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.

  • Collect! is a highly configurable debt collection software Icon
    Collect! is a highly configurable debt collection software

    Everything that matters to debt collection, all in one solution.

    The flexible & scalable debt collection software built to automate your workflow. From startup to enterprise, we have the solution for you.
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  • MicroStation by Bentley Systems is the trusted computer-aided design (CAD) software built specifically for infrastructure design. Icon
    MicroStation by Bentley Systems is the trusted computer-aided design (CAD) software built specifically for infrastructure design.

    Microstation enables architects, engineers, and designers to create precise 2D and 3D drawings that bring complex projects to life.

    MicroStation is the only computer-aided design software for infrastructure design, helping architects and engineers like you bring their vision to life, present their designs to their clients, and deliver their projects to the community.
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  • 1
    ClientServerProject

    ClientServerProject

    A CS development framework based on small-to-medium sized refining

    A CS development framework based on small-to-medium-sized refining, covering computer-side, web-side, and mobile-side full-platform system templates, will include some commonly used repetitive function codes, such as network communication mechanisms, in most one-to-many system designs. Client version control, account control management, password modification, announcement management, server configuration, various common windows, etc., and most small and medium-sized systems just need simple rights management. This framework contains four client-side modes, the first commonly used winform client, the second is the wpf client, the third is the asp.net mvc mode, and the fourth is the client of the Android platform. You can choose a mode on winform and wpf clients, then your system provides some functions (such as report viewing) to asp.net, and then provide an Android app for mobile phone use, if the server is assumed in the cloud, all People can interact.
    Downloads: 3 This Week
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  • 2
    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: 3 This Week
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  • 3
    YamlDotNet

    YamlDotNet

    YamlDotNet is a .NET library for YAML

    YamlDotNet provides low-level parsing and emitting of YAML as well as a high-level object model similar to XmlDocument. A serialization library is also included that allows to read and write objects from and to YAML streams. YAML, which stands for "YAML Ain't Markup Language", is described as "a human-friendly data serialization standard for all programming languages". Like XML, it allows to represent of any kind of data in a portable, platform-independent format. Unlike XML, it is "human friendly", which means that it is easy for a human to read or produce a valid YAML document. The library has now been successfully used in multiple projects and is considered fairly stable. The library is compatible with mono's Ahead-of-Time compilation (AOT), and should work correctly on platforms that depend on it, such as Unity.
    Downloads: 3 This Week
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  • 4
    passcore

    passcore

    A self-service password management tool for Active Directory

    PassCore is a very simple 1-page web application written in C#, using ASP.NET Core, Material UI (React Components), and Microsoft Directory Services (Default provider). It allows users to change their Active Directory/LDAP password on their own, provided the user is not disabled. PassCore does not require any configuration, as it obtains the principal context from the current domain. I wrote this because a number of people have requested several features that the original version did not have. The original version of this tool was downloaded around 8000 times in 2.5 years. My hope is that the new version continues to be just as popular. There really is no free alternative out there (that I know of) so hopefully, this saves someone else some time and money. We recommend use the docker image and redirect the traffic to nginx.
    Downloads: 3 This Week
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  • AestheticsPro Medical Spa Software Icon
    AestheticsPro Medical Spa Software

    Our new software release will dramatically improve your medspa business performance while enhancing the customer experience

    AestheticsPro is the most complete Aesthetics Software on the market today. HIPAA Cloud Compliant with electronic charting, integrated POS, targeted marketing and results driven reporting; AestheticsPro delivers the tools you need to manage your medical spa business. It is our mission To Provide an All-in-One Cutting Edge Software to the Aesthetics Industry.
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  • 5
    taskt

    taskt

    Free and open-source robotic process automation (rpa)

    taskt (formerly sharpRPA) is the first truly free, easy-to-use, and open-source process automation client built on the .NET Framework in C#. taskt allows you to build and design process automation without needing to write application code. taskt allows you to automate the boring stuff and create efficienies by giving you the power to craft a digital workforce that executes and performs rule-based automation. No API? No Problem! Included is a "what you see is what you get" bot designer with dozens of automation commands. An element recorder and screen recorder is also included that can record and replay scripted automation. taskt works by allowing a bot developer to design a bot configuration known as a script. The bot configuration is then intepreted by a script engine at run-time and executes against the bot developer's selected parameter inputs. Each command contains the definitions for the required inputs as well as the required logic at run-time.
    Downloads: 3 This Week
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  • 6
    Bing.NetCore

    Bing.NetCore

    Bing is a framework based on .net core 3.1

    Bing is a framework based on .net core 3.1, aiming to improve the development output capability of the team. It consists of commonly used public operation classes (tool classes, help classes), layered architecture base classes, third-party component packaging, third-party business interface packaging, etc. Bing is a .net coreplatform-based application framework designed to improve the development output capabilities of small teams. It consists of commonly used public operation classes (tool classes, help classes), layered architecture base classes, third-party component packaging, third-party business interface packaging, etc. composition.
    Downloads: 2 This Week
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  • 7
    CSCore

