pulseaudio-qt is a Qt-style wrapper for libpulse. It allows querying and manipulation of various PulseAudio objects such as Sinks, Sources and Streams. It does not wrap the full feature set of libpulse.

KTextEditor provides a powerful text editor component that you can embed in your application, either as a KPart or using the KF5::TextEditor library.

This package contains XML files describing non-standard Wayland protocols used in KDE Plasma.

This is a stand-alone implementation of the Kate syntax highlighting engine. It's meant as a building block for text editors as well as for simple highlighted text rendering (e.g. as HTML), supporting both integration with a custom editor as well as a ready-to-use QSyntaxHighlighter sub-class.

KArchive provides classes for easy reading, creation and manipulation of archive formats like ZIP and TAR.

It also provides transparent compression and decompression of data, like the GZip format, via a subclass of QIODevice.

KGlobalAccel allows you to have global accelerators that are independent of the focused window. Unlike regular shortcuts, the application's window does not need focus for them to be activated.

KDBusAddons provides convenience classes on top of QtDBus, as well as an API to create KDED modules.

This library provides tools to annotate images.

ModemManagerQt provides access to all ModemManager features exposed on DBus. It allows you to manage modem devices and access to information available for your modem devices, like signal, location and messages.

This framework provides additional image format plugins for QtGui. As such it is not required for the compilation of any other software, but may be a runtime requirement for Qt-based software to support certain image formats.

This library provides primitives to interface with pseudo terminal devices as well as a KProcess derived class for running child processes and communicating with them using a pty.

Sonnet is a plugin-based spell checking library for Qt-based applications. It supports several different plugins, including HSpell, Enchant, ASpell and HUNSPELL.

As the names suggest they implement a Client respectively a Server API for the Wayland protocol. The API is Qt-styled removing the needs to interact with a for a Qt developer uncomfortable low-level C-API. For example the callback mechanism from the Wayland API is replaced by signals, data types are adjusted to be what a Qt developer expects - two arguments of int are represented by a QPoint or a QSize.

The Plasma workspace provides an application called KRunner which, among other things, allows one to type into a text area which causes various actions and information that match the text appear as the text is being typed.

This package provides Kirigami components usable by both touch and desktop experiences.

This framework contains an interface to KWallet, a safe desktop-wide storage for passwords and the kwalletd daemon used to safely store the passwords on KDE work spaces.

KTextWidgets provides widgets for displaying and editing text. It supports rich text as well as plain text.

The KNewStuff library implements collaborative data sharing for applications. It uses libattica to support the Open Collaboration Services specification.

KConfigWidgets provides easy-to-use classes to create configuration dialogs, as well as a set of widgets which uses KConfig to store their settings.

This is a DAV protocol implementation with KJobs. Calendars and todos are supported, using either GroupDAV or CalDAV, and contacts are supported using GroupDAV or CardDAV.

KCoreAddons provides classes built on top of QtCore to perform various tasks such as manipulating mime types, autosaving files, creating backup files, generating random sequences, performing text manipulations such as macro replacement, accessing user information and many more.

bluez-qt is a Qt-style library for accessing the bluez Bluetooth stack. It is used by the KDE Bluetooth stack, BlueDevil.

Prison is a Qt-based barcode abstraction layer/library and provides uniform access to generation of barcodes with data.

KAuth provides a convenient, system-integrated way to offload actions that need to be performed as a privileged user to small set of helper utilities.