Attica
|
Open Collaboration Services API
|
|
API
|
LGPLv2.1+
|
Avahi
|
Qt4 Bindings for avahi, the D-BUS Service for Zeroconf and Bonjour
|
|
Bindings,
Communication
|
LGPLv2.1+
|
Baloo
|
Baloo is a file indexing and searching framework
|
|
Development
|
LGPLv2.1+
|
BluezQt
|
Qt wrapper for BlueZ 5 DBus API
|
|
Communication
|
LGPLv2.1+
|
Breeze Icons
|
Breeze icon theme
|
|
Artwork
|
LGPLv2.1+
|
Cutelyst
|
A Web Framework, using the simple approach of Catalyst (Perl) framework.
|
|
Web
|
LGPLv2
|
CuteReport
|
Report solution
|
|
Printing
|
GPLv3+,
Commercial
|
google-diff-match-patch
|
Diff, Match and Patch libraries for Plain Text
|
|
Text
|
Apache2.0
|
Echo Nest Client
|
Qt library for communicating with The Echo Nest
|
|
Multimedia,
API
|
LGPL
|
Enginio
|
Enginio client library for Qt platfom. Provides both Qt C++ and QML APIs to client applications.
|
|
Data,
API,
QML
|
GPLv3,
LGPLv2.1
|
eXaro
|
Report engine
|
|
Printing
|
GPLv3,
LGPLv3
|
Extra CMake Modules
|
Extra CMake modules
|
|
Development
|
LGPLv2.1+
|
Framework Integration
|
Workspace and cross-framework integration plugins
|
|
Desktop
|
LGPLv2.1+
|
GCF
|
Generic component framework
|
|
Development
|
GPLv2,
GPLv3,
Commercial
|
GLC lib
|
Library for high performance 3D applications based on OpenGL
|
|
Graphics
|
LGPLv3+
|
injeqt
|
Dependency injection
|
|
Development
|
LGPLv2.1
|
Jreen
|
XMPP client library
|
|
Communication
|
GPLv2+
|
KActivities
|
Runtime and library to organize the user work in separate activities
|
|
Desktop
|
LGPLv2.1+
|
KActivitiesStats
|
A library for accessing the usage data collected by the activities system.
|
|
Desktop
|
LGPLv2.1+
|
KArchive
|
File compression
|
|
Data
|
LGPLv2.1+
|
KAuth
|
Abstraction to system policy and authentication features
|
|
Security,
API
|
LGPLv2.1+
|
KBookmarks
|
Support for bookmarks and the XBEL format
|
|
Web
|
LGPLv2.1+
|
KCalendarCore
|
The KDE calendar access library
|
|
|
LGPLv2.1+
|
KCMUtils
|
Utilities for working with KCModules
|
|
Desktop
|
LGPLv2.1+
|
KCodecs
|
Text encoding
|
|
Text
|
LGPLv2.1+
|
KCompletion
|
Text completion helpers and widgets
|
|
Text,
Widgets
|
LGPLv2.1+
|
KConfig
|
Configuration system
|
|
Development
|
LGPLv2.1+
|
KConfigWidgets
|
Widgets for configuration dialogs
|
|
Development,
Widgets
|
LGPLv2.1+
|
KContacts
|
Support for vCard contacts
|
|
|
LGPLv2.1+
|
KCoreAddons
|
Addons to QtCore
|
|
Text,
Data
|
LGPLv2.1+
|
KCrash
|
Support for application crash analysis and bug report from apps
|
|
Development
|
LGPLv2.1+
|
KDAV
|
An DAV protocol implementation with KJobs
|
|
|
LGPLv2.1+
|
KDBusAddons
|
Addons to QtDBus
|
|
Desktop
|
LGPLv2.1+
|
KDDockWidgets
|
Qt dock widget library
|
|
API,
Development
|
GPLv2.0+,
Commercial
|
KDeclarative
|
Provides integration of QML and KDE Frameworks
|
|
Desktop,
QML
|
LGPLv2.1+
|
KDED
|
Extensible deamon for providing system level services
|
|
Desktop
|
LGPLv2.1+
|
KDE 4 Libraries
|
KDE Development Platform
|
|
Desktop
|
LGPLv2.1+
|
KDELibs 4 Support
|
Porting aid from KDELibs4
|
|
Development
|
LGPLv2.1+
|
KDE PIM Libraries
|
KDE PIM Libraries
|
|
Data,
Communication
|
LGPLv2.1+
|
KDesignerPlugin
|
