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KDE, kdealer
KDE /ˌkeɪdiːˈiː/ is an international free software community1 developing free and libre software like Plasma Desktop, KDE Frameworks, and many cross-platform applications designed to run on modern Unix-like and Microsoft Windows systems It further provides tools and documentation for developers to write such software, which makes it a central development hub and home for many popular applications and projects like Calligra Suite, Krita, digiKam, and many others

The Plasma Desktop, being one of the most recognized projects of KDE, is the default desktop environment on many Linux distributions, such as openSUSE, Mageia, Chakra, Kubuntu, and Manjaro Linux It was also the default desktop environment on PC-BSD, but was later replaced with "Lumina", a desktop environment which, like KDE, is written in C++ and Qt2


  • 1 Overview
  • 2 History
    • 21 Origins
    • 22 Brand repositioning
  • 3 Community structure
    • 31 Organization
    • 32 Local community
    • 33 Communication
    • 34 Identity
  • 4 Contributors
    • 41 Development
    • 42 Other groups
  • 5 Activities
    • 51 Akademy
    • 52 Camp KDE
    • 53 Akademy-es
    • 54 Other community events
  • 6 KDE Software
    • 61 Overview
    • 62 KDE Plasma Workspaces
    • 63 KDE Frameworks
    • 64 KDE Applications
    • 65 KDE neon
    • 66 WikiToLearn
  • 7 Collaborations with other organizations
    • 71 Wikimedia
    • 72 Free Software Foundation Europe
    • 73 Commercial enterprises
    • 74 Others
  • 8 Notable uses
  • 9 See also
  • 10 References
  • 11 External links


The work of the KDE community can be measured in the following figures:

  • KDE is one of the largest active Free Software communities3
  • More than 1800 contributors participate in developing KDE software3 About 20 new developers contribute their first code each month4
  • KDE Software consists of over 6 million lines of code not including Qt3
  • KDE Software is translated in over 108 languages5
  • KDE Software is available on more than 114 official FTP mirrors in over 34 countries6
  • A read-only mirror of all repositories can be found on Github7



Matthias Ettrich, Founder of KDE

K Desktop Environment KDE was founded in 1996 by Matthias Ettrich, who was then a student at the Eberhard Karls University of Tübingen At the time, he was troubled by certain aspects of the Unix desktop Among his concerns was that none of the applications looked, felt, or worked alike He proposed the creation of not merely a set of applications but a desktop environment in which users could expect things to look, feel, and work consistently He also wanted to make this desktop easy to use; one of his complaints about desktop applications of the time was that it is too complicated for end user His initial Usenet post spurred a lot of interest, and the KDE project was born8

The name KDE was intended as a wordplay on the existing Common Desktop Environment, available for Unix systems CDE is an X11-based user environment jointly developed by HP, IBM, and Sun through the X/Open consortium, with an interface and productivity tools based on the Motif graphical widget toolkit It was supposed to be an intuitively easy-to-use desktop computer environment9 The K was originally suggested to stand for "Kool", but it was quickly decided that the K should stand for nothing in particular Therefore, the KDE initialism expanded to "K Desktop Environment" before it was dropped altogether in favor of KDE = Community due to the rebranding effort

Brand repositioningedit

On 24 November 2009 the KDE Marketing Team announced a rebranding of the KDE project components, motivated by the perceived shift from building a desktop environment to a wider ranging project around a community of "people who create software" The rebranding focused on de-emphasizing the desktop environment as "just another product", and emphasizing both the community and the other technologies provided as KDE software What would have been previously known as KDE 4 was split into three products: Plasma Workspaces, KDE Applications, and KDE Platform – bundled as "KDE Software Compilation 4" abbreviated "KDE SC 4"10 As of today the name KDE no longer stands for K Desktop Environment, but for the community that produces the software11

Community structureedit


The financial and legal matters of KDE are handled by KDE eV, which is a German non-profit organization, and help organizing the conferences and meetings of the community members is also handled by the organization12 KDE eV helps run the servers needed by the KDE community It owns the trademark on KDE and the logo It pays for travel to meetings and subsidizes events13 The working groups are a structure which will formalize some roles within KDE and enhance coordination within KDE and communication between parts of KDE14 KDE eV has no influence on development KDE eV logo has been contributed by David Vignoni The three flags on top of the logo represent the three main tasks of the KDE eV: supporting the community, representing the community, and governing the community15

