KDE

KDE
Name	KDE
Developer	KDE e.V.
Released	14 October 1996
Programming language	C++, QML, Python
Operating system	Linux, BSD, Windows
Genre	Desktop environment, Software suite
License	GPL, LGPL, BSD, MIT License

KDE. It is a prominent international free software community producing an integrated set of cross-platform applications designed to run on Linux, Unix-like operating systems, Microsoft Windows, and Android. The project is well known for its Plasma Desktop, a modern desktop environment for Linux PCs, and a comprehensive ecosystem of end-user applications and development frameworks. Governed by the non-profit KDE e.V., the community emphasizes usability, accessibility, and innovation, contributing significantly to the broader open-source software landscape.

Overview

The project's primary offering is the Plasma desktop, which serves as the graphical front-end for many distributions like openSUSE, Kubuntu, and Fedora KDE Spin. Beyond the desktop shell, it provides a vast software suite, KDE Applications, which includes the Dolphin file manager, Konsole terminal emulator, and Kate text editor. These tools are built upon a core set of libraries and middleware known as KDE Frameworks, which offer reusable components for developers. The entire software stack is distributed under free software licenses such as the GNU General Public License and the GNU Lesser General Public License, ensuring user freedom.

History

The project was founded in 1996 by Matthias Ettrich, who proposed creating a consistent, user-friendly desktop for Unix systems. The initial name stood for "K Desktop Environment," with the 'K' originally representing the Kool Desktop Environment but soon simply denoting it. The first major release, KDE 1.0, arrived in 1998. A significant historical shift occurred in 2009 with the introduction of KDE Software Compilation 4, which included the new Plasma workspace and the Phonon multimedia framework. In 2014, the branding was streamlined, and the core technologies were rebundled into the distinct products KDE Plasma, KDE Frameworks, and KDE Applications.

Software

The software portfolio is extensive, covering nearly every desktop computing need. The Plasma family itself includes variants like Plasma Mobile for smartphones and Plasma Bigscreen for televisions. Key applications include the Kontact personal information manager, the Krita digital painting program, the Kdenlive video editor, and the Amarok music player. For system administration, tools like KDE System Settings and KInfoCenter are provided. The Calligra Suite offers an integrated office suite, while Okular serves as a universal document viewer. Development is supported by tools such as KDevelop and Qt Creator.

Community and development

The community is a global, volunteer-driven effort coordinated by KDE e.V., a German non-profit association based in Berlin. Development follows a meritocratic model, with contributions managed through platforms like GitLab and discussed on mailing lists and forums. Major collaborative events include the annual Akademy conference and regular sprints. The community also places strong emphasis on localization and accessibility, with teams working on translations and features for users with disabilities. Partnerships with entities like The Document Foundation (developers of LibreOffice) and Blue Systems are common.

Technology

Technologically, the software is built primarily on the Qt toolkit, a cross-platform application framework developed by The Qt Company. The core libraries are organized into KDE Frameworks, which provide solutions for hardware integration, file system access, and graphical user interface components. Underlying technologies include the Solid hardware abstraction layer, the KIO network-transparent I/O system, and the KWin window manager and compositor. For multimedia, the Phonon framework provides a uniform API, while Kirigami is a UI framework for creating adaptive applications that run on both desktop and mobile platforms.

Related projects

Several independent but affiliated projects leverage its technologies. LXQt is a lightweight desktop environment that uses Qt and some KDE Frameworks. The Trinity Desktop Environment is a fork of the older KDE Software Compilation 3 series. The KaOS distribution is built exclusively around its software stack. Furthermore, the community's work influences other major environments; for instance, the GNOME project's GVfs virtual filesystem shares conceptual goals with KIO. The KDE neon project provides a rapidly updated showcase distribution, and many applications are also available for other platforms via the Microsoft Store and Google Play.

Category:Free software Category:Desktop environments Category:KDE