KDE Products
CuteHMI

CuteHMI is essentially a collection of libraries, plugins and executables, referred to as "extensions" and "tools", glued together by Qbs components.
Platform: Linux
The KDE Frameworks

Providing everything from simple utility classes to integrated solutions for common requirements of desktop applications
Platforms: Android (partial) | FreeBSD (partial) | Linux | macOS (partial) | Windows (partial)
KDecoration2

Plugin based library to create window decorations.
Platforms: FreeBSD | Linux
KDE PIM
KDE PIM provides set of libraries and application to access and manage personal information like emails, contacts, events, etc.
Platform: Linux
The KDiagram Libraries

Libraries for creating charts and Gantt diagrams
Platforms: FreeBSD | Linux | macOS | Windows
KOpeningHours

OSM opening hours expression parser and evaluator
Platforms: Android | FreeBSD | Linux | macOS | Windows
KOSMIndoorMap

OSM indoor map QML component
Platforms: Android | FreeBSD | Linux | macOS | Windows
KWaylandServer

Qt-style API to interact with the wayland-server API
Platforms: FreeBSD | Linux
KWeatherCore

Query weather data
Platforms: Android | FreeBSD | Linux | macOS | Windows
KExiv2

Wrapper around Exiv2 library to manipulate picture metadata as EXIF and XMP
Platforms: FreeBSD | Linux | Windows
LibKmahjongg

For loading and rendering of Mahjongg tilesets and associated backgrounds
Platforms: FreeBSD | Linux | macOS | Windows
KompareDiff2

Library to compare files and strings
Platforms: FreeBSD | Linux | Windows
Libksysguard

Library to retrieve and display information on the current status of computer hardware
Platforms: FreeBSD | Linux
Qt Accessibility Client

Accessibilty tools helper library, used e.g. by screen readers
Platforms: FreeBSD | Linux
Marble

Marble framework, a library for maps, virtual globes and world atlases
Platforms: Android | Linux | macOS | Windows
Okular

Okular, the unified document viewer
Platforms: Linux | macOS | Windows
Phonon

Phonon, the Qt multimedia abstraction library.
Platforms: FreeBSD | Linux | Windows
PlasmaWaylandProtocols

Provides the xml files of non-standard wayland protocols used in Plasma.
Platforms: FreeBSD | Linux
QCA

QCA (Qt Cryptographic Architecture) provides a straightforward and cross-platform crypto API
Platforms: FreeBSD | Linux | Windows