xmonad
The core of xmonad, a small but functional ICCCM-compliant
A dynamically tiling X11 window manager that is written and configured in Haskell. In a normal WM, you spend half your time aligning and searching for windows. XMonad makes work easier, by automating this. xmonad automates the common task of arranging windows, so you can concentrate on getting stuff done. Out of the box, no window decorations, no status bar, no icon dock. just clean lines and efficiency. Haskell and smart programming practices guarantee a crash-free experience. It sports a vibrant extension library, including support for window decorations, status bars, and icon docks. Core features like per-screen workspaces, true xinerama support and managehooks can’t be found in any other wm. We work hard to make common configuration tasks one-liners.