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
    XUP (Extensible User Interface Protocol) is a SOAP-based protocol for delivering events and incremental UI updates. This project builds a web application development framework on top of XUP, consisting of a client, a server toolkit, and a template viewer.
    Downloads: 0 This Week
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  • 2
    Orchard Core

    Orchard Core

    Open-source modular and multi-tenant application framework

    Open-source, modular, multi-tenant application framework and CMS for ASP.NET Core. Orchard Core is a redevelopment of Orchard CMS on ASP.NET Core. Orchard Core consists of two different targets, Orchard Core Framework, an application framework for building modular, multi-tenant applications on ASP.NET Core, and Orchard Core CMS, a web content management system (CMS) built on top of the Orchard Core Framework. It’s important to note the differences between the framework and the CMS. Some developers who want to develop SaaS applications will only be interested in the modular framework. Others who want to build administrable websites will focus on the CMS and build modules to enhance their sites or the whole ecosystem. One of our goals is to enable community-based ecosystems of hosted applications that can be extended with modules, like eCommerce systems, blog engines and more.
    Downloads: 0 This Week
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  • 3
    Nex is a web-browser, written on C#. It uses .Net Framework, Microsoft Web Browser (ActiveX Control), stores all configuration in XML format and has MDI interface. Nex is an executable part of Oridea Platform and designed to run Oridea applications.
    Downloads: 0 This Week
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  • 4
    Otter Unit Test Framework is a tool which performs automated Unit Test in .NET 4,0 or above applications. It works similarly to the JUnit and it used as part of the application being tested, in MS Web or C# Developer 2010. Older versions (00.05 and below) were developed for MS Visual Studio 2005 and can still be downloaded. For them, a MS Visual Studio Plugin was developed and in the project´s home page you can find its documentation.
    Downloads: 0 This Week
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  • 5
    Lots of little useful extensions to .NET/mono. Some of the current inclusions include: Event based collections, forms with customisable titlebar buttons, enumerable generator functions with lots of predefined generators including a prime number generator
    Downloads: 0 This Week
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  • 6
    P/Invoke

    P/Invoke

    A library containing all P/Invoke code so you don't have to import it

    A library containing all P/Invoke code so you don't have to import it every time. Maintained and updated to support the latest Windows OS. A collection of libraries intended to contain all P/Invoke method signatures for popular operating systems. Think of it as https://pinvoke.net, but proven to compile and work properly, and often with sample usage in the form of unit tests. A unique C# project wraps each native library. The C# project may multi-target in order to support many versions of .NET Framework, .NET Core and .NET Standard. Win32 APIs for all Windows versions are welcome. Special Windows Store targeted assemblies omit p/invoke signatures to banned APIs so your Store apps can depend on these libraries without getting rejected by the Store certification process. Provide a slightly higher than lowest level API for P/Invoke signatures.
    Downloads: 0 This Week
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  • 7
    PHPRPC is a Remote Procedure Calling (RPC) protocol that works over the Internet. It is secure and fast. It has a smaller overhead. It is powerful and easy to use. This project is the client and server implementations of the PHPRPC.
    Downloads: 0 This Week
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  • 8
    This project has been shifted to Google Code and code commit is stopped here in sourceforge. Visit google code instead for the latest release.
    Downloads: 0 This Week
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  • 9
    The Pacific Northwest (PNW) SOA Commons (pnwsoacommons) is an Open Source project to collect, organize, build, and share reusable artifacts and best practices to help facilitate the faster adoption and implementation of SOA best practices.
    Downloads: 0 This Week
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  • 10
    POLS is a location framework intended for mobile devices designed with privacy in mind.
    Downloads: 0 This Week
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  • 11
    Palma is a lightweight content delivery framework for interactive, multi-language, multi-site, multi-channel and multi-device enabled web sites. It is written in C#, comes with MS Access databases by default and is open for Visual Studio Express Edition.
    Downloads: 0 This Week
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  • 12
    Passage .NET Enterprise Portal provides content management and interactive web applications for Customer, Partner, and Employee portal applications.
    Downloads: 0 This Week
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  • 13
    Every good developer keeps a repository of code and useful tools that they have built up to use at a later stage. This is the code repository of Paul Stovell. Included are CodeSmith Templates, libraries and custom controls. Developed in .NET and C#.
    Downloads: 0 This Week
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  • 14
    PeachPie

