i3 is a tiling window manager, completely written from scratch. The target platforms are GNU/Linux and BSD operating systems, our code is Free and Open Source Software (FOSS) under the BSD license. i3 is primarily targeted at advanced users and developers.
License: Open Source
i3 is a tiling window manager designed for keyboard-centric users, offering efficient window management and extensive customization, while Openbox is a stacking window manager that is user-friendly, with better mouse support and easier configuration. i3 is ideal for users who need advanced window management features, whereas Openbox caters to those looking for a simple and efficient desktop experience.