Double Commander is a cross-platform open source file manager with two panels side by side. It is inspired by Total Commander and features some new ideas.
Total Commander is a Shareware file manager for Windows.
GNU Midnight Commander is a visual file manager, licensed under GNU General Public License and therefore qualifies as Free Software. Its a feature rich full-screen text mode application that allows you to copy, move and delete files and whole directory trees, search for files...
ForkLift is designed to be the fastest, most powerful file manager for the Mac. Connect to FTP or SFTP servers, manage your Amazon S3 account or your mobile devices over Bluetooth. All these features are beautifully integrated into a sophisticated, yet easy to use Cocoa based...
The Finder is the first thing that you see when your Mac finishes starting up. It opens automatically and stays open as you use other apps. It includes the Finder menu bar at the top of the screen and the desktop below that.
muCommander is a lightweight, cross-platform file manager with a dual-pane interface. It runs on any operating system with Java support (Mac OS X, Windows, Linux, *BSD, Solaris...).
Commander One is dual-pane file manager for OS X created in Swift, which enables you to manage your files in the best possible way.
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.Discontinued
The last release was in 2017, but you can still download it and use it.