate your file system very efficiently.
WinBrowser features a multi-column interface as used on the Macintosh resulting in the most elegant file manager available for Windows today.
