Browse free open source Object Oriented software and projects below. Use the toggles on the left to filter open source Object Oriented software by OS, license, language, programming language, and project status.

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  • 1
    STD Foundation Classes

    STD Foundation Classes

    Object oriented frameworks - PowerBuilder, PowerServer & InfoMaker!

    by Chris Pollach (http://chrispollach.blogspot.ca) A fully integrated "object oriented" set of PB Classes for the following products: PowerBuilder, PowerClient & PowerServer. The framework greatly enhances the development process by making the PowerBuilder developer significantly more productive! License: https://sourceforge.net/projects/stdfndclass/files/License (Open Source) => Updated version of the STD "Integrated" framework 2026R1 build 2026.1.0.467 was released to production on 2026-01-09. https://sourceforge.net/projects/stdfndclass/files/FrameWork/Integrated => The STD Framework "Example Apps" 2026 R1 latest builds https://chrispollach.blogspot.com/2026/03/updated.html => Updated version of the STD "Order Entry" example App 2025R2 build 2026.1.0.647 was released on 2026-04-08. https://sourceforge.net/projects/stdfndclass/files/Applications/PowerBuilder/OrderEntry
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    Downloads: 64 This Week
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  • 2

    OpenXava

    Automatic frontend engine for Java

    Automatic frontend engine for Java. Write just the domain classes in plain Java. Get a web application ready for production.
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    Downloads: 17 This Week
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  • 3
    MyBatis

    MyBatis

    MyBatis SQL mapper framework for Java

    MyBatis is a first class persistence framework with support for custom SQL, stored procedures and advanced mappings. MyBatis eliminates almost all of the JDBC code and manual setting of parameters and retrieval of results. MyBatis can use simple XML or Annotations for configuration and map primitives, Map interfaces and Java POJOs (Plain Old Java Objects) to database records. Every MyBatis application centers around an instance of SqlSessionFactory. A SqlSessionFactory instance can be acquired by using the SqlSessionFactoryBuilder. SqlSessionFactoryBuilder can build a SqlSessionFactory instance from an XML configuration file, or from a custom prepared instance of the Configuration class. Building a SqlSessionFactory instance from an XML file is very simple. It is recommended that you use a classpath resource for this configuration, but you could use any InputStream instance, including one created from a literal file path or a file:// URL.
    Downloads: 2 This Week
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  • 4
    TTMath - a bignum library for C++
    A bignum library written in the C++ programming language as templates. It provides standard mathematical operations like add, sub, mul, div, pow etc. with the big integer and big floating point numbers.
    Downloads: 16 This Week
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    Eclipse and Java Video Tutorials

    Video tutorials for learning Java OOP programming with Eclipse.

    Free video screencam tutorials for Eclipse and Java. Includes "Eclipse and Java for Total Beginners", "Using the Eclipse Workbench", "Introducing Persistence", and "Using the Debugger". Intended for beginning and intermediate users and programmer. You can view the Total Beginners tutorials on Youtube at https://www.youtube.com/playlist?list=PLv6UtFrA7VEu4PtzJaGHHSeZBi6mdJtwv. You can read descriptions and download all of the tutorials at http://eclipsetutorial.sourceforge.net.
    Downloads: 7 This Week
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  • 6
    STLSoft C and C++ Libraries
    Robust, Lightweight, Cross-platform, Template Software. STLSoft is a collection of STL and standard library extensions, and facades over operating-system and 3rd-party APIs.
    Downloads: 6 This Week
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  • 7
    Distributed, object-oriented and event-driven LabVIEW based Control System Framework with some SCADA functionality. Documentation about the CS framework is provided via a dedicated web page, http://wiki.gsi.de/cgi-bin/view/CSframework/WebHome . Please note: This project is deprecated an no longer actively maintained. Please follow the link above for more information.
    Downloads: 19 This Week
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  • 8
    Castle aspires to simplify the development of enterprise and web applications. Offering a set of tools (working together or indepedently) and integration with other open source projects, Castle helps you get more done with less code.
    Downloads: 2 This Week
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  • 9
    The AJAX JSP Tag Library is a set of JSP tags that simplify the use of Asynchronous JavaScript and XML (AJAX) technology in JavaServer Pages. Development moved to Mercurial
    Downloads: 6 This Week
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  • 10

