Open Source C# Software Development Software

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

  • Ship Agents Faster Icon
    Ship Agents Faster

    Transform your applications and workflows into powerful agentic systems at global scale.

    Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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    MongoDB Atlas runs apps anywhere

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

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  • 1

    Irrlicht Engine

    3D Engine c++

    The Irrlicht Engine is an open source high performance realtime 3D engine written and usable in C++. It is completely cross-platform, using D3D, OpenGL and its own software renderers.
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    Downloads: 345 This Week
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  • 2

    Emgu CV

    Emgu CV is a cross platform .Net wrapper for OpenCV

    Emgu CV is a cross platform .Net wrapper to the OpenCV image processing library. Allowing OpenCV functions to be called from .NET compatible languages such as C#, VB, VC++, IronPython etc. The wrapper can be compiled in Mono and run on Windows, Linux, Mac OS X, iPhone, iPad and Android devices.
    Downloads: 97 This Week
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  • 3
    Pixeval

    Pixeval

    Wow. Yet another Pixiv client!

    Pixeval is a third-party proxy-free P station client developed by me as an amateur. The UI is implemented using Windows Presentation Foundation , based on .NET Core 3.0 , and supports Windows 7-10 (planning to cancel support other than Win10), and implements most of the The browsing function and many enhancements have been made. It has been open sourced on Github based on the AGPL protocol . The project was conceived in 2018. At that time, the api of the P station was written in Java. At that time, it could also be accessed by modifying the hosts method. After that, GFW The blocking strategy was upgraded, and DNS pollution was upgraded to SNI blocking, so I went to find information to understand the different blocking levels and blocking mechanisms of GFW. I started writing this project in the second half of 2019, which took about 3 months. (Actually, the realization of this project is partly inspired by Notsfsssf.
    Downloads: 12 This Week
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  • 4
    ServiceStack

    ServiceStack

    Simple, fast, versatile and full-featured services framework

    One framework to power them all. Write your HTTP APIs once and take advantage of end-to-end typed integrations for all popular web, mobile and desktop platforms. ServiceStack's primary goal is to enhance the value of System APIs which serve as the blueprint that most features centered around. By using simple & pure dependency-free DTO models decoupled from any implementation we're free to continue layering on features which now sees ServiceStack APIs as the most versatile in the world where the same high-performance APIs can be consumed from HTTP in any combination of Route, QueryString, FormData or a myriad of data formats, via popular resilient MQ Servers whilst simultaneously supporting legacy integrations like SOAP or adopting new technologies like gRPC without sacrificing any native HTTP integrations. To maximize the value of APIs we're focused beyond the API boundary by making it as simple as possible for API Consumers to call your APIs.
    Downloads: 7 This Week
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  • 99.99% Uptime for MySQL and PostgreSQL Databases Icon
    99.99% Uptime for MySQL and PostgreSQL Databases

    Sub-second maintenance. 2x read/write performance. Built-in vector search for AI apps.

    Cloud SQL Enterprise Plus delivers near-zero downtime with 35 days of point-in-time recovery. Supports MySQL, PostgreSQL, and SQL Server.
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  • 5
    NLua

    NLua

    Bridge between Lua and the .NET

    Bridge between Lua world and the .NET (compatible with .NET/UWP/Mac/Linux/Android/iOS/tvOS). NLua is a fork project of LuaInterface (from Fábio Mascarenhas/Craig Presti). You can use/instantiate any .NET class without any previous registration or annotation. NLua runs on top of KeraLua binding, it encodes the string using the ASCII encoding by default. If you want to use UTF-8 encoding, just set the Lua.State.Encoding property to Encoding.UTF8. Calling instance methods: To call instance methods you need to use the : notation, you can call methods from objects passed to Lua or to objects created inside the Lua context. Calling static methods: You can call static methods using only the class name and the . notation from Lua. If you are using Xamarin.iOS you need to Preserve the class you want to use inside NLua, otherwise the Linker will remove the class from final binary if the class is not in use.
    Downloads: 6 This Week
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  • 6
    Impostor

