KDE Platform

KHTML is a discontinued browser engine that was developed by the KDE project. It originated as the engine of the Konqueror browser in the late 1990s, but active development ceased in 2016. It was officially discontinued in 2023.

Linux distribution with KDE Plasma, based on Ubuntu

thumb|As the GNU C Library serves as a wrapper for [[Linux kernel system calls, so does KIO serve as a further wrappers for its specific tasks.]]

KDE multimedia framework

Akonadi is a storage service for personal information management (PIM) data and metadata named after the oracle goddess of justice in Ghana. It is one of the “pillars” (core technologies) behind the KDE SC 4 project, although it is designed to be used in any desktop environment. It is extensible and provides concurrent read, write, and query access.

aRts (which stands for analog real time synthesizer) is an audio framework that is no longer under development. It was best known for previously being used in K Desktop Environment 2 and 3 to simulate an analog synthesizer.

Collection of software libraries and frameworks

KXMLGUI or KDE XMLGUI is a framework for designing the user interface of an application using XML, using the idea of actions.

multilingual spell checker program written in C++

image processing application programming interface

scripting framework for KDE Frameworks

ThreadWeaver is a system library initially developed for KDE Software Compilation 4 and later refactored for KDE Frameworks 5.