iceWM

{{Short description|X11 window manager}}

{{Infobox software

| name = IceWM

| title = IceWM

| logo = IceWM Logo.png

| screenshot =

| caption = Legacy OS running IceWM

| collapsible =

| author =

| developer = Marko Maček

| discontinued =

| released = {{Start date and age|1997}}

| latest release version = {{wikidata|property|preferred|references|edit|Q669886|P348|P548=Q2804309}}

| latest release date = {{wikidata|qualifier|preferred|single|Q669886|P348|P548=Q2804309|P577}}

| latest preview version = {{wikidata|property|preferred|references|edit|Q669886|P348|P548=Q51930650}}

| latest preview date = {{wikidata|qualifier|preferred|single|Q669886|P348|P548=Q51930650|P577}}

| programming language = C++

| operating system = Unix-like

| platform =

| size =

| language =

| genre = Window manager

| license = 1998: LGPL-2.0-only{{efn|LGPL-2.0-only since 1998, version 0.9.13.{{cite web|url=http://archive.debian.org/debian/dists/slink/main/source/x11/icewm_0.9.15.orig.tar.gz|title=icewm_0.9.15.orig.tar.gz}}}}
1997: GPL-2.0-only{{efn|GPL-2.0-only from 1997-07-14 until 1998, version 0.9.12.{{cite web|url=https://www.ibiblio.org/pub/Linux/X11/window-managers/icewm-0.8.9.src.tar.gz|title=icewm-0.8.9.src.tar.gz}}}}

| website = {{URL|https://ice-wm.org}}

}}

IceWM is a stacking window manager for the X Window System, originally written by Marko Maček. It was written from scratch in C++ and is released under the terms of the GNU Lesser General Public License.

{{cite journal

|last=Saunders|first=Mike|date=March 2008

|title=Lightweight window managers

|journal=Linux Format

|publisher=Future Publishing|location=UK

|issue=103

|url=http://www.linuxformat.co.uk/archives?issue=103

}}

It is customizable, relatively lightweight in terms of memory and CPU usage, and comes with themes that allow it to imitate the GUI of Windows 95, Windows XP, Windows 7, OS/2, Motif, and other graphical user interfaces.

IceWM can be configured from plain text files stored in a user's home directory, making it easy to customize and copy settings. IceWM has an optional, built-in taskbar with a dynamic start menu, tasks display, system tray, network and CPU meters, mail check and configurable clock. It features a task list window and an Alt+Tab task switcher. Official support for GNOME and KDE menus used to be available as a separate package. In recent IceWM versions, support for them is built-in as well. External graphical programs for editing the configuration and the menu are also available.