Commander One is a dual pane file manager for macOS, created entirely in Swift.

iTerm2 is a GPL-licensed terminal emulator for macOS. It was derived from and has mostly supplanted the earlier "iTerm" application.

trolCommander is a fork of the free and opensource (GPL) file manager muCommander.

muCommander is a lightweight, open-source, cross-platform file manager that will run on any operating system supporting Java.

XtraFinder adds Tabs and features to Mac Finder.

fman is a dual-pane file manager for Windows, macOS and Linux.