Tool to generate custom widget plugins for Qt Designer/Creator
|
|
Development
|
LGPLv2.1+
|
KDESU
|
Integration with su for elevated privileges
|
|
Security,
Desktop
|
LGPLv2.1+
|
KDE WebKit
|
KDE Integration for QtWebKit
|
|
Web
|
LGPLv2.1+
|
KDE DNS-SD
|
Abstraction to system DNSSD features
|
|
Bindings,
Communication
|
LGPLv2.1+
|
KDocTools
|
Documentation generation from docbook
|
|
Development,
Text
|
LGPLv2.1+
|
KD Reports
|
Report generator
|
|
Printing
|
LGPLv2.1+,
Commercial
|
KD SOAP
|
Client-side and server-side SOAP component
|
|
API,
Development
|
LGPLv2.1+,
Commercial
|
KEmoticons
|
Support for emoticons and emoticons themes
|
|
Artwork
|
LGPLv2.1+
|
KF5Umbrella
|
CMake convenience functions for KDE Frameworks
|
|
Development
|
LGPLv2.1+
|
KFileAudioPreview
|
Preview of audio files
|
|
Multimedia
|
LGPLv2.1+
|
KFileMetaData
|
A file metadata and text extraction library
|
|
Data
|
LGPLv2.1+
|
KGlobalAccel
|
Add support for global workspace shortcuts
|
|
Desktop
|
LGPLv2.1+
|
KDE GUI Addons
|
Addons to QtGui
|
|
Widgets
|
LGPLv2.1+
|
KHolidays
|
Holiday calculation library
|
|
Data
|
LGPLv2.1+
|
KHTML
|
KHTML APIs
|
|
Web
|
LGPLv2.1+
|
KI18n
|
Advanced internationalization framework
|
|
Development,
Text
|
LGPLv2.1+
|
KIconThemes
|
Support for icon themes
|
|
Artwork
|
LGPLv2.1+
|
KIdleTime
|
Monitoring user activity
|
|
Desktop
|
LGPLv2.1+
|
KImageFormats
|
Image format plugins for Qt
|
|
Graphics,
Data
|
LGPLv2.1+
|
KInit
|
Process launcher to speed up launching KDE applications
|
|
Desktop
|
LGPLv2.1+
|
KIO
|
Resource and network access abstraction
|
|
Communication,
Data
|
LGPLv2.1+
|
Kirigami
|
QtQuick plugins to build user interfaces based on the KDE human interface guidelines
|
|
Mobile,
QML
|
LGPLv2.1+
|
KItemModels
|
Models for Qt Model/View system
|
|
Development
|
LGPLv2.1+
|
KItemViews
|
Widget addons for Qt Model/View
|
|
Widgets,
Development
|
LGPLv2.1+
|
KJobWidgets
|
Widgets for tracking KJob instances
|
|
Widgets
|
LGPLv2.1+
|
KJS
|
Support for JS scripting in applications
|
|
Web,
Scripting
|
LGPLv2.1+
|
KJSEmbed
|
Embedded JS
|
|
Web,
Scripting
|
LGPLv2.1+
|
KLFBackend
|
KLatexFormula backend library
|
|
Graphics,
Data
|
GPLv2+
|
KMediaPlayer
|
Plugin interface for media player features
|
|
Multimedia
|
LGPLv2.1+
|
KNewStuff
|
Support for downloading application assets from the network
|
|
Data,
Communication
|
LGPLv2.1+
|
KNotification
|
Abstraction for system notifications
|
|
Desktop
|
LGPLv2.1+
|
KNotifyConfig
|
Configuration system for KNotify
|
|
Desktop
|
LGPLv2.1+
|
KPackage Framework
|
Library to load and install packages of non binary files as they were a plugin
|
|
Development
|
LGPLv2.1+
|
KParts
|
Document centric plugin system
|
|
Widgets
|
LGPLv2.1+
|
KPeople
|
Provides access to all contacts and the people who hold them
|
|
Communication,
Data
|
LGPLv2.1+
|
KPlotting
|
Lightweight plotting framework
|
|
Graphics
|
LGPLv2.1+
|
KPrintUtils
|
Print dialogs
|
|
Printing
|
LGPLv2.1+
|
KPty
|
Pty abstraction
|
|
Communication
|
LGPLv2.1+
|
kQOAuth
|
OAuth 1.0 authentication
|
|
Security,
API
|
LGPLv2.1+
|
KQuickCharts
|
A QtQuick module providing high-performance charts.
