Sway is a tiling Wayland compositor and a drop-in replacement for the i3 window manager for X11. It works with your existing i3 configuration and supports most of i3's features, plus a few extras.
Sway allows you to arrange your application windows logically, rather than spatially. Windows are arranged into a grid by default which maximizes the efficiency of your screen and can be quickly manipulated using only the keyboard.
Sway is documented via manpages. For a list of available manpages, refer
man -k sway.
We also maintain the wlroots project to provide a modular basis for Sway and other Wayland compositors to build upon, and we publish standards for interoperable Wayland desktops.