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Add-ons

These are third party add-ons and libraries for Qt:

Open Source License:

Third party add-ons and libraries under open source licenses:

Project Description License Type
Qt Xlsx [github.com] C++ library for .xlsx file reader and writer based on Qt5 MIT
GLC_lib [glc-lib.net] C++ library for high performance 3D application based on OpenGL and Qt4 GUI LGPL
libcommuni [communi.github.io] A cross-platform IRC framework written with Qt and C++ LGPL
QextSerialPort Provides an interface to old fashioned serial ports MIT
QTermWidget [qtermwidget.sourceforge.net] Qt-based console similar to Konqueror; runs on Qt/Embedded GPL
QtWebSockets [qt.gitorious.org] Qt module implementing the RFC6455 WebSocket specification. Can be used in both client and server applications. LGPL
Qwt [qwt.sourceforge.net] Qt Widgets for Technical Applications (2D plots, sliders, dials, compasses, thermometers, …) Qwt License
qtoolbox [github.com] qtoolbox is a set of tools for everyday Qt development. A “swiss army knife”. Designed to be minimalistic, does “just what promised, nothing more” Apache License Version 2.0
Qt Cryptographic Architecture [delta.affinix.com] QCA aims to provide a straightforward and cross-platform crypto API, using Qt datatypes and conventions which allow to cypher with RSA, AES, Blowfish, etc LGPL
QScintilla [riverbankcomputing.co.uk]add-on which allow to highlight syntax in Qt-applications (port from Scintilla with more Qt-like API) LGPL
QJson [qjson.sourceforge.net] QJson a easy way to manage JSON in QVariant/QVariantMap/QVariantList LGPL
QuaZIP [quazip.sourceforge.net] Qt wrapper for zip/unzip package GPL, LGPL
Log4Qt [log4qt.sourceforge.net] Qt port of the Apache Software Foundation Log4j package Apache License Version 2.0
Log4Qt fork [gitorious.org] Qt port of the Apache Software Foundation Log4j package, Extension of the original Log4Qt project (SimpleTimeLayout, SignalAppender, DatabaseAppender, DatabaseLayout , Telnet appender, ..) Apache License Version 2.0
LibQxt [libqxt.org] LibQxt is an extension library for Qt providing a suite of cross-platform utility classes to add functionality not readily available in Qt (Logging Framework, Web Service Framework, etc.) Common Public License v1.0, LGPL
QSerialDevice [gitorious.org] cross-platform library for serial devices based on Qt4 (is frozen, see new QtSerialPort) GPL
QtSerialPort add-on tools for Qt4/Qt5, which provides a single interface for both hardware and virtual serial ports LGPL
KArchive [blogs.kde.org] Gzip/bzip2 compression QIODevice, and support for ZIP, TAR, AR and 7Zip archives LGPL
Novile [github.com]Port of Ace source code web editor to Qt via Qt WebKit. Has API wrapper with properties and signals&slots LGPL
CuteReport [cute-report.com]Similar to Jasper and Crystal Reports. Consists of two parts: core library and template designer. Both are totally modular and theirs functionality can be simply extended by writing additional modules. Can be easily used with any Qt application. Totally abstract of used data and can use as storage: file system, database, version control systems, etc. GPL v3
QtRPT [sourceforge.net]Is the easy-to-use print report engine written in C++ QtToolkit. It allows combining several reports in one XML file. For separately taken field, you can specify some condition depending on which this field will display in different font and background color, etc. The project consists of two parts: report library QtRPT and report designer application QtRptDesigner. Report file is a file in XML format. The report designer makes easy to create report XML file. LGPL

Commercial License:

Third party add-ons and libraries under commercial licenses:

Library Description Dual Licensing
QicsTable [ics.com] High Performance Table for QtNo
QtitanChart [devmachines.com] Featured Charts component for Qt with Cartesian and Polar coordinate systems No
QtitanRibbon [devmachines.com] Microsoft Ribbon UI implementation under QtNo
QtitanDataGrid [devmachines.com] Featured DataGrid component for Qt with grouping, sorting, zooming, printing and much moreNo
QtitanMultimedia [devmachines.com] Adds multimedia technologies (Adobe Flash, …) to QtNo
Q7Goodies [strixcode.com] Provides Windows 7 features like jump list, taskbar thumbnails, thumbnail toolbar and more in a Qt wayNo
KD Tools [kdab.com] Provides a number of easy-to-use widgets and non-gui classesYes (Commercial / GPL / LGPL)
KD Chart [kdab.com] Creates business charts (Stock Charts, Gantt, etc.), utilize the Qt Model-View modelYes (Commercial / GPL)
KD Reports [kdab.com] Generates printable and exportable reports from code and from XML descriptions. Can use Qt Model-View modelsYes (Commercial / GPL)
KD SOAP [kdab.com] A tool for creating client applications for web services, and service implementationsYes (Commercial / GPL / LGPL)
NCReport [nocisoft.com] Is a report generator (SQL or file based) with GUI designer, supports several output formatsNo
Qtilities [jpnaude.github.io]Provides building blocks for Qt applications, allowing rapid application development. Yes (Commercial / GPL / LGPL)
QxOrm [qxorm.com] QxOrm is a C++ library designed to provide Object Relational Mapping (ORM) feature to C++ and Qt users (persistence, serialization, reflection) Yes (Commercial / GPL v3)

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