|
|
|
LGPLv2.1+
|
Kross
|
Multi-language application scripting
|
|
Scripting
|
LGPLv2.1+
|
KRunner
|
Parallelized query system
|
|
Desktop
|
LGPLv2.1+
|
KService
|
Advanced plugin and service introspection
|
|
Development
|
LGPLv2.1+
|
KTextEditor
|
Advanced embeddable text editor
|
|
Text,
Widgets
|
LGPLv2.1+
|
KTextWidgets
|
Advanced text editing widgets
|
|
Text,
Widgets
|
LGPLv2.1+
|
KUnitConversion
|
Support for unit conversion
|
|
Data
|
LGPLv2.1+
|
KWallet Framework
|
Secure and unified container for user passwords
|
|
Security
|
LGPLv2.1+
|
KWayland
|
Qt-style API to interact with the wayland-client and wayland-server API
|
|
Desktop
|
LGPLv2.1+
|
KWidgetsAddons
|
Addons to QtWidgets
|
|
Widgets
|
LGPLv2.1+
|
KWindowSystem
|
Access to the windowing system
|
|
Desktop
|
LGPLv2.1+
|
KXMLGUI
|
User configurable main windows
|
|
Widgets
|
LGPLv2.1+
|
KXmlRpcClient
|
Interaction with XMLRPC services
|
|
Communication
|
LGPLv2.1+
|
Communi
|
IRC framework
|
|
Communication
|
BSD
|
LibEngsas
|
Widgets for technical applications
|
|
Widgets
|
LGPLv2.1+
|
Libkexiv2
|
Qt bindings for Exiv2, the library to manipulate picture meta data
|
|
Graphics,
Bindings
|
GPLv2+
|
Last.fm
|
A Qt C++ library for the Last.fm webservices
|
|
API,
Multimedia
|
GPLv3
|
libmm-qt
|
Qt wrapper for ModemManager DBus API
|
|
Communication,
Bindings
|
LGPL
|
libnm-qt
|
Qt wrapper for NetworkManager DBus API
|
|
Communication,
Bindings
|
LGPL
|
libqemf
|
Qt based image reader for Enhanced-Format Metafiles (*.emf)
|
|
Graphics
|
GPLv3,
Commercial
|
QtLua
|
Framework for embedding Lua in Qt applications
|
|
Scripting
|
LGPLv3+
|
Qxt
|
Utility classes for Qt
|
|
Development,
Widgets
|
BSD-3-Clause
|
LimeReport
|
Report printing engine
|
|
Printing
|
GPLv3+,
LGPLv2.1+
|
Log4Qt
|
C++ port of the Log4j logging framework
|
|
Development,
Logging
|
Apache-2.0
|
LXQt Wallet
|
Secure storage of data in an internal storage system or in KDE KWallet or GNOME libsecret
|
|
Security
|
BSD
|
Marble
|
Marble Virtual Globe
|
|
Widgets
|
LGPLv2.1
|
ModemManagerQt
|
Qt wrapper for ModemManager API
|
|
Communication,
Bindings
|
LGPLv2.1+
|
NetworkManagerQt
|
Qt wrapper for NetworkManager API
|
|
Communication,
Bindings
|
LGPLv2.1+
|
Noron
|
Remote object sharing
|
|
Development
|
GPLv3,
LGPLv3
|
Nut
|
Object relational mapper for Qt5
|
|
Data
|
GPLv3,
LGPLv3
|
O2
|
A library encapsulating OAuth 1.0 and 2.0 client authentication flows
|
|
Security,