    CSCore

    An advanced audio library, written in C#. Provides tons of features

    An advanced audio library, written in C#. Provides tons of features. From playing/recording audio to decoding/encoding audio streams/files to processing audio data in real-time (e.g. applying custom effects during playback, creating visualizations). The possibilities are nearly unlimited. CSCore is a free .NET audio library which is completely written in C#. Although it is still a rather young project, it offers tons of features like playing or capturing audio, en- or decoding many different codecs, effects and much more! CSCore is based on a very extensible architecture that allows you to make it fit to your needs without any major effort. You can build music players, voice chats, audio recorders and so on! Supported platforms, Windows only, Linux and mac experimental. Optimized performance though the usage of CLI instructions provided by a custom post compiler.
    Downloads: 2 This Week
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  • 8
    CacheManager

    CacheManager

    CacheManager is an open source caching abstraction layer for .NET

    CacheManager is an open source caching framework for .NET written in C# and is available via NuGet. It supports various cache providers and implements many advanced features. A simple but very efficient implementation. This handle is faster than any other in most scenarios and works cross-platform. Two implementations are available, based on System.Runtime.Caching and based on the new Microsoft.Extensions.Caching.Memory package. Redis can be used as an extremely fast and reliable out-of-process (or distributed) solution. Another great distributed solution is memcached, which can be used as a layer. The Redis implementation is based on the popular StackExchange.Redis package. Couchbase is primarily a document database but can also be used for simple caching. ASP.NET comes with its own in-process memory cache which can be used as one layer. Our Web NuGet package also comes with a custom OutputCacheProvider.
    Downloads: 2 This Week
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  • 9
    CppSharp

    CppSharp

    Tools and libraries to glue C/C++ APIs to high-level languages

    CppSharp is a tool and set of libraries that facilitates the usage of native C/C++ code with the .NET ecosystem. It consumes C/C++ header and library files and generates the necessary glue code to surface the native API as a managed API. Such an API can be used to consume an existing native library in your managed code or add managed scripting support to a native codebase. The supported target languages at present are C# and C++/CLI. It can also be used as a library to parse native code into a syntax tree with a rich declaration and type information model. Generates the glue binding code from a syntax tree of the native code. Provides APIs for parsing of C/C++ source code into a syntax tree. Mirrors the Clang's C/C++ AST and type system classes in C# APIs.
    Downloads: 2 This Week
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  • Rezku Point of Sale Icon
    Rezku Point of Sale

    Designed for Real-World Restaurant Operations

    Rezku is an all-inclusive ordering platform and management solution for all types of restaurant and bar concepts. You can now get a fully custom branded downloadable smartphone ordering app for your restaurant exclusively from Rezku.
    Learn More
  • 10
    Discord.Net

    Discord.Net

    An unofficial .Net wrapper for the Discord API

    Discord.Net is an asynchronous, multi-platform .NET Library used to interface with the Discord API. Nightlies are builds of Discord.NET that are still in an experimental phase, and have not been released. These are not included in the main repository and are instead taken over by Discord.NET Labs. Discord.NET Labs is an experimental fork of Discord.NET that implements the newest discord features for testing and development to eventually get merged into Discord.NET. A counterpart to the well-known command service of Discord.Net, the Interaction Framework implements the same feature-rich structure to register & handle interactions like application commands & buttons. Slash commands are purposed to take over the normal prefixed commands in Discord and come with good functionality to serve as a replacement. Being interactions, they are handled as SocketInteractions. Components of a message such as buttons and dropdowns, which can be interacted with and responded to.
    Downloads: 2 This Week
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  • 11
    Entity Framework 6

    Entity Framework 6

    This is the codebase for Entity Framework 6

    Entity Framework 6 (EF6) is a proven object-relational (O/RM) mapper for .NET with many years of feature development and stabilization. Like O/RM, EF6 reduces the impedance mismatch between the relational and object-oriented worlds, allowing developers to write applications that interact with data stored in relational databases with strongly typed .NET objects that represent the domain of the database. application, and eliminate the need for much of the data access "mechanical" code that you would normally write. Mapping POCO entity classes that do not depend on any EF type. Models can be generated from existing databases and then manually edited, or they can be created from scratch and then used to generate new databases. Integration with .NET Framework application models, including ASP.NET, and through data binding, with WPF and WinForms. Database connectivity based on ADO.NET and various providers available to connect to SQL Server, Oracle, MySQL, SQLite, PostgreSQL, DB2, etc.
    Downloads: 2 This Week
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  • 12
    FileHelpers

    FileHelpers

    The FileHelpers are a free and easy to use .NET library to read/write

    FileHelpers is a free and easy-to-use .NET library to import or export data from fixed length or delimited records in files, strings or streams. You can strongly type your flat file (fixed or delimited) by simply describing a class that maps to each record and later read or write your file as a strongly typed .NET array. The library also has support to import or export data from different data storage types like Excel, Access, SqlServer, etc. In almost every project there is a need to read or write data from/to a file of a specified format. For example, log parsing, data warehouse and OLAP applications, communication between systems, file format transformations (for example transforming from a fixed length to a CSV file). The FileHelpers library is straightforward to learn and use. The engines of the library contain events to make it easier to extend the behavior of the library.
    Downloads: 2 This Week
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  • 13
    FluentDocker

