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FREE

Qt REST Client

Qt REST Client Framework for work JSON/XML APIs.

Vitaliy Petrov

FREE

QSint

Open-source Qt Widgets Collection.

Sintegrial Technologies

FREE

PulseAudioQt

Qt wrapper for PulseAudio API.

The KDE Community

FREE

KDesignerPlugin

A tool to generate custom widget plugins for Qt Designer/Creator.

The KDE Community

FREE

JKQtPlotter

This is an extensive Qt5 Plotter framework (including a feature-richt plotter widget, a speed-optimized, but limited variant and a LaTeX equation renderer!), written fully in C/C++ and without external dependencies.

Jan Krieger

FREE

EasyQtSql

Lightweight header-only C++11 library for quick and easy SQL querying with QtSql classes.

Alexey Kramin

FREE

Cutelyst

A Web Framework, using the simple approach of Catalyst (Perl) framework.

Daniel Nicoletti

FREE

CTK

Toolkit for biomedical image computing.

Julien Finet

FREE

Breeze Icons

A freedesktop:org compatible icon theme.

The KDE Community

FREE

Purpose

Offers available actions for a specific purpose.

The KDE Community

FREE

Plasma

Foundational libraries, components, and tools of the Plasma workspaces.

The KDE Community

FREE

KXmlRpcClient

It provides client-side support for the XML-RPC protocol.

The KDE Community

FREE

KXmlGui

Framework for managing menu and toolbar actions.

The KDE Community

FREE

KWallet

Safe desktop-wide storage for passwords.

The KDE Community

FREE

KTextWidgets

Text editing widgets.

The KDE Community

FREE

KTextEditor

Full text editor component.

The KDE Community

FREE

KService

Plugin framework for desktop services.

The KDE Community

FREE

KRunner

Framework for Plasma runners.

The KDE Community

FREE

KPeople

It provides access to all contacts and aggregates them by a person.

The KDE Community

FREE

KParts

Plugin framework for user interface components.

The KDE Community

FREE

KNotifyConfig

Configuration dialog for desktop notifications.

The KDE Community

FREE

KNewStuff

Framework for downloading and sharing additional application data.

The KDE Community

FREE

KIO

Network transparent access to files and data.

The KDE Community

FREE

KInit

Helper library to speed up the start of applications on KDE workspaces.

The KDE Community

FREE

KIconThemes

Icon GUI utilities.

The KDE Community

FREE

KGlobalAccel

Global desktop keyboard shortcuts.

The KDE Community

FREE

KEmoticons

Convert text emoticons to graphical emoticons.

The KDE Community

FREE

KDESu

The user interface for running shell commands with root privileges.

The KDE Community

FREE

KDED

Central daemon of KDE workspaces.

The KDE Community

FREE

KDeclarative

Integration of QML and KDE workspaces.

The KDE Community

FREE

KConfigWidgets

It provides easy-to-use classes to create configuration dialogs.

The KDE Community

FREE

KCMUtils

Provides various classes to work with KCModules.

The KDE Community

FREE

KBookmarks

Lets you access and manipulate bookmarks stored using the XBEL format.

The KDE Community

FREE

KActivitiesStats

Library to access the usage statistics data collected by the KDE activity manager.

The KDE Community

FREE

Syndication

Parser library for RSS and Atom feeds.

The KDE Community

FREE

KUnitConversion

Converting physical units.

The KDE Community

FREE

KPty

Interfacing with pseudo terminal devices.

The KDE Community

FREE

KPackage

Installation and loading of additional content (ex: scripts, images.

The KDE Community

FREE

KJobWidgets

Widgets for showing the progress of asynchronous jobs.

The KDE Community

FREE

KImageFormats

Plugins to allow QImage to support extra file formats.

The KDE Community

FREE

KFileMetaData

It provides a simple library for extracting the text and metadata from a number of different files.

The KDE Community

FREE

KDocTools

Provides tools to generate documentation in various formats from DocBook files.

The KDE Community

FREE

KNotifications

Desktop notifications.

The KDE Community

FREE

KCrash

Graceful handling of application crashes.

The KDE Community

FREE

KContacts

It provides an API for contacts/address book data following the vCard standard (RFC 2425 / RFC 2426).

The KDE Community

FREE

KCompletion

Powerful completion framework, including completion-enabled line-edit and combo box.

The KDE Community

FREE

KAuth

Execute actions as a privileged user.

The KDE Community

FREE

KActivities

Core components for the KDE Activity concept.

The KDE Community