nnn Alternatives

GNU Midnight Commander is a visual file manager, licensed under GNU General Public License and therefore qualifies as Free Software.

ranger is a 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.

Broot offers a better way to navigate directories. Different from the typical 'tree' command, it summarizes directory contents so more fits on screen.

Terminal file manager written in Go (programming language).

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.

noice, a blazing-fast lightweight terminal file browser with easy keyboard shortcuts for navigation, opening files and running tasks. noice is developed considering terminal based systems. There is no config file and mime associations are hard-coded.

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.

xplr is a terminal UI based file explorer that aims to increase our terminal productivity by being a flexible, interactive orchestrator for the ever growing awesome command-line utilities that work with the file-system.

A shell-like, command line terminal file manager written in C: simple, fast, extensible, and lightweight as hell

Joshito is a ranger like terminal file manager written in Rust.