Object Oriented Software

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

  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • Get Avast Free Antivirus | Your top-rated shield against malware and online scams Icon
    Get Avast Free Antivirus | Your top-rated shield against malware and online scams

    Boost your PC's defense against cyberthreats and web-based scams.

    Our antivirus software scans for security and performance issues and helps you to fix them instantly. It also protects you in real time by analyzing unknown files before they reach your desktop PC or laptop — all for free.
    Free Download
  • 1
    [incr Tcl] is the most widely used O-O system for Tcl. The name is a play on C++, and [incr Tcl] provides a similar object model, including multiple inheritence and public and private classes and variables. Repos now http://core.tcl.tk/itcl and itk
    Leader badge
    Downloads: 116 This Week
    Last Update:
    See Project
  • 2
    SMC - The State Machine Compiler

    SMC - The State Machine Compiler

    Translates state machine into a target programming language.

    SMC takes a state machine stored in a .sm file and generates a State pattern in 14 programming languages. Includes: default transitions, transition args, transition guards, push/pop transitions and Entry/Exit actions. See User Manual for more info.
    Leader badge
    Downloads: 56 This Week
    Last Update:
    See Project
  • 3
    Ada Class Library

    Ada Class Library

    Ada Class Library - an object orientated library for Ada.

    Text search and replace. Scripting (small tool programs). CGI scripts. Execution of external programs (incl. I/O redirection). Garbage Collection. Extendended Booch Components. CD-Recorder
    Downloads: 245 This Week
    Last Update:
    See Project
  • 4
    db4o is the world's leading open source object database for Java and .NET. Leverage fast native object persistence, ACID transactions, query-by-example, S.O.D.A object query API, automatic class schema evolution, small size (http://developer.db4o.com)
    Leader badge
    Downloads: 43 This Week
    Last Update:
    See Project
  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 5
    PLEASE NOTE that we are in the process of moving to GitHub: https://github.com/jasypt/jasypt Jasypt (Java Simplified Encryption) is a java library which allows the developer to add basic encryption capabilities to his/her projects with minimum effort, and without the need of having deep knowledge on how cryptography works. PLEASE NOTE that we are in the process of moving to GitHub: https://github.com/jasypt/jasypt
    Downloads: 37 This Week
    Last Update:
    See Project
  • 6
    ADempiere ERP Business Suite

    ADempiere ERP Business Suite

    A full ERP system - moved to GitHub. See full description for details.

    NOTE: We're moving! See adempiere.net for more info. ADempiere Business Suite is a fully functional ERP/CRM/MFG/SCM/POS system suitable for large enterprise adoption. The software is fully open source and supported by an international community of developers and system experts.
    Downloads: 19 This Week
    Last Update:
    See Project
  • 7
    JDatePicker. JavaBean components(calendar panel, combobox, dialog). Support appearance customization with visual editors, external skins support. Single, period, miltiple or null selection. Also support visual property customization without IDE
    Leader badge
    Downloads: 57 This Week
    Last Update:
    See Project
  • 8

    PythonQt

    Dynamic Python binding for Qt Applications

    NOTE: PythonQt has been moved to https://github.com/MeVisLab/pythonqt PythonQt is a dynamic and lightweight script binding of the Qt framework to the Python language. It can be easily embedded into Qt applications and makes any QObject derived object scriptable via Python without the need of wrapper code generation.
    Downloads: 15 This Week
    Last Update:
    See Project
  • 9

    eBus

    Publish/Subscribe, Request/Reply Messaging API for Java.

    A Java middleware API supporting broker-less, type+topic-based publish/subscribe and request/reply messaging for both intra- and inter-application, object-level communication. Broker-less: messages are transmitted directly between eBus applications. There is no message broker (i.e. server) in between. Type+topic addressing: eBus clients subscribe to a message class (type) and message topic, providing stronger typing than just topic-based subscriptions. Object-level communication: eBus delivers messages directly to client objects, not to a client process.
    Downloads: 27 This Week
    Last Update:
    See Project
  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    Build gen AI apps with an all-in-one modern database: MongoDB Atlas