    Impostor

    An open source reimplementation of the Among Us Server

    Impostor is an open source reimplementation of the Among Us Server, written in C#. It is among the first Among Us private servers with support for Steam, Itch, Android and iOS. It is a full replacement of the game's official server, so you can expect all of the game's features to be included, and the same fun playing experience. The difference of course is that you get to play on a private and secure server. Impostor has plugin support as well as a server-sided anticheat feature. You also have the option of playing on a server hosted by someone else.
    Downloads: 4 This Week
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  • 7
    Uno Platform

    Uno Platform

    Build Mobile, Desktop and WebAssembly apps

    The first and only UI Platform for single-codebase applications for Windows, WebAssembly, iOS, macOS, Android and Linux. The only open source-platform for creating true single-source, multi-platform applications. Reuse 99% of the business logic and UI layer across native mobile, web and desktop. Maintain pixel-perfect control over where pixels go while having a choice of developing a platform-specific or custom look and feel of your application. Familiarity and richness of C# and XAML combined with productivity boosts of hot reload, hot restart, edit and continue and more. Use familiar editors like Visual Studio, Visual Studio Code or Rider. Free and paid support is available by both community and our team. Chats, tickets or even screen sharing! Seeing is believing. Learn by doing. See code samples our engineers put out for fun, learning and reuse. Explore the possibilities Uno Platform opens.
    Downloads: 4 This Week
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  • 8
    MvvmCross

    MvvmCross

    The .NET MVVM framework for cross-platform solutions

    Build clean, pixel perfect, native UIs. Share behavior and business logic in a single codebase across supported platforms, using the Model-View-ViewModel (MVVM) design pattern. MvvmCross is a framework specifically developed for Xamarin and the mobile ecosystem. It supports Xamarin.iOS, Xamarin.Android, Xamarin.Mac, Xamarin.Forms, Universal Windows Platform (UWP) and Windows Presentation Framework (WPF). MvvmCross is a cross-platform MVVM framework. It enables developers to create apps using the MVVM pattern on Xamarin.iOS, Xamarin.Android, Xamarin.Mac, Xamarin.Forms, Universal Windows Platform (UWP) and Windows Presentation Framework (WPF). This allows for better code sharing by allowing you to share behavior and business logic between platforms. Inversion of Control through Dependency Injection and Property Injection.
    Downloads: 2 This Week
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  • 9
    SkiaSharp

    SkiaSharp

    SkiaSharp is a cross-platform 2D graphics API for .NET platforms

    SkiaSharp is a cross-platform 2D graphics API for .NET platforms based on Google's Skia Graphics Library. It provides a comprehensive 2D API that can be used across mobile, server and desktop models to render images. Building SkiaSharp is mostly straight forward. The main issue is the multiple dependencies for each platform. However, these are easy to install as they are found on the various websites. If you are just working on managed code, it is even easier as there mays to skip all the native builds. Because there are multiple distros of Linux, and we cannot possibly support them all, we have a separate NuGet package that will contain the supported binaries for a few distros.
    Downloads: 2 This Week
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  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

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  • 10
    Coronis SDK

    Coronis SDK

    Set of module for data processing of wireless device

    The goal is to create a leading “Set of software libraries for data processing of wireless device based on Coronis platform“. These libraries will run on all major platforms (embedded and desktop) and provide services for data processing through generic APIs. Keywords: Coronis, Wavenis, API, Plugin, Wireless, Waveport, Wavecard, Profile, Java, C, C++, C#
    Downloads: 15 This Week
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  • 11
    Avalonia

    Avalonia

    A cross-platform UI framework for .NET

    Avalonia is a cross-platform UI framework for dotnet, providing a flexible styling system and supporting a wide range of Operating Systems such as Windows, Linux, macOS. Avalonia is mature and production-ready. We also have in beta release support for iOS, Android and in early stages support for browsers via WASM. Avalonia is open source, free to use, and always will be. Clone the source today to dig deeper. The free VS extension provides everything needed to start, including a XAML previewer. JetBrains deep understanding of Avalonia shines through with rich Rider and R# support. Deploy to the platforms you care about with ease. Leverage existing knowledge, code and packages to kickstart your project. Get the support your project needs with one of our commercial support agreements. Help you can count on. JetBrains delivers huge productivity gains for Avalonia developers.
    Downloads: 1 This Week
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  • 12
    iBoxDB Resources

    iBoxDB Resources

    Relative Examples and Resources of iBoxDB.