The KDE community's developer meetings, servers, and related events are frequently sponsored by individuals, universities, and businesses16 The supporting members of the KDE eV are extraordinary members supporting the KDE through financial or material contributions17 Supporting members are entitled to display the "Member of KDE" logo on their website or in printed materials The Patron of KDE is the highest level of supporting member The patrons of KDE also are entitled to display the exclusive "Patron of KDE" logo on their website or in printed materials18 On 15 October 2006, it was announced that Mark Shuttleworth had become the first Patron of KDE19 On 7 July 2007, it was announced that Intel Corporation and Novell had also become patrons of KDE20 In January 2010, Google became a supporting member On 9 June 2010, KDE eV launched the "Join the Game" campaign This campaign promotes the idea of becoming a supporting member for individuals It is made available for those who would like to support KDE, but do not have enough time to do so Georg Greve, founder of the Free Software Foundation Europe FSFE was first to 'join the game'21

Local communityedit

In many countries, KDE has local branches These are either informal organizations KDE India or like the KDE eV, given a legal form KDE France The local organizations host and maintain regional websites, and organise local events, such as tradeshows, contributor meetings and social community meetings

KDE–AR logo

KDE–AR KDE Argentina is the group of KDE developers and users in Argentina, and was officially opened on November 22 2008 at a meeting in an IRC channel They organise release parties on holidays to celebrate releases of new versions of the KDE SC since 42 KDE–AR has an own mailing lists and an IRC channel

KDE Brasil is composed by several local groups in Brazil, like KDE–MG, Live Blue, KDE Piauí, and KDE–RS The main goals of local groups are regional promotion and direction of contributions of members, and still maintaining harmony with the KDE Brazil community KDE–MG is a local group in Minas Gerais The idea of structuring the group has arisen during the FISL Fórum Internacional Software Livre 10 Live Blue is a KDE working group in Bahia KDE Piauí is a group of users and contributors of KDE in the Piauí The idea was born during the Software Freedom Day Teresina 2009 and has concretized during the Akademy–Br 2010, where the group was officially created KDE–RS is a group of KDE users from Rio Grande do Sul KDE Lovelace is a Brazilian female group of users and contributors in KDE

KDE España was registered as an association under the Spanish law in 2009 The aim is stimulating the development and use of the KDE software in Spain Its supreme governing body is the general assembly Ordinary as well as extraordinary general assemblies can be held An ordinary general assembly is held at least once a year Extraordinary general assemblies are held as necessary The board consists of the president, the vice president, the secretary, the treasurer and members In the current board are Aleix Pol i Gonzàlez president, Alejandro Fiestas Olivares vice president, Víctor Blázquez Francisco secretary, and José Millán Soto treasurer22 In addition, KDE España is the official representative of KDE eV in Spain23

KDEin KDE India, founded in 2005, provides Indian KDE developers and users with a community hub to coordinate with and support each other Besides making efforts in the internationalization and localization, a major aim is to foster the creation and adaptation of KDE applications to needs specific to India24

Japan KDE Users' Group JKUG/日本 KDE ユーザ会, Nihon KDE Yūzakai is the Japanese local users' group of KDE The membership types of the association are corporate members 法人会員, hōjin kaiin and individual members 個人会員, kojin kaiin About 15 members form the active staff The officers include one president 会長, kaichō, two vice presidents 副会長, fuku-kaichō and one accountant Currently, president is Daisuke Kameda 亀田大輔, Kameda Daisuke, vice presidents are Taiki Komoda 菰田泰生, Komoda Taiki and Satoru Satō 佐藤暁, Satō Satoru The association holds an annual general assembly in December25 Its activities include message translation to Japanese, making patches for multilingualization, and exchanging information about KDE/Qt26