    MongoDB Atlas provides built-in vector search and a flexible document model so developers can build, scale, and run gen AI apps without stitching together multiple databases. From LLM integration to semantic search, Atlas simplifies your AI architecture—and it’s free to get started.
    Start Free
  • 10
    NArrange is a tool for arranging .NET source code. This code beautifier automatically sorts and organizes class members into groups or regions. C# and VB.NET code files are supported, but one goal will be to add support for additional .NET languages.
    Downloads: 14 This Week
    Last Update:
    See Project
  • 11
    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: 21 This Week
    Last Update:
    See Project
  • 12
    WideImage is an object-oriented PHP image library, written in PHP5. It uses GD2 and promotes ease of use and extensibility. It supports all common image transformations, such as resize, watermark, crop, draw text, ...
    Downloads: 10 This Week
    Last Update:
    See Project
  • 13
    The ftp4j library implements a Java full-featured FTP client. With ftp4j embedded in your application you can: transfer files (upload and download), browse the FTP site (directory listing), create, delete, rename and move directories and files.
    Leader badge
    Downloads: 9 This Week
    Last Update:
    See Project
  • 14
    JoSQL (Java Objects SQL) provides SQL capabilities for querying, ordering and grouping of collections of Java objects (POJOs). It allows a SQL statement to be applied to the collection of objects and the matching set returned, ordered and grouped.
    Downloads: 17 This Week
    Last Update:
    See Project
  • 15

    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: 5 This Week
    Last Update:
    See Project
  • 16
    EiffelStudio
    EiffelStudio is an Integrated Development Environment (IDE) that provides comprehensive facilities to programmers. It offers a comprehensive suite of tools that enable programmers to produce correct, reliable, and maintainable software while keeping control of the development process. If you want to create fast, robust, scalable applications, then EiffelStudio™ will offer you a cost-effective solution. Imagine being able to model your system as you think – capturing your requirements and your thought processes with EiffelStudio. When ready to design, you build upon the model you just created, still with EiffelStudio. Then you implement with EiffelStudio. You never need to throw anything out and start over. You don’t need extra tools to go back and safely make changes in your architecture. Roundtrip engineering? It’s built in by design. Testing, metrics and productivity tools? They’re built in. EiffelStudio accommodates quickly and efficiently new thoughts and changes.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 17
    MetaUML is a GNU/GPL MetaPost library for typesetting exquisite UML diagrams.
    Downloads: 14 This Week
    Last Update:
    See Project
  • 18
    UCDetector

    UCDetector

    Eclipse Plugin to find unused Java code

    UCDetector (Unnecessary Code Detector) is a Open Source Eclipse Plugin Tool. UCDetector finds unnecessary (dead) public Java code. It suggests to make code final, protected or private.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 19
    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: 6 This Week
    Last Update:
    See Project
  • 20
    Simple but powerful tool for finding java class files on the filesystem, recursively looking into directories and archives. Useful for fixing "class not found" errors and setting the CLASSPATH properly.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 21

    PHP AutoLoad

    Extensible PSR-0 compatible class autoloader for PHP 5.3+

    The AutoLoad class allows you to use a PSR-0 compatible approach to autoloading classes using namespaces for PHP 5.3+.
    Downloads: 19 This Week
    Last Update:
    See Project
  • 22
    Sqrat is a C++ library for Squirrel that facilitates exposing classes and other native functionality to Squirrel scripts. It models the underlying Squirrel API closely to give access to a wider range of functionality than other binding libraries. In addition to the binding library, Sqrat features a threading library and a module import library.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 23
    Dependency Finder
    Extracts dependencies and OO metrics from Java class files produced by most Java compilers. Computes API differences between versions. No source needed. Includes both Swing and command-line interfaces, with XSL stylesheets for formatting output.
    Downloads: 17 This Week
    Last Update:
    See Project
  • 24
    Unit testing, mock objects and web testing framework for PHP built around test cases. If you know JUnit/JMock or some of the PHPUnit clones this will need no explanation. Includes a native web browser for testing web sites directly (no JavaScript).
    Downloads: 3 This Week
    Last Update:
    See Project
  • 25
    AMMORIA (ARAB) is an object oriented programming language uses Arabic words instead of English words, to make learning programming for Arab children easy and fast, it's planned to support Urdo and Farsi too, AMMORIA has its won IDE and Visual stuff.
    Downloads: 5 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next
Want the latest updates on software, tech news, and AI?
Get latest updates about software, tech news, and AI from SourceForge directly in your inbox once a month.