Bindings
|
Simplified BSD License
|
Oxygen Icons
|
Oxygen icon theme
|
|
Artwork
|
LGPLv2.1+
|
PackageKit
|
Qt bindings for PackageKit, the backend for managing software installation
|
|
Bindings
|
GPLv2+
|
Phonon
|
Phonon Multimedia Platform Abstraction
|
|
Multimedia
|
LGPLv2.0+
|
Plasma Framework
|
Plugin based UI runtime used to write primary user interfaces
|
|
Desktop
|
LGPLv2.1+
|
Polkit-qt-1
|
Qt bindings for PolicyKit
|
|
Bindings
|
LGPLv2.1+
|
Poppler
|
Qt bindings for Poppler, the PDF rendering library
|
|
Bindings
|
GPLv2+
|
Prison
|
Barcode abstraction layer providing uniform access to generation of barcodes
|
|
Graphics,
Printing
|
LGPLv2.1+
|
PulseAudioQt
|
Qt wrapper for PulseAudio API
|
|
Multimedia,
Bindings
|
LGPLv2.1+
|
Purpose
|
Offers available actions for a specific purpose
|
|
Desktop
|
LGPLv2.1+
|
PythonQt
|
Framework for embedding Python in Qt applications
|
|
Bindings
|
LGPLv2.1+
|
QCA
|
Qt Cryptographic Architecture
|
|
Security
|
LGPLv2.1+
|
QCustomPlot
|
Plotting widget for Qt
|
|
Graphics
|
GPLv3+
|
QDataCube
|
Datacube for Qt
|
|
Data,
Widgets
|
LGPL
|
QDecimail
|
Decimal arithmetic library for Qt framework
|
|
Data
|
LGPL v2.1
|
QDjango
|
ORM and HTTP request/response framework
|
|
Web
|
GPLv2.1+
|
QHttpEngine
|
HTTP server and utilities
|
|
Web
|
MIT
|
Blitz KDE
|
Image Effect Library for KDE
|
|
Graphics
|
BSD 3-Clause
|
QJson
|
JSON parser for Qt
|
|
Data
|
LGPL
|
qlogsystem
|
qlogsystem is a very efficient and easy to use logger library
|
|
Development,
Logging
|
LGPLv2.1
|
QMarkdownTextEdit
|
C++ Qt QPlainTextEdit widget with markdown highlighting and some other goodies.
|
|
Text
|
MIT
|
QMdnsEngine
|
Multicast DNS library for Qt
|
|
Web
|
MIT
|
QOAuth
|
Library for OAuth authorization scheme
|
|
Security,
API
|
LGPL
|
QQC2StyleBridge
|
QtQuickControls 2 style that integrates with the desktop
|
|
|
LGPLv2.1+
|
QScintilla
|
Qt port of Scintilla C++ editor control
|
|
Text
|
GPLv2,
GPLv3,
Commercial
|
QSint
|
Open source Qt Widgets Collection
|
|
Widgets
|
LGPL
|
QSqlMigrator
|
QSqlMigrator - keep track of your database migrations
|
|
Data
|
LGPLv2.1,
GPLv3
|
QtGStreamer
|
Qt bindings for GStreamer
|
|
Bindings,
Multimedia
|
LGPLv2.1+
|
QtAccountsService
|
Qt-style API for freedesktop.org's AccountsService DBus service
|
|
Development
|
LGPLv3+
|
QtArg
|
Command line parsing
|
|
Development
|
MIT
|
QtAV
|
A cross-platform media playback framework based on Qt and FFmpeg.