KDE GB is a KDE community with a constitution in Britain At their meeting in October 2010 they agreed to register as a charity27 KDE-ir فارسی KDE is a Persian KDE community Korean KDE Users Group was started in 1999 The group's work is mostly translation28

KDE România is a community founded in Romania in 2013


Communication within the community takes place via mailing lists, IRC, blogs, forums, news announcements, wikis and conferences The community has a Code of Conduct for acceptable behavior within the community29

The mailing lists are one of the main channels of communication The Kde list is for user discussion and Kde-announce for version updates, security patches and other changes The general development lists are Kde-devel, for developer communication, and Kde-core-devel, used to discuss development of the KDE Platform Many applications have individual mailing lists

The KDE Community Forums are actively used "KDE Brainstorm", allows users to submit ideas to developers The request can then be considered by other users Every few months, the highest-voted features are submitted to developers30 IRC bots that announce new threads and posts on IRC channels, by braiding forum posts into mailinglist messages and by offering RSS feeds31

KDE has three wikis: UserBase, TechBase and Community Wiki They are translated with the MediaWiki Translate extension UserBase provides documentation for end users: tutorials, links to help and an application catalogue Its logo was designed by Eugene Trounev32 TechBase provides technical documentation for developers and system administrators33 Community Wiki coordinates community teams It is used for publishing and sharing community-internal information

IRC channels provide real-time discussions Planet KDE is made from the blogs of KDE's contributors KDENews is the website of office news announcements34 KDE Buzz tracks identica, Twitter, Picasa, Flickr and YouTube to show social media activity concerning KDE35 KDE Pastebin allows for posting of source code snippets and provides syntax highlighting to ease reviewing code Sections can be password protected RSS notifies of new posts36 KDE Bug Tracking System uses Bugzilla to manage reports and fixes "Behind KDE" offers interviews with KDE contributors


Konqi Katie

The KDE community’s mascot is a green dragon named Konqi37 Konqi has a girlfriend named Katie Konqi and Katie made their costumed appearance at the KDE 40 Release Event and Camp KDE 201038 Konqi also appears on the KDE software's about dialog Kandalf the wizard was the former mascot for the KDE community during its 1x and 2x versions, but he was dropped owing to copyright issues his resemblance to Gandalf Konqi's appearance was officially redesigned with the coming of Plasma 5, with Tyson Tan's entry seen on the right winning the redesign competition on the KDE Forums39

KDE has community identity guidelines CIG for definitions and recommendations which help the community to establish a unique, characteristic, and appealing design40 The KDE official logo displays the white trademarked K-Gear shape on a blue square with mitred corners Copying of the KDE Logo is subject to the LGPL41 Some local community logos are derivations of the official logo The KDE software labels are used by producers of software to show that they are part of the KDE community or that they use the KDE Platform There are three labels available The Powered by KDE label is used to show that an application derives its strength from the KDE community and from the KDE development platform The Built on the KDE Platform label indicates that the application uses the KDE platform The Part of the KDE family label is used by application authors to identify themselves as being part of the KDE community42

Many KDE applications have a K in the name, mostly as an initial letter The K in many KDE applications is obtained by spelling a word which originally begins with C or Q differently, for example Konsole and Kaffeine Also, some just prefix a commonly used word with a K, for instance KGet Among KDE SC 4 applications and technologies, however, the trend is not to have a K in the name at all, such as Stage and Dolphin


Like many free/open source projects, developing KDE software is primarily a volunteer effort, although various companies, such as Novell, Nokia,43 or Blue Systems employ or employed developers to work on various parts of the project Since a large number of individuals contribute to KDE in various ways eg code, translation, artwork, organization of such a project is complex


The overall direction of the KDE Platform is made by the KDE Core Team These are developers who have made significant contributions within KDE over a long period of time This team communicates using the kde-core-devel mailing list, which is publicly archived and readable, but joining requires approval KDE does not have a single central leader who can veto important decisions Instead, the KDE core team consisting of several dozen contributors taking decisions The decisions do not take a formal vote, but through discussions44 The Developers also organize alongside topical teams For example, the KDE Edu team develops free educational software While these teams work mostly independent and do not all follow a common release schedule Each team has its own messaging channels, both on IRC and on the mailinglists And they have mentor program which helps beginners to get started4546