    IOs, Graph Database Wrapper and more examples for iBoxDB. includes java .net python ... Download https://sourceforge.net/settings/mirror_choices?projectname=application-database&filename=iboxdb4120.zip
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    Downloads: 14 This Week
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  • 13
    Icarus Scene Engine

    Icarus Scene Engine

    3D .NET engine for Windows, Linux, Mac

    Icarus Scene Engine is a cross-platform, CLS-compliant 3D framework, integrating open source APIs into a cohesive all-open-source, all .NET solution. For Windows, MacOSX & Linux. Uses OpenTK, OpenGL, OpenAL APIs for graphics and audio. Runs on Mono/.NET. Links to FFMpeg for streaming video, and FreeType as a temporary conversion mod to bring fonts into a native XML format. Binary builds of Icarus will be infrequent, roughly every 18 months or so, the GIT code updates regularly on a weekly or twice-weekly basis (or faster if there are urgent issues).
    Downloads: 10 This Week
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  • 14

    Distro_Boot

    download iso's from distrowatch and boot them with qemu

    Dow load and boot ISO or IMG images from distrowatch and boot them in a virtual PC environment. Currently the app supports about 90 different linux iso's out of the box but feel free to use this tool to test your own iso's (windows 10, 11, PE, etc). This is my way of attempting to inplement what 've learned in the past 10 months with stuff that I already know well. I hope you find this interesting. feel free to leave me a comment /thumbs up even hatemail is acceptable at this point. if you hate it please tell me too :)
    Downloads: 4 This Week
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  • 15
    DotNetOpenServer SDK

    DotNetOpenServer SDK

    Lightweight fully extendable client/server application framework

    DotNetOpenServer SDK is an open source lightweight fully extendable TCP socket client/server application framework enabling developers to create highly efficient, fast, secure and robust cloud based smart mobile device and desktop applications. Why? Unlike most application server frameworks, which are implemented over slow inefficient stateless protocols such as HTTP, REST and SOAP that use bulky ASCII data formats such as JSON and XML, DotNetOpenServer has been built from the ground up with highly efficient stateful binary protocols.
    Downloads: 1 This Week
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  • 16
    .NET Docs

    .NET Docs

    This repository contains .NET Documentation

    This repository contains the conceptual documentation for .NET. The .NET documentation site is built from multiple repositories. Issues and tasks for all but the API reference repository are tracked here. We have a large community using these resources. We make our best effort to respond to issues in a timely fashion. .NET is a free, open-source development platform for building many types of applications. Share functionality between different applications and application types using class libraries. With .NET, your project code and files look the same, regardless of the type of application you build. With each application you have access to the same language, API, and runtime capabilities. .NET allows you to use platform-specific functionality, such as operating system APIs. Some examples are Windows Forms and WPF on Windows and the native bindings to each mobile platform from Xamarin.
    Downloads: 0 This Week
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  • 17
    AL-IV

    AL-IV

    ALFOUR Programming language. Simple, safe, power, multi-platform.

    A programming language AL-IV (ALFOUR) is a high-level imperative object oriented programming language with minimal introduction level, easy porting to any platform claiming a very high level of safety and stability, with a controllable level of code protection, high efficiency of an executable code, full independence from a target platform, minimal enter level.
    Downloads: 0 This Week
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  • 18
    Bit Platform

