C# Object Oriented Software

View 6185 business solutions

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

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • Host LLMs in Production With On-Demand GPUs Icon
    Host LLMs in Production With On-Demand GPUs

    NVIDIA L4 GPUs. 5-second cold starts. Scale to zero when idle.

    Deploy your model, get an endpoint, pay only for compute time. No GPU provisioning or infrastructure management required.
    Try Free
  • 1
    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: 57 This Week
    Last Update:
    See Project
  • 2
    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: 43 This Week
    Last Update:
    See Project
  • 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 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
    Leader badge
    Downloads: 46 This Week
    Last Update:
    See Project
  • 4
    Outdated: New version can be found here...https://github.com/bernharde/hexbox Be.HexEditor is a small, fast and simple hex editor. It contains a reusable hex edit control called HexBox. This C# control is reusable for every .NET Framework application.
    Downloads: 15 This Week
    Last Update:
    See Project
  • Train ML Models With SQL You Already Know Icon
    Train ML Models With SQL You Already Know

    BigQuery automates data prep, analysis, and predictions with built-in AI assistance.

    Build and deploy ML models using familiar SQL. Automate data prep with built-in Gemini. Query 1 TB and store 10 GB free monthly.
    Try Free
  • 5
    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: 9 This Week
    Last Update:
    See Project
  • 6
    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: 5 This Week
    Last Update:
    See Project
  • 7
    FileHelpers Library
    http://www.filehelpers.net The FileHelpers are an easy to use .NET library written in C#. Is designed to read/write data from flat files with fixed length or delimited records (CSV). Also has support to import/export data from different data storages (Excel, Access, SqlServer) Code on GitHub: https://github.com/MarcosMeli/FileHelpers
    Downloads: 2 This Week
    Last Update:
    See Project
  • 8
    .NET library (written in C#) for developers writing data access code that is less cumbersome than straight ADO.NET and is almost entirely database platform independent for most database platforms.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 9
    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: 4 This Week
    Last Update:
    See Project
  • Save Up to 91% on Cloud Compute With Spot VMs Icon
    Save Up to 91% on Cloud Compute With Spot VMs

    Automatic sustained-use discounts. One free VM per month. No negotiation needed.

    Run batch jobs at 60-91% off with Spot VMs. Long-running workloads get automatic discounts with sustained use.
    Try Free
  • 10
    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
    Last Update:
    See Project
  • 11
    AODL,a C# .net library for creating / editing documents in the OpenDocument Format ( ODF ). Requires no knowledge about the ODF XML schema itself. AODC, an OpenDocument Converter & Embed OpenOffice as .net Control
    Downloads: 2 This Week
    Last Update:
    See Project
  • 12
    Space3d

    Space3d

    C# graphics library used for 3D modeling, built with OpenGL/OpenTK

    The Graphics Library is built on top of OpenTK, the C# library that wraps OpenGL. The intended clients are technical and engineering graphics applications that require three-dimensional visualization tool. The implementation draws a scene on separate working thread, optionally, the thread-updater may be invoked. The Space3d Library uses Recursive Composition design pattern. The hierarchy by reference, built into the component, plays a dual role in modeling three-dimensional space: first, it provides a control over a lifetime of the object cluster; second, it mirrors a subordination of the object coordinate systems. The project libraries are built with Visual Studio, using .NET Framework 4.7.1. To test the graphics capabilities, compile and run the GraphicsTest solution. To test the Space3d Library, compile and run the Space3dTest solution.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 13
    C# Framework that implements the iRobot Roomba SCI spec. Also included is a diagnostic application named Roomba-Term that uses the framework. I invite you to use the Roomba-Term software as a tool & an example on how to program with the C# SCI
    Downloads: 3 This Week
    Last Update:
    See Project
  • 14
    A logging framework that exposes a single log api to clients. Applications can configure the implementation, including filtering options using the provider pattern support in the xqs-provider project.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 15
    Evil Dicom (classic)
    The original C# .NET 4.0 DICOM library designed for rapid development of DICOM applications. the new library can be found at evildicom.rexcardan.com. The website has maintenance planned for 08.21.12 and will be down.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    Epic.NET
    Epic stands for "Entity Proxies with Injectable Components". It helps to keep your domain model implementation fully focused on the enterprise business, with an infrastructure ignorant fashion.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 17
    Folio Plus | Hotel Management System |

    Folio Plus | Hotel Management System |

    A new generation of hotel management system in Philippines and Asia

    Philippines and Asia. Folio Plus is created to introduce convenience and accuracy towards the modern way of managing hotel operations from various departments. Hotel operations are divided by different departments that has different functions and is coordinated by one goal. That includes accounting, sales, FO and more. They have roles and titles, which has different access permission to the Folio System. Jinisys Software Inc. We believe that developing a long-term business relationship with our Customers is essential to our mutual success. We provide support to our customers, and offers network solutions, and certified partners with Avaya, Cisco and more. REASONS for choosing us: 1.) After Sales Support 2.) Affordability 3.) Tailored-Fit Software 4.) Lower Maintenance Cost 5.) Local Support 6.) Non-Stop Research and Development 7.) High Standard of Ethics 8.) Security 9.) Following World Standard in our Business Alignment
    Downloads: 2 This Week
    Last Update:
    See Project
  • 18
    CUAHSI WaterObjectFlow provide JSON web service for hydrology observation data,sponsored by National Science Foundation of United States,developed by Joe hu, MapWindow software lab,Idaho State University
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19
    A toolkit to design applications using design patterns, with facility to generate code, and reverse engineering. Drag and Drop facility to create UML Class diagrams Support to write custom plug-ins for code generators and reverse engineering.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    A C# .NET implementation of the window docking functionality found in many popular applications. This is my attempt at creating that functionality using many of the pieces I have found on the net.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    This application is a .NET based framework, designed for helping in development of different volume reconstruction, 3D voxel visualization and color consistency algorithms in multi view dynamic scenes.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    Weka.Net is a port to .Net of the Weka library. It use all the power of .net including some redisene of the library to make more Object-Oriented.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    This is a calendar control with multi-select. It provides a point and click interface for selecting holidays or special days. It previously extended on MonthCalendar, now it has a fixed size in all regions and all drawing is handled internally.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    NDO® (.NET Data Objects®) is a powerful tool for object relational mapping (O/R-Mapping) on the Microsoft® .NET Platform. It integrates smoothly in Visual Studio, using an Add-in. The latest version 3.0 works with .NET 4.0/4.5/4.5.1 and Visual Studio 2010/2012/2013/2015. Download and issue tracking has been moved to the NDO Website.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    A time schedule graphical component with a point and click interface. This is a custom drawn control written in C#. It provides an easy interface for laying out periods of time associated with a predefined color/state. The control respects local timeform
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next