Currently the KDE community uses the Git revision control system The KDE Projects site and QuickGit give an overview of all projects hosted by KDE's Git repository system Review Board is used for patch reviewcitation needed Commitfilter will send an email with each commit for the projects you want to watch, without either getting tons of mails or getting infrequent and redundant information English Breakfast Network EBN is a collection of machines that do automated KDE source artifact quality checking The EBN provides KDE API documentation validation, user documentation validation, source code checking It is operated by Adriaan de Groot and Allen Winter Commit-Digest site gives a weekly overview of the development activity LXR indexes classes and methods used in KDE

Season of KDE SoK is a program for people who could not get accepted into Google Summer of Code They will have a mentor from the KDE community to help them if any question arises or if they do not know how to continue47

On 20 July 2009, KDE announced that the one millionth commit has been made to its Subversion repository4 On October 11, 2009, Cornelius Schumacher, a main developer within KDE,48 wrote about the estimated cost using the COCOMO model with SLOCCount to develop KDE software package with 4,273,291 LoC, which would be about US$175,364,71649 This estimation does not include Qt, Calligra Suite, Amarok, Digikam, and other applications that are not part of KDE coreclarification needed

Other groupsedit

The KDE community has many smaller teams working towards specific goals The Accessibility team make KDE accessible to all users, including those with physical handicaps50 The Artists team has designed most of the artwork used by the software like icons, wallpapers and themes They have also produced graphics for T-shirts and websites Discuss of the team is most active on the IRC channel51 The Bugsquad team keeps track of incoming bugs They verify that a bug exists, that it is reproducible, and that the reporter has given enough information The goal is to help developers notice valid bugs quicker, and to save their time52 The Documentation team writing documentation for application53 The team uses the DocBook format and custom tools to create documentation54 The Localization team translate KDE software into many different languages This team works beside the Documentation team55 The Marketing and Promotion team manages marketing and promotion The team writes news articles, release announcements and other webpages on KDE websites The articles of KDENews is submitted by the team It also has channels at social media sites for communication and promotion They also attend conference events56 The Research team is to improve the collaboration with external parties to achieve more funded research They support community members by providing information, navigating bureaucracies, and matching research partners The usability team has written a Human Interface Guideline HIG for the developers and they do regular reviews of KDE applications The HIG provides a standardized layout57 The Web team maintains KDE’s web presence The KDE Women help women to contribute and encourage women to give talks at conferences58

The Release team defines and executes the official software releases The Team is responsible for setting release schedules for the official releases This includes release dates, deadlines for individual release steps and restrictions for code changes The Release Team coordinates release dates with the marketing and press efforts of KDE The release team is composed of Module Coordinators, Marketing Team liaison, and the people who actually do the work of tagging and creating the releases59


The two most important conferences of KDE are Akademy and Camp KDE Each event is on a large scale, both thematically and geographically Akademy-BR and Akademy-es are local community events


Akademy 2008 logo

Akademy is the annual world summit, held each summer at varying venues in Europe60 The primary goals of Akademy are to act as a community building event, to communicate the achievements of community, and to provide a platform for collaboration with community and industry partners Secondary goals are to engage local people, and to provide space for getting together to write code KDE eV assist with procedures, advice and organization Akademy including conference, KDE eV general assembly, marathon coding sessions, BOFs birds of a feather sessions and social program BOFs are meet to discuss specific sub-projects or issues61

The KDE community held KDE One that was first conference in Arnsberg, Germany in 1997 to discuss the first KDE release Initially, each conference was numbered after the release, and not regular held Since 2003 the conferences were held once a year And they were named Akademy since 2004

The yearly Akademy conference gives Akademy Awards, are awards that the KDE community gives to KDE contributors Their purpose is to recognize outstanding contribution to KDE There are three awards, best application, best non-application and jury's award As always the winners are chosen by the winners from the previous year62 First winners received a framed picture of Konqi signed by all attending KDE developers63