|
|
Multimedia
|
LGPLv2.1
|
QtDropbox
|
Qt Dropbox
|
|
API
|
LGPLv3+
|
QtFFmpegWrapper
|
Qt FFmpeg Wrapper for video frame encoding and decoding
|
|
Multimedia
|
BSD-3-Clause
|
QtFirebase
|
An effort to bring the Firebase C++ API to Qt + QML
|
|
QML,
Mobile,
API,
Data
|
MIT
|
Qtilities
|
Building blocks for Qt applications
|
|
Logging,
Widgets
|
GPLv3,
LGPLv2.1,
Commercial
|
Qt Installer Framework
|
Tools and utilities to create installers for the supported desktop Qt platforms.
|
|
Development
|
LGPLv2.1+
|
QtKeychain
|
Platform-independent Qt API for storing passwords securely
|
|
Security
|
BSD-2
|
QtPromise
|
Promises/A+ implementation for Qt/C++
|
|
Data,
Development
|
MIT
|
QtRPT
|
Report engine
|
|
Printing
|
Apache 2.0
|
QtWebApp
|
Web application framework similar to Java Servlet API
|
|
Web
|
LGPLv3
|
QtWebKit
|
Qt port of WebKit
|
|
Web
|
GPLv3,
LGPLv2.1+
|
QTweetLib
|
Library to access Twitter
|
|
Communication
|
GPLv2
|
QuaZIP
|
Qt/C++ wrapper for ZIP/UNZIP package
|
|
Data
|
LGPLv3+
|
Qwt
|
Widgets for Technical Applications
|
|
Widgets,
Graphics
|
Qwt License 1.0
|
QwtPlot3D
|
3D plot widgets
|
|
Graphics
|
zlib
|
QXmpp
|
XMPP client and server library
|
|
Communication
|
LGPL 2.1 or later
|
QxOrm
|
Qt-based Object Relational Mapping (ORM)
|
|
Data
|
GPLv3,
Commercial
|
Qyoto
|
Mono bindings for core Qt libraries
|
|
Bindings
|
LGPLv2.1+
|
Snorenotify
|
Snorenotify notification framework
|
|
Communication
|
LGPLv3
|
Solid
|
Hardware integration and detection
|
|
Development
|
LGPLv2.1+
|
Sonnet
|
Support for spellchecking
|
|
Text
|
LGPLv2.1+
|
Soprano
|
Qt/C++ RDF framework
|
|
Data
|
LGPLv2.1+
|
Coin
|
Qt interface for 3D visualization library Coin
|
|
Graphics,
Bindings
|
GPL
|
SQLate
|
type-safe template-based SQL support using Qt
|
|
Data
|
LGPL
|
Syndication
|
An RSS/Atom parser library
|
|
|
LGPLv2.1+
|
Syntax Highlighting
|
Syntax Highlighting
|
|
Text
|
LGPLv2.1+
|
Tasks
|
a simple single header library that allows async programming in Qt/C++ using tasks and continuations
|
|
Development
|
BSD
|
Telepathy
|
Qt bindings for the Telepathy communications framework
|
|
Bindings,
Communication
|
LGPLv2.1+
|
ThreadWeaver
|
High-level multithreading framework
|
|
Development
|
LGPLv2.1+
|
TreeFrog
|
Framework for developing web applications
|
|
Web
|
BSD-3-Clause
|
Tufao
|
An asynchronous web framework for C++ built on top of Qt
|
|
Web
|
Library: LGPLv2, Documentation and Examples: MIT
|
VLC-Qt
|
VLC-Qt - a simple library to connect Qt application with libVLC
|
|
Bindings,
Multimedia
|
LGPLv3
|
cairoQPaintDevice
|
QPaintDevice implementation that uses Cairo Graphics Library as a backend
|
|
Graphics
|
GPLv3+
|
CTK
|
Toolkit for biomedical image computing
|
|
Graphics,
Widgets,
Data
|
Apache-2.0
|
CuteTest
|
Unit testing for Qt
|
|
Development
|
LGPLv3+,
BSD-3-clause,
Apache-2.0
|
EasyQtSql
|
A lightweight header-only C++11 library for quick and easy SQL querying with QtSql
|
|
Data
|
MIT
|
FF7tk
|
Toolkit for working with data from Final Fantasy 7
|
|
Data
|
GPLv3+
|
KD Reports
|
Report generator
|
|
Printing
|
LGPLv2.1+,
Commercial
|
Kode
|
Code generation library
|
|
Development,
Data
|
LGPLv2.1+
|
TmdbQt
|
Library for querying The Movie Database API (themoviedb.org)
|
|
API,
Data
