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

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  • 1
    A port of Microsoft Enterprise Library (Application Blocks) to Mono framework.
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  • 2
    MindLib is a set of tools to facilitate projects developed based on NHibernate and NHibernate.Burrow
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  • 3
    This is the home of the old MindTouch Platform and Core. This project was turned over to the community in 2010. Please visit www.MindTouch.com for the most up to date version of MindTouch--software that accelerates customer success. More info on the old Core and Platform: http://mndt.ch/oss-dep Thanks for your interest and for making the old MindTouch open source one of the most popular (top 5) open source projects in the world from 2007-2010. Some key terms commonly associated with this project are: customer support, self service support, customer success center, help center, enterprise wiki, etc
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  • 4
    Windows Presentation Foundation based framework for definition and construction of electronic gauges. Developed with Megasquirt ECM in mind as a primary data provider.
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  • 5
    A C# engine for the popular MineSweeper style puzzle game. Easy to extend and integrate into new projects.. See the engine in action: http://www.kongregate.com/games/pintsized/electronminefield
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  • 6
    Low-overhead solutions to common application problems. Similar to Microsoft Enterprise Application Blocks, but working on a smaller scale.
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  • 7
    A portable and flexible HTTP web server library written in C#. A article about it can be found here: http://www.codeproject.com/cs/internet/minihttpd.asp
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  • 8
    Mobile.Windows.Forms offers functionality for developing mobile applications using .NET Compact Framework 1.0, including multiple screen configurations, keyboard navigation and XML based user interface definitions.
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  • 9
    MockHttp for HttpClient

    MockHttp for HttpClient

    Testing layer for Microsoft's HttpClient library

    MockHttp is a testing layer for Microsoft's HttpClient library. It allows stubbed responses to be configured for matched HTTP requests and can be used to test your application's service layer. MockHttp defines a replacement HttpMessageHandler, the engine that drives HttpClient, that provides a fluent configuration API and provides a canned response. The caller (eg. your application's service layer) remains unaware of its presence. MockHttpMessageHandler defines both When and Expect, which can be used to define responses. They both expose the same fluent API, but each works in a slightly different way. Using When specifies a "Backend Definition". Backend Definitions can be matched against multiple times and in any order, but they won't match if there are any outstanding Request Expectations present (unless BackendDefinitionBehavior.Always is specified).
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  • 10
    Monet Objects is an easy-to-use .NET object-relational mapping library. It allows .NET developers to create applications dealing with persistent objects (relying on a relational database as MySql) without writing a single SQL query.
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  • 11
    This project is a C# port of the Java Management Extensions (JMX) API
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  • 12
    MonoTorrent

    MonoTorrent

    The repository for MonoTorrent, a bittorrent library for .NET

    This is a list of all the BEPs which have been implemented in MonoTorrent. A full list of all available BEPs can be seen. Prioritise specific files. Selective file downloading (including the ability to not download specific files). Rarest first piece picking (takes priorisation into account). End-game mode to boost the last 1-2% of the download. Sequential downloading (for media files). Per-torrent download/upload rate limiting. Overall download/upload rate limiting. In memory cache to reduce disk reads. Auto-throttling if the download rate exceeds the piece verification/disk write rate. IPV4 connections. IPV6 connections. IP address ban lists. Creating torrents from a single file, a folder, or arbitrary files in arbitrary folders. Fast resume data can be saved/restored to avoid hashing the data every time a torrent is started. Incremental piece hashing (reduces disk reads by incrementally hashing each block in a piece as it is received).
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  • 13
    MoreLINQ

    MoreLINQ

    Extensions to LINQ to Objects

    MoreLINQ can be used in one of two ways. The simplest is to just import the MoreLinq namespace and all extension methods become instantly available for you to use on the types they extend (typically some instantiation of IEnumerable<T>). In some very rare instances, however, doing so can cause conflicts with other libraries you may be using that incidentally also extend the same type with an identically named method and signature. This happened with MoreLINQ, for example, when Microsoft .NET Framework 4.0 introduced Zip and MoreLINQ already had one. Starting with version 3.0 of MoreLINQ, you can reduce the potential for present (or even future) conflicts by individually importing just the extension methods you need using the static imports feature introduced in C# 6. Building the documentation is supported on Windows only and requires Sandcastle Help File Builder (SHFB). Executing builddocs.cmd generates the documentation in the docs/api directory.
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  • 14
    The Mud Designer gives developers a quick and simple approach to generating text based game content and an easier way to manage their MUD games. It is being developed from the ground up in C# 2008 using .NET 3.5
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  • 15
    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.
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  • 16
    .NET Object Relational Mapping tool that uses XML as input to generate your Data Access Layer.
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  • 17
    N-Tier Windows Forms Framework

    N-Tier Windows Forms Framework

    N-Tier Windows Forms entity productivity framework

    Updated to work with Visual Studio 2012. The N-Tier Framework for Windows Forms is designed to put the developer in control with tools & APIs for the rapid development of database applications in c#. NTier is designed to leverage developers' skills and familiarity with Visual Studio and Windows Forms to quickly build large business applications. NTier provides tools, frameworks, designers, extender providers and helpers to make database application development easy without replacing familiar tools completely or simply providing an inflexible code generator. A key design principal is that each feature of NTier is decoupled from other NTier features and works with and not against the Visual Studio tools, APIs or form designers. The developer is free to use as few or as many features that are found to be useful. A complete database application generation wizard is provided to help get started quickly. Supports Microsoft .NET Framework 2.0 and above.
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  • 18
    NBearLite : NBearLite is a .NET 2.0 data access component which supports MsAccess, SqlServer, Oracle, Sqlite, MySql, PostgreSql databases. NBearLite is the new Core of the next generation of NBear V4 Framework, but can also be used seperately.
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  • 19
    NCindy
    A .NET port of the Cindy(http://cindy.sourceforge.net/) framework.
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  • 20
    A C# .NET Enterprise level web application development platform and common components. Targeting more complex and high scale environments, it provides library as well as common applications such as CMS, Configuration, Security, Web Templating and Menu.
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  • 21
    Task scheduling service written completely in managed C#. The service can be linked into other projects (DLL) or installed as a stand-alone Windows service (EXE), and is able of executing tasks written in any .NET language.
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  • 22
    Simple data framework meant for smaller projects that don't have the need for Object Relational Mapping.
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  • 23
    NDemo is a .NET framework for creating automated demos in a TDD-style approach. These demos can then be used to create interactive or automated user acceptance tests and generate various forms of documentation with screenshots.
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  • 24
    NFusebox is a ASP.Net equivalent framework of the popular Fusebox framework.
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  • 25
    NHibernate

    NHibernate

    NHibernate Object Relational Mapper

    NHibernate is a mature, open-source object-relational mapper for the .NET framework. It's actively developed, fully featured, and used in thousands of successful projects. Easily map regular C# or VB.NET object models designed in Visual Studio. No special base classes or attributes are needed. Fully supports inheritance, components, and enums. Generates database tables from your domain models. Supports all popular relational databases. Supports the most complex legacy scenarios. Full-Text Search. Cluster-scoped caching with Microsoft Velocity & Memcached. Business validation rules. ReSharper plugin. Castle Active Record. S#arp Architecture. NHibernate is a popular, fast-growing ORM with a helpful community of seasoned developers. Used in thousands of commercial and open source projects.
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