Camp KDEedit

Year Venue Date
2009 Negril, Jamaica 1/17–1/18
2010 La Jolla, United States 1/15–1/22
2011 San Francisco, USA 4/4–4/5

Camp KDE is another annual contributor’s conference of the KDE community The event provides a regional opportunity for contributors and enthusiasts to gather and share their experiences It is free to all participants It is intended to ensure that KDE in the world is not simply seen as being Euro-centric The KDE eV helps travel and accommodation subsidies for presenters, BoF leaders, organizers or core contributor It is held in the North America since 2009

In January 2008, KDE 40 Release Event was held at the Google headquarters in Mountain View, California, USA to celebrate the release of KDE SC 40 The community realized that there was a strong demand for KDE events in the Americas, therefore Camp KDE was produced

Camp KDE 2009 was the premiere meeting of the KDE Americas, was held at the Travellers Beach Resort in Negril, Jamaica, sponsored by Google, Intel, iXsystem, KDE eV and Kitware The event included 1–2 days of presentations, BoF meetings and hackathon sessions64 Camp KDE 2010 took place at the University of California, San Diego UCSD in La Jolla, USA The schedule included presentations, BoFs, hackathons and a day trip It started with a short introduction by Jeff Mitchell, who was the principal organizer of the conference, talked a bit of history about Camp KDE and some statistics about the KDE community The talks of the event were relatively well attended, and an increase over the previous year to around 70 people On 1/19, the social event was a tour of a local brewery65 Camp KDE 2011 was held at Hotel Kabuki in San Francisco, USA, was co-located with the Linux Foundation Collaboration Summit The schedule included presentations, hackathons and a party at Noisebridge The conference opened with an introduction spoken by Celeste Lyn Paul66


Year Venue Date
2006 Barcelona 3/3–3/5
2007 Zaragoza 11/17–11/18
2008 A Coruña 11/21–11/23
2009 Gran Canaria 7/10–7/11
2010 Bilbao 5/7–5/9
2011 Barcelona 5/20–5/22
2012 Zaragoza 5/18–5/20
2013 Bilbao 7/11–7/12
2014 Málaga 7/11–7/12
2015 A Coruña 23/7–24/7

Akademy-es is a conference for Spanish community since 2006, aimed at Spanish speakers The event is organized by Spanish local organization KDE España organizes the event since 2008 The annual KDE España Assembly takes place during the event

Akademy-es 2006 was held at Espai Jove Bocanord in Barcelona, organized by Badopi67 Akademy-es 2007 was hosted by Hispalinux, Wireless Zaragoza, and the Zaragoza council68 Akademy-es 2008 was held at University of A Coruña, was organized by the KDE España and GPUL, sponsored by Oficina de Software Libre da Universidade da Coruña, Mancomun, Igalia, Qt Software and eyeOs69 Akademy-es 2009 was held in the University of Las Palmas de Gran Canaria70 Akademy-es 2010 was held in the Engineering Technical School of Bilbao, was organized by KDE España and Itsas There were approximately 80 participants The KDE España Assembly elected the new board consists of Albert Astals Cid president, Rafael Fernández López vice president, Aleix Pol secretary, and José Millán Soto treasurer71 Akademy-es 2011 was organized by KDE España, was sponsored by Google and Nokia, and was supported by the Linux and Todo-Linux magazines The event was held in two different locations: the Polytechnic University of Catalunya for presentations of first day, The School of Sant Marc de Sarrià for last two day72

Other community eventsedit

Akademy-BR is addressed to Brazilian community since 2010 The purpose of the meeting is to gather and organize ideas Brazilian developers on how to help KDE in Brazil Akademy-BR 2010 was organized by the local group named LiveBlue There were thirty participants from all over Brazil73 Akademy-BR 2011 is organized by KDE-MG