    Bit Platform

    Build all of your apps using what you already know and love

    Bit Platform is a comprehensive .NET development ecosystem designed to simplify the creation of cross-platform applications using Blazor and modern web technologies. It provides a full-stack toolkit that includes UI components, project templates, and supporting libraries that enable developers to build web, mobile, and desktop applications from a single codebase. At its core is the Bit.BlazorUI library, which offers a large collection of lightweight, production-ready components with support for themes and responsive design. The platform also includes tools like Bswup for Progressive Web App capabilities, Butil for accessing browser APIs in C#, and Besql for offline data storage using SQLite in the browser. Its architecture supports modern development practices such as pre-rendering, service workers, and CI/CD pipelines, enabling scalable and performant applications.
    Downloads: 0 This Week
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  • 19

    CCM (C# Collections Mapper)

    The CCM is a mini ORM, working with the database and C# collections

    CCM is a solution for the data management layer in the combination of Sql Server with a C # application. In whole this is a strongly typed entity mapper projecting the application's business logics onto database tables using T-SQL stored procedures. CCM allows you to implement fairly complex data structures in your application, without bothering about difficult and tedious questions of data acquisition and conversion issue, allowing you to pay more attention to the develop of business logic and UI. There no need to worry about migrations, context, etc. At the same time, ORM completely relieves the developer from direct communicating with ADO - datasets, tables, rows, and other data aceess component, to track connections, commands or operate with adapters because ORM works at a higher level of data abstraction. At the same time you will be completely protected from memory leaks and free to create complexity application logic at the primary data level.
    Downloads: 0 This Week
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  • 20
    Gestionnaire de Mots de Passe

    Gestionnaire de Mots de Passe

    Un gestionnaire de mots de passe en C#

    Le Gestionnaire de Mots de Passe est un petit utilitaire codé en C#, il permet de stocker tout les mots de passe que l'on utilise de façon simple et sécurisé, les mots de passe sont stockés dans un fichier chiffré protégé par le mot de passe principal du logiciel.
    Downloads: 0 This Week
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  • 21

    GxApp

    Open Utilities and/or Examples for GeneXus

    Open utilities and/or examples for GeneXus, this includes: Example procedures Usercontrols Utilities Others...
    Downloads: 0 This Week
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  • 22
    Platform Independent DotNet Helpers Library based on DotNet Standard v1.4 contains some of the useful methods and codes to make C#, VB.Net languages and other DotNet languages easier in control and development.
    Downloads: 0 This Week
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  • 23
    KitX

    KitX

    An all-purpose toolbox app that connect everything

    KitX is an open and extensible tools platform that enables users to create, share, and connect modular functionality through a plugin-based architecture. The system is designed around the concept of atomized functions, where each plugin provides small, independent capabilities that can be dynamically combined to form more complex workflows. Developers can build plugins using their preferred programming languages and frameworks, then distribute them through a shared marketplace where users can discover and install them. One of the key ideas behind KitX is cross-device connectivity, allowing functions to be executed across multiple user devices seamlessly through coordinated actions. The platform acts as an orchestration layer, managing communication between plugins and handling user input, device selection, and execution flow. This enables scenarios where a single user action can trigger a chain of operations across different devices and tools.
    Downloads: 0 This Week
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  • 24
    Loxodon Framework

    Loxodon Framework

    An MVVM & Databinding framework that can use C# and Lua

    LoxodonFramework is a lightweight MVVM(Model-View-ViewModel) framework built specifically to target Unity3D. Databinding and localization are supported. It has a very flexible extensibility. It makes your game development faster and easier. For tutorials, examples, and support, please see the project. You can also discuss the project in the Unity Forums. The plugin is compatible with MacOSX, Windows, Linux, UWP, WebGL, IOS, and Android, and provides all the source code of the project. If you like this framework or think it is useful, please write a review on AssetStore or give me a STAR or FORK it on Github, thank you! Loxodon Framework Bundle is an AssetBundle manager.It provides a functionality that can automatically manage/load an AssetBundle and its dependencies from local or remote location.Asset Dependency Management including BundleManifest that keep track of every AssetBundle and all of their dependencies.
    Downloads: 0 This Week
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  • 25
    Nemesis | Developers™
    Android Developers Team around the world. #BuildTheFuture
    Downloads: 0 This Week
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