    Coherent Logic World Bank Client

    Java client API for accessing economic data from the World Bank

    ***** WARNING ***** The delivery of 1.0.2-RELEASE of this framework will be the final source code commit that will be made on SourceForge; all further updates can be found at the following address: https://bitbucket.org/CoherentLogic/coherent-logic-world-bank-client/ ***** WARNING ***** The World Bank Client is a Java-based internal domain-specific language (DSL) for accessing Economic Data from the World Bank web services complements of the World Bank. The API is designed to work with The Spring Framework and includes several examples to demonstrate how the components fit together.
    Downloads: 9 This Week
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  • 11
    This project has moved! Go to https://github.com/yenrab/qchybrid
    Downloads: 3 This Week
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  • 12

    XML2CSV Spreadsheet Converter

    Converts XML to CSV using a spreadsheet app

    An MS Excel VBA macro converts XML to CSV. It demonstrates this capability by converting an XML-based Continuity of Care Document (CCD) into a slim Comma Separated Value (CSV) file.
    Downloads: 3 This Week
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  • 13
    Sort, filter and aggregate lists of business objects without all the boring code! This library provides a powerful "view" approach to data binding .NET objects to user interface controls.
    Downloads: 2 This Week
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  • 14
    VR Ax Java Sources & Build Projects

    VR Ax Java Sources & Build Projects

    VR Adrix Java Works - Paged Lists - Action-Entity Model ...

    Adrix.NT Java Works :: Sources & Build Projects includes - Paged Lists of Object & Iterators Library for Java - Action / Entity Model for Java - VR Ax AWT Clock Java Component - VR Multi Dimensions Array Library - VR MDArray List Manager Library - VR Adjacency (List | Matrix) Direct Graph Lib - VRJMosaic cells sliding game with automatic resolver - VR RectsWorld Sample Applic - VR Free Chess 2D Applic also contains - Other Utils Libraries - Demo and Test Applications - NetBeans build projects - and more ... (*) note: the libraries folder to build and run applications must be located on the same volume of the java applications its path name must be: \AX.VincentRadio\Java\SharedLib have fun Adrix.NT adrixnt@hotmail.it
    Downloads: 2 This Week
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  • 15
    Ismo is a web application framework that takes care of all the boring stuff and let's you focus on the fun and interesting parts!
    Downloads: 4 This Week
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  • 16
    Grift is a library that provides a framework for developing a UI-independent application.
    Downloads: 2 This Week
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  • 17
    Mutis is a Delphi port of the Lucene Search Engine. Provide a flexible API for index, catalog and search text-based information with great performance. Excelent for implement custom search engines, researching, text retrieval, data mining and more.
    Downloads: 2 This Week
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  • 18
    PowerMops
    Mops is a full-featured, object-oriented stand-alone programming language for Mac OS X. Its interactive development environment provides for fluid and productive programming by allowing quick testing and modification of small code segments.
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    Downloads: 2 This Week
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  • 19
    The 4Ever framework provides a OO access layer to a single or a set of XML files. The framework offers a set of basic management services as loading/saving, change history, and consistency checking. It is realized in a component-oriented way.
    Downloads: 1 This Week
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  • 20
    Yapsy

    Yapsy

    A fat-free DIY Python plugin management toolkit.

    A simple framework for plugin system development with as few dependencies as possible. It is designed to offer a set of very lean classes (plugin managers and plugin interfaces) which can easily be customised by decoration or inheritance. Yapsy v1.x supports Python2 and Python3. Its source package contains versions of the sources for both pythons. Yapsy v2+ supports Python 3 and it's development happens now on https://github.com/tibonihoo/yapsy/ Usage samples, advices and developer's documentations are available on the main website.
    Downloads: 1 This Week
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  • 21
    Component (library, framework) refactoring may affect existing applications, where the client code used previous component versions. Our tool preserves applications binary-compatible by generating an adaptation layer out of change history.
    Downloads: 2 This Week
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  • 22
    EIDNative Library is a freeware SDK for Belgian Electronic ID Card. EIDNative Library includes native API for: * Microsoft .NET * Native Win32 * Visual Basic 6.0 and VBA * Java (only Windows platform)
    Downloads: 2 This Week
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  • 23
    SWinC - Simple Windows Class is a lightweight c++ wrapper around the the window creation aspect of the Windows API. Although other wrappers exist, this is determined to be the simplest to learn and use while yet providing full control over your code.
    Downloads: 2 This Week
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  • 24
    This is a collection of tools and a code library to assist engineers who are developing SystemVerilog based verification environments. Components include utility libraries, scoreboard and shutdown manager implementation, register tool, etc.
    Downloads: 2 This Week
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  • 25
    Pugg is a c++ framework for plugin management. Features o Header only library, no installation o Auto loading of plugins from files o Version control for plugins o Object oriented design o Platform independent
    Downloads: 2 This Week
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