Year Venue Date
2010 Salvador 4/9–4/11
2011 São Paulo 11/12–11/15
Year Venue Date
2011 Bengaluru 3/9–3/13

confkdein was the first KDE and Qt conference in India The conference was organized by KDE India, was held at RV College of Engineering in Bengaluru, India The first three days of the event had talks, tutorials and interactive sessions The last two days were a focused code sprint74 The conference was opened by its main organiser Pradeepto Bhattacharya, over 300 people were at the opening talks The Lighting of the Auspicious Lamp ceremony was performed to open the conference The first session was by Lydia Pintscher who talk "So much to do – so little time" At the event, Project Neon announced return on Mar 11, 2011, provides nightly builds of the KDE Software Compilation75 Closing the conference was keynote speaker and old-time KDE developer Sirtaj

Día KDE KDE Day is an Argentinian event focused on KDE It gives talks and workshops The purpose of the event are: spread the free software movement among the population of Argentina, bringing to it the KDE community and environment developed by it, to know and strengthen KDE-AR, and generally bring the community together to have fun The event is free76

Year Venue Date
2011 Rosario 8/27

A Release party is a party, which celebrates the release of a new version of the KDE SC twice a year77 KDE also participates in other conferences that revolve around free software

KDE Softwareedit

Main article: KDE Software


Version Date Information
October 14, 1996 KDE development announced
10 July 12, 1998
20 October 23, 2000
30 April 3, 2002
40 January 11, 2008
post-4 series July 15, 2014 former KDE/KDE SC split into KDE Plasma, KDE Frameworks and KDE Applications
KDE Plasma Desktop 410, showing KWrite

In the beginning, Matthias Ettrich chose to use Trolltech’s Qt framework for the KDE project78 Other programmers quickly started developing KDE/Qt applications, and by early 1997, a few applications were being released On 12 July 1998 the first version of the desktop environment, called KDE 10, was released The original GPL licensed version of this toolkit only existed for platforms which used the X11 display server, but with the release of Qt 4, LGPL licensed versions are available for more platforms This allowed KDE software based on Qt 4 or newer versions to theoretically be distributed to Microsoft Windows and OS X79

After the switch to Qt5, the core software that was formerly referred to as KDE or KDE SC now consists of three parts:

  • KDE Plasma providing different workspaces
  • KDE Frameworks libraries on top of Qt, formerly known as 'kdelibs' or 'KDE Platform'
  • and KDE Applications

KDE Plasma Workspacesedit

Main articles: KDE Plasma 4 and KDE Plasma 5 KDE Plasma Netbook

KDE Plasma provides a unified environment for running and managing applications on different form factors like desktops, netbooks, tablets or smartphones80

Plasma first was introduced as part of the KDE4 SC, the fourth generation of graphical environments

Its successor KDE Plasma 5 has been released on July 15, 2014 and currently features the following workspaces:

  • Plasma Desktop for desktop computers,
  • Plasma Netbook for netbooks,
  • Plasma Media Center for TVs and set-top boxes,
  • Plasma Active for tablets81
  • and Plasma Mobile for smartphones and general touch-enabled devices

KDE Frameworksedit

Main articles: KDE Platform 4 and KDE Frameworks 5

In the KDE4 SC series, the KDE Platform consisted of the libraries and services needed to run KDE applications When switching to Qt 5, KDE platform was transformed into a modular set of what is now referred to as KDE Frameworks Libraries include: Solid, Nepomuk, Phonon, etc and must be licensed under one of the LGPL, BSD license, MIT License and X11 license82

While KDE Frameworks is mainly written in C++, it includes bindings for other programming languages83 Bindings use the following generic technologies:

  • Smoke: for creating bindings for Ruby, C# and PHP
  • SIP: for creating bindings for Python
  • Kross: Embedded scripting for C++ applications, with support for Ruby, Python, JavaScript, QtScript, Falcon and Java

Stable and mature bindings available for the following programming languages:84

  • Python
  • Ruby Korundum, built on top of QtRuby
  • C# However, the current framework for binding to C# and other Net languages has been deprecated, and the replacement only compiles on Windows85
  • Perl

KDE Applicationsedit

KDE Applications like Okular, KTorrent, Kexi and KDE Partition Manager are built on top of KDE Frameworks KDE applications can potentially be portable between operating systems and independent of a particular workspace or desktop environment Some brands identify application suites built up from several applications, such as KDE Network, KDE Graphics and KDE Utilities Some applications are part of the regular Software Compilation releases, others are part of Extragear and release to their own schedule

