In computing, a dynamic window manager

Window manager

A window manager is system software that controls the placement and appearance of windows within a windowing system in a graphical user interface. Most window managers are designed to help provide a desktop environment...

 is a tiling window manager

Tiling window manager

In computing, a tiling window manager is a window manager with an organization of the screen into mutually non-overlapping frames, as opposed to the more popular approach of coordinate-based stacking of overlapping objects that tries to fully emulate the desktop metaphor.-Xerox PARC:Although the...

 where windows are tiled based on preset layouts between which the user can switch. Layouts typically have a master area and a slave area. The master area usually shows one window, but one can also change the amount of windows in this area. The point of it is to reserve more space for the more important window(s). The slave area shows the other windows.

Tiling window managers that don't use layouts are called manual tiling window managers. They let the user decide where windows should be placed.

X Window System

The following dynamic window managers are available for the X Window System

X Window System

The X window system is a computer software system and network protocol that provides a basis for graphical user interfaces and rich input device capability for networked computers...

:

• awesome
  Awesome (window manager)
  awesome is a dynamic window manager for the X Window System developed in the C and Lua programming languages. The latter is also used for configuring and extending the window manager. Its development began as a fork of dwm...
  
  
• bluetile - A full featured window manager for the GNOME
  GNOME
  GNOME is a desktop environment and graphical user interface that runs on top of a computer operating system. It is composed entirely of free and open source software...
  
   environment
• dwm
  Dwm
  dwm is a dynamic tiling window manager for X11 exhibiting the principles of minimalism which is known for having influenced the development of other window managers, including xmonad and awesome. It is externally similar to wmii, but internally much simpler. dwm is written purely in C and, for...
  
  
• echinus
• fvwm
  FVWM
  The F Virtual Window Manager is a virtual window manager for the X Window System. Originally a twm derivative, FVWM has evolved into a powerful and highly configurable environment for Unix-like systems.- History:...
  
  
• larswm
  Larswm
  larswm is a window manager for the X window system that follows the tiling window manager paradigm. Using ideas from the older 9wm window manager, it features automatic tiling and virtual desktops. It also borrows other ideas, for example a limited form of plumbing, from the Acme development...
  
  
• scrotwm
• xmonad
  Xmonad
  xmonad is a tiling window manager for the X Window System, written in the functional programming language Haskell.Begun in March 2007, it is similar to dwm, larswm, StumpWM and other members of the tiling window manager family, in that it arranges windows in a nonoverlapping tiled pattern and...
  
  

Microsoft Windows

• bug.n - Amongst other flavours is a dynamic, tiling window manager, which tries to clone the functionality of dwm
  Dwm
  dwm is a dynamic tiling window manager for X11 exhibiting the principles of minimalism which is known for having influenced the development of other window managers, including xmonad and awesome. It is externally similar to wmii, but internally much simpler. dwm is written purely in C and, for...
  
  (see list of X window managers) (GPL).
• Windawesome - A highly customizable dynamic window manager written in C# (GPL v2).