Q-Dir is described as 'Makes your files and folder easy to manage. Fast and easy access, with an amazing Quadro-View (4 panes) technique. You dont have to renounce the usual, Drag and Drop, all Views, and other functions of your system. No!' and is a very popular File Manager in the file management category. There are more than 50 alternatives to Q-Dir for a variety of platforms, including Windows, Linux, Mac, BSD and Android apps. The best Q-Dir alternative is Double Commander, which is both free and Open Source. Other great apps like Q-Dir are Total Commander, Files, Spacedrive and Dolphin File Manager.