    PeachPie

    PeachPie, the PHP compiler and runtime for .NET and .NET Core

    PeachPie is a modern PHP compiler based on the Microsoft Roslyn compiler platform and drawing from our popular Phalanger project. It allows PHP to be executed within the .NET framework, thereby opening the door for PHP developers into the world of .NET – and vice versa. Build, debug, profile, and diagnose your code in the family of .NET tools, including Visual Studio and VS Code. Seamlessly port your legacy PHP code to the modern, cross-platform, lightning-fast .NET Core. Leverage the best of both worlds and build .NET apps in C# and PHP. You can find an up-to-date status of the project in our Roadmap section. Please note that the status is dynamic; PeachPie is a work in progress, which means that the list of finished and planned features frequently changes and will be updated on a regular basis.
    Downloads: 0 This Week
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  • 15
    Pelagia is a framework for multimedia applications that allows to connect seperate steps of processing localy or over a network transparent for the application. No assumption is made on the used media types so all formats can be used.
    Downloads: 0 This Week
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  • 16
    Pensieve.NET is an extension to ASP.NET framework. It facilitate storing variables into ASP.NET sessions, Applications, Caches etc. using Declarative Programming.
    Downloads: 0 This Week
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  • 17
    Persist.NET is a persistence framework written in C#.
    Downloads: 0 This Week
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  • 18
    PhenomShare is a windowed AJAX rendering framework for MS SQL databases built to easily and graphically pleasingly display, interact with, and modify data nearly automatically (with only display windows and database schema requiring construction). This i
    Downloads: 0 This Week
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  • 19
    Phorm is an ORM (Object Relational Mapping) tool for php and .net. It works as a plugin of DBDesigner, a freely available tool which allows to graphically design a database schema.
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  • 20
    Photon provides very fast access to data containers (queues, maps, etc.) in shared memory - it can retrieve millions of data records per second. It also uses some RDB concepts like transactions and crash recovery. See web site for details.
    Downloads: 0 This Week
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  • 21
    Plumbwork Indigo is a project to augment "Indigo" by implementing various WS-* specifications and support libraries.
    Downloads: 0 This Week
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  • 22
    PocketGraphics is a 100% managed assembly graphics library for the Pocket PC environment. It uses either GAPI or the raw framebuffer for increased speed.
    Downloads: 0 This Week
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  • 23
    Pomelo.EntityFrameworkCore.MySql

    Pomelo.EntityFrameworkCore.MySql

    Entity Framework Core provider for MySQL and MariaDB

    Entity Framework Core provider for MySQL and MariaDB built on top of MySqlConnector. Pomelo.EntityFrameworkCore.MySql is the most popular Entity Framework Core provider for MySQL-compatible databases. It supports EF Core up to its latest version and uses MySqlConnector for high-performance database server communication. Pomelo.EntityFrameworkCore.MySql is tested against all actively maintained versions of MySQL and MariaDB. Older versions (e.g. MySQL 5.6) and other server implementations (e.g. Amazon Aurora) are usually compatible to a high degree as well, but are not tested as part of our CI. Check out our Integration Tests for an example repository that includes an ASP.NET Core MVC Application.
    Downloads: 0 This Week
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  • 24
    Poplar is a .NET framework for binding UI controls to data.
    Downloads: 0 This Week
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  • 25
    Pose

    Pose

    Replace any .NET method (including static) with a delegate

    Pose allows you to replace any .NET method (including static and non-virtual) with a delegate. It is similar to Microsoft Fakes but unlike it Pose is implemented entirely in managed code (Reflection Emit API). Everything occurs at runtime and in memory, no unmanaged Profiling APIs and no file system pollution with re-written assemblies. Pose is cross-platform and runs anywhere .NET is supported. It targets .NET Standard 2.0 so it can be used across .NET platforms including .NET Framework, .NET Core, Mono, and Xamarin. Pose gives you the ability to create shims by way of the Shim class. Shims are basically objects that let you specify the method you want to replace as well as the replacement delegate. Delegate signatures (arguments and return type) must match that of the methods they replace. The Is class is used to create instances of a type and all code you want to apply your shims to is isolated using the PoseContext class.
    Downloads: 0 This Week
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