IceConf
It is written in perl with the Gtk module and runs on the X Window System under UNIX. A graphical configuration program for the Ice window manager.

IcePref2
An updated, overhauled, improved, and perfected version of the original IcePref .

WMakerConf
Unlike the WPrefs. A configuration utility for the Window Maker window manager.

wmanager
wmanager uses the Fast Light Toolkit (Fltk). A small X11 application for selecting a window manager at startup.

PyPanel
A lightweight panel/taskbar for X11 window managers that can be easily customized to match any desktop theme or taste.

KiceMenu
It allows you to create sub menus, separators and program entries in your file, as well as choosing an icon and a descriptive name. Lets you configure your icewm menus according to your wishes.

FvwmPlacement
Its intention is to automatically place windows of programs that do not accept -geometry settings or similar mechanisms. A plugin module for FVWM2 (F Virtual Window Manager, Version 2).

DockExtender
You can create up to 10 separate menus that you can access through the Dock, menu bar or by pressing a HotKey. (commercial) allows you to organize and access your applications, documents and web sites through custom menus that you create.

IceMe
It features tree editing with Drag'n'Drop and Cut'n'Paste, a shortcut editor and icon selection dialog . A graphical menu editor for IceWM written in Python and GTK.

CDEmu
It includes a Perl script that generates setup files for the Fvwm window manager, and gtkrc, qtrc, and xresources files so that all colors and fonts are consistently used in all aplications. An integrated theme to give your desktop the look of CDE.

IceWM Control center
Allows you to run various tools for configuring IceWM's options.

Menu2WM
Takes an XML document describing the structure of a menu and converts it to the format expected by the most common window managers.

Switchem
Switchem is written completely in perl. A commandline-based tool for switching your X11 window manager or desktop environment.

Denu
Its main feature is Web-based updates, and it also has some customization features. A portage-based menu generator/editor for Fluxbox, Openbox, GNOME, KDE, XFCE4, and Waimea.

FvwmProxy
The current capabilites include raising and lowering the proxied windows. A FVWM2 module that allows the user to locate and control windows obscured by other windows by using small non-overlapping proxy windows.

FluxBox-AA
An antialiasing patch for fluxbox, a UNIX window-manager.

FVWM Themes
It is in the developement stages. To create a powerful configurational framework for FVWM.

Devil's Pie
A window-matching utility, inspired by Sawfish's "Matched Windows" option and the lack of the functionality in Metacity.

IDesk
Gives users of minimal wm's (fluxbox, pekwm, windowmaker.

Oroborus Theme Changer
A mini-app written in Tcl / Tk which allows you to quickly change the theme in the Oroborus window manager.

fvwm-ewmh

wmxkb
A dockable/swallowed XKB groups indicator and switch.

FvwmPartition
Windows can be attached to these panes and manipulated together by dragging the bars that separate the panes. A FVWM2 module that allows the user to build a structure of panes in a fairly arbitrary manner.

wmmsg
A notification program, wmmsg_notify, is included to send events to the dockapp. Informs you of new events, such as incoming chat messages, by displaying related icons and arrival times.

Themus
You can manage your themes by going to themes:/// in Nautilus, where they are displayed and can be applied, installed, or deleted. A collection of theme utilities for GNOME.

wmconfig
It uses a very simple configuration and it's fast and small. A free tool for creating menu entries for various X window managers.

IceWM Theme Designer
It features a comfortable user interface and full drag-and-drop support. An intuitive program for designing and editing IceWM themes.

wmalbum
A WindowMaker dock applet that displays album covers for songs being played by XMMS.