|
LGPLv2.1+
|
Mime Type
|
Backport of the Qt 5 mimetypes api to Qt 4
|
|
Development
|
LGPLv2.1,
GPLv3
|
neiasound
|
OpenAl wrapper for Qt apps and games
|
|
Multimedia,
Bindings
|
BSD 2-clause
|
QDataCube
|
Datacube for Qt
|
|
Data,
Widgets
|
LGPL
|
qdbf
|
Library for handling dbf files
|
|
Data
|
LGPLv2.1+
|
QFB
|
Client library for accessing Facebook graph API
|
|
API
|
GPLv3+
|
QicsTable
|
High performance Qt table widget
|
|
Widgets,
Data
|
GPLV3+,
LGPLv2.1+,
Commercial,
Evaluation
|
QJsonRpc
|
Implementation of the JSON-RPC protocol
|
|
Data,
Communication
|
LGPLv2.1+
|
QSerialDevice
|
Cross-platform library for accessing serial devices
|
|
Communication
|
GPLv2+
|
QSint
|
Open source Qt Widgets Collection
|
|
Widgets
|
LGPL
|
QSkinny
|
lightweight Qt UI library
|
|
Development
|
LGPLv2
|
QFtp
|
FTP implementation
|
|
Communication
|
LGPLv2.1,
GPLv3,
Commercial
|
QtGamepad
|
Reading input from gamepad devices
|
|
Communication
|
MIT
|
QtGoogleSpeech
|
Library to use Google Speech service
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|
API
|
LGPL
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QHttp
|
HTTP implementation
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|
Web
|
LGPLv2.1,
GPLv3,
Commercial
|
QtModeling
|
Framework for supporting model-driven engineering
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|
Development
|
LGPLv2.1,
GPLv3
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qtoolbox
|
Set of tools for Qt development
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|
Data,
Logging
|
Apache-2.0
|
qtoptimization
|
Module for optimization algorithms
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|
Development
|
LGPLv2.1,
GPLv3
|
QtORM
|
Object relational model inspired from Django
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|
Web,
Data
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LGPLv2.1
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Qt REST Client
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Qt REST Client Framework for work JSON/XML APIs
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|
Communication,
API
|
MIT
|
QtRPT
|
Report engine
|
|
Printing
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Apache 2.0
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QtSpeech
|
Cross-platform API to access and use system text-to-spech engines
|
|
Bindings,
Multimedia
|
LGPLv3+
|
qTUIO
|
Interface to TUIO, the protocol for tangible multi-touch surfaces
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|
Mobile
|
GPLv3+
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qtuiotouch
|
Qt plugin for TUIO input devices
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|
Mobile
|
MIT
|
QtUnits
|
Qt runtime unit conversion library built using (and compatible with) Boost::Units.
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|
Data
|
BSD 2-clause
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QtVkontakte
|
Qt wrapper around Vkontakte Android SDK (https://vk.com, Russian social network)
|
|
Mobile
|
GPL2
|
QtWebSockets
|
Qt implementation of WebSockets client and server.
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|
Communication
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LGPLv2.1+
|