Double Commander is a very interesting cross-platform file manager inspired by Total Commander (it even supports Total Commander plugins). It uses two panels side by side and comes with a huge feature list: tabbed interface, multi-rename tool, embedded terminal, internal text editor and file viewer, browse archives (ZIP, TGZ, LZMA, RPM, RAR, DEB, etc.), extended search and is fully customizable.

Double Commander is one of the best two-pane file managers for Linux (but also runs on Windows). It comes with a multi-rename tool, tabbed interface, custom columns, internel text editor with syntax highlighting, built in file viewer, archive support (are handled like subdirectories), extended search and lots more.

Double Commander is an open source file manager with two panels side by side which many people claim to be the best alternative to Total Commander (I for one prefer MC but I also enjoyed testing Double Commander). In fact Double Commander is inspired by Total commander but also features some new ideas.

Double Commander runs on Linux and Windows.