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.

  • MongoDB Atlas runs apps anywhere Icon
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  • 1
    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: 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: 32 This Week
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  • 3
    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 2025R1 build 2025.1.0.436 was released to production on 2025-06-09. https://sourceforge.net/projects/stdfndclass/files/FrameWork/Integrated => The STD "Web Service" framework 2022R2 build 2021.2.0.106 is the last release to production on 2021-05-12. This PB feature is now discontinued as of PB 2021 https://sourceforge.net/projects/stdfndclass/files/FrameWork/WebService => Updated version of the STD "Order Entry" example App 2025R1 build 2025.1.0.626 was released on 2025-05-29. https://sourceforge.net/projects/stdfndclass/files/Applications
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    Downloads: 41 This Week
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  • 4
    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: 10 This Week
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    AI-generated apps that pass security review

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  • 5
    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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  • 6
    Prophecy

    Prophecy

    Highly opinionated mocking framework for PHP 5.3+

    Prophecy is a highly opinionated yet very powerful and flexible PHP object mocking framework. Though initially it was created to fulfil phpspec2 needs, it is flexible enough to be used inside any testing framework out there with minimal effort. First, add Prophecy to the list of dependencies inside your composer.json, then, simply install it with composer. First of all, in Prophecy every word has a logical meaning, even the name of the library itself (Prophecy). When you start feeling that, you'll become very fluid with this tool. For example, Prophecy has been named that way because it concentrates on describing the future behavior of objects with very limited knowledge about them. But as with any other prophecy, those object prophecies can't create themselves, there should be a Prophet. Prophecy enforces same method prophecies and, as a consequence, same promises and predictions for the same method calls with the same arguments.
    Downloads: 2 This Week
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  • 7

    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: 11 This Week
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  • 8
    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: 15 This Week
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  • 9
    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: 15 This Week
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  • 10
    This project has moved! Go to https://github.com/yenrab/qchybrid
    Downloads: 6 This Week
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  • 11

    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: 2 This Week
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  • 12
    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: 4 This Week
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  • 13
    jCompany Full-Stack Framework - Community Version. Hyper-produtive Full Stack Solution for Java EE Open Source Development.
    Downloads: 11 This Week
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  • 14
    The xWire framework is a toolkit used to build Java web applications, but is flexible enough for other uses. It is ideal for building AJAX apps and consists of both client and server components, each of which can be used independently of the other.
    Downloads: 9 This Week
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  • 15
    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: 2 This Week
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  • 16
    Horus Framework

    Horus Framework

    Smart Micro PHP Framework inspired by Sinatra in Ruby but not a clone

    An OOP PHP micro-framework, a lightweight toolkit to help developers lay down the foundation of their PHP-based websites and applications The Horus Framework is a pretty solid attempt at designing a good OOP framework in as a small package as possible. Focused on a light codebase and on a solid, standards-friendly approach, Horus can be used to write advanced applications without having to deal with complex coding toolkits like Zend or CakePHP. Horus is easy to learn and the code is pretty well commented in case developers need help figuring out what's going on.
    Downloads: 6 This Week
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  • 17
    The Harmoni PHP Project consists of three major components: 1) A PHP application framework and architecture, offering, e.g. authentication, DBC, file storage 2) PHP OKI OSID (service definitions) conversion system 3) PHP implementations of those OSIDs
    Downloads: 4 This Week
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  • 18
    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: 1 This Week
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  • 19
    COS is a C89 library lifting C to the level of other OOPLs and beyond. Its syntax and features inspired from Objective-C and CLOS provide: uniform object model, generic functions, fast multimethods & delegation, introspection, exceptions & contracts...
    Downloads: 2 This Week
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  • 20
    CamelBones is a Cocoa/Perl bridge for Mac OS X. It allows easy access to the Cocoa API for Perl developers. It also allows easy, object-oriented access to an embedded Perl interpreter for Objective-C developers.
    Downloads: 3 This Week
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  • 21
    JCommons provides generally re-usable Java tools and components. Some things included are: code generation, data and object conversions such as EDI to XML, visualizing object instances as FreeMind mindmaps and a framework for generating factories.
    Downloads: 3 This Week
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  • 22
    The aim of this project is to develop a straight forward java package for creating, reading and writing INI files (aka configuration files). Furthermore, the package should retain all comments of the INI file when reading and writing the files.
    Downloads: 3 This Week
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  • 23
    mPagesJS JavaScript Library
    mPagesJS is a JavaScript Framework that provides a core interface into all client-side functionality within Cerner Millennium Pages - MPages. mPagesJS makes MPage development quicker and easier.
    Downloads: 3 This Week
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  • 24
    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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  • 25
    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: 1 This Week
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