KDE neonedit

KDE neon is a software repository that uses Ubuntu LTS as a core It aims to provide the users with rapidly updated Qt and KDE software, while updating the rest of the OS components from the Ubuntu repositories at the normal pace8687 KDE maintains that it is not a "KDE distribution," but rather an up-to-date archive of KDE and Qt packages

It is provided in User, and Developer editions


WikiToLearn, abbreviated WTL, is one of KDE's newest and most unique endeavors It is a wiki based on MediaWiki, like Wikipedia that provides a platform to create and share open source textbooks The idea is to have a massive library of textbooks for anyone and everyone to use and create Its roots lay in University of Milan, where a group of physics majors wanted to share notes—then decided that it was for everyone and not just their internal friend group They now are a fully-fledged KDE project with many universities backing it

Collaborations with other organizationsedit


Amarok with information retrieved from Wikipedia

On 23 June 2005, chairman of the Wikimedia Foundation announced that the KDE community and the Wikimedia Foundation have begun efforts towards cooperation88 Fruits of that cooperation are MediaWiki syntax highlighting in Kate and accessing Wikipedia content within KDE applications, such as Amarok and Marble

On 4 April 2008, the KDE eV and Wikimedia Deutschland opened shared offices in Frankfurt89 In September 2009 KDE eV moved to shared offices with Free Software Foundation Europe in Berlin90

Free Software Foundation Europeedit

In May 2006, KDE eV became an Associate Member of the Free Software Foundation Europe FSFE90

On 22 August 2008, KDE eV and FSFE jointly announced that after working with FSFE’s Freedom Task Force for one and a half years KDE adopts FSFE’s Fiduciary Licence Agreement Using that, KDE developers can – on a voluntary basis – assign their copyrights to KDE eV91

In September 2009, KDE eV and FSFE moved into shared offices in Berlin92

Commercial enterprisesedit

Several companies actively contribute to KDE, like Collabora, Erfrakon, Intevation GmbH, Kolab Konsortium, Klarälvdalens Datakonsult AB KDAB, Blue Systems, and KO GmbH

Nokia used Calligra Suite as base for their Office Viewer application for Maemo/MeeGo93 They have also been contracting KO GmbH to bring MS Office 2007 file format filters to Calligra94 Nokia also employed several KDE developers directly – either to use KDE software for MeeGo eg KCal95 or as sponsorship

The software development and consulting companies Intevation GmbH of Germany and the Swedish KDAB use Qt and KDE software – especially Kontact and Akonadi for Kolab – for their services and products, therefore both employ KDE developers


KDE participates in freedesktoporg, an effort to standardize Unix desktop interoperability

In 2009 and 2011, GNOME and KDE co-hosted their conferences Akademy and GUADEC under the Desktop Summit label

In December 2010 KDE eV became a licensee of the Open Invention Network96

Many Linux distributions and other free operating systems are involved in the development and distribution of the software, and are therefore also active in the KDE community These include commercial distributors such as SUSE/Novell97 or Red Hat98 but also government-funded non-commercial organizations such as the Scientific and Technological Research Council of Turkey with its Linux distribution Pardus

Notable usesedit

Brazil’s primary school education system operates computers running KDE software, with more than 42,000 schools in 4,000 cities, thus serving nearly 52 million children The base distribution is called Educational Linux, which is based on Kubuntu99 Besides this, thousands more students in Brazil use KDE products in their universities KDE software is also running on computers in Portuguese and Venezuelan schools, with respectively 700,000 and one million systems reached100

Germany uses KDE software in its embassies around the world, representing around 11,000 systems Through use of Pardus, a local Linux distribution, many sections of the Turkish government make use of KDE software, including the Turkish Armed Forces,101 Ministry of Foreign Affairs,101 Ministry of National Defence,102 Turkish Police,101 and the SGK Social Security Institution of Turkey,101103 although these departments often do not exclusively use Pardus as their operating system CERN European Organization for Nuclear Research is using KDE software104

See alsoedit

  • Free software portal
  • List of KDE applications
  • Free software community


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