    FluentDocker

    Use docker, docker-compose local and remote in tests

    This library enables docker and docker-compose interactions using a Fluent API. It is supported on Linux, Windows, and Mac. It also has support for the legazy docker-machine interactions. The fluent API builds up one or more services. Each service may be composite or singular. Therefore it is possible to e.g. fire up several docker-compose-based services and manage each of them as a single service or dig in and use all underlying services on each docker-compose service.
    Downloads: 2 This Week
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  • 14
    ImageProcessor

    ImageProcessor

    Wrapper around System.Drawing for the processing of image files

    A .NET library for on-the-fly processing of images. ImageProcessor is a collection of lightweight libraries written in C# that allows you to manipulate images on-the-fly using .NET 4.5+. It consists of two main libraries ImageProcessor, for desktop and application use and ImageProcessor.Web, a dynamic image processing extension built for ASP.NET. It’s lighting fast, extensible, easy to use, comes bundled with some great features and is fully open source. ImageProcessor is free and open source but developing it has taken thousands of hours of my time and a large part of my sanity. If you feel like dropping me a few precious pounds (there’s no obligation) it would go a great way to ensure that I can afford to take the time to continue to improve the library. It's fast, extensible, easy to use, comes bundled with some great features and is fully open source.
    Downloads: 2 This Week
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  • 15
    MahApps.Metro

    MahApps.Metro

    Cobble together a better UI for their own WPF applications

    MahApps.Metro is a framework that allows developers to cobble together a Metro or Modern UI for their own WPF applications with minimal effort. MahApps.Metro overrides the default style of all common WPF controls and gives them a modern look. MahApps.Metro also includes some custom controls based on concepts from Windows Phone, Windows 8 and Window 10 (UWP) Apps. You can install MahApps.Metro via the NuGet UI or with the Package Manager Console. If you want to use a pre-release packages of MahApps.Metro, you need to enable Include Prerelease in the NuGet UI. All resources of MahApp.Metro are located within separate resource dictionaries. To adopt the MahApps.Metro theme, you will need to add the resource dictionaries to your App.xaml. To start with the full MahApps styling and full window support you need to change your normal Window to our MetroWindow.
    Downloads: 2 This Week
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  • 16
    Marten

    Marten

    .NET Transactional Document DB and Event Store on PostgreSQL

    The Marten library provides .NET developers with the ability to use the proven PostgreSQL database engine and its fantastic JSON support as a fully-fledged document database. The Marten team believes that a document database has far-reaching benefits for developer productivity over relational databases with or without an ORM tool. Marten also provides .NET developers with an ACID-compliant event store with user-defined projections against event streams. Use proven PostgreSQL database engine, its fantastic JSON support and ACID compliance as the underlying data store. A robust and full-fledged document database to boost your developer productivity. Build event-sourced style systems with ease to store events and streams. Use projections to create read-side views. Refer to the build commands section to look up the commands to run Mocha tests.
    Downloads: 2 This Week
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  • 17
    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: 2 This Week
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  • 18
    NUnit 3 Framework

    NUnit 3 Framework

    NUnit 3 Framework

    NUnit is a unit-testing framework for all .Net languages. Initially ported from JUnit, the current production release, version 3, has been completely rewritten with many new features and support for a wide range of .NET platforms. NUnit is intended to be extensible. We can't do everything for everybody but we want to make it reasonably easy to extend NUnit. In many cases, users will be able to implement a special feature outside of our scope by simply creating a new attribute that embeds the required logic. In other cases, particularly in extending the engine, we rely on a plugin architecture. When running tests in a separate process, the console and gui runners make use of the NUnit Agent program, nunit-agent.exe. Although not directly run by users, nunit-agent does load and execute tests and users need to be aware of it, especially when debugging is involved.
    Downloads: 2 This Week
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  • 19
    Vlc.DotNet

    Vlc.DotNet

    .NET control that hosts the audio/video capabilities of the VLC libs

    Vlc.DotNet is a .net library that hosts the audio/video capabilities of the VLC libraries. In other words, it's a .net wrapper around libvlc. That's why a new control has been written. To be fair, first versions of Vlc.DotNet were built with that technique, but back then, there were issues in the .net framework causing the memory usage to explode. As of 2018, this issue is resolved. The old WPF control was just a wrapper around the WinForms control. This led to some issues (Airspace issue...) and lacked some WPF-ish features. Vlc.DotNet is a .net library that hosts the audio/video capabilities of the VLC libraries. In other words, it's a .net wrapper around libvlc. It can work on any .net framework version starting from .net 2.0 and .net standard 1.3 (starting from Vlc.DotNet 2.2.1). On the front-end side, two components are currently available to make it easy to integrate in your apps. One is for WinForms, the other for WPF.
    Downloads: 2 This Week
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  • 20
    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: 7 This Week
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  • 21
    An open source starter package for creating Minecraft type games, using Unity 3 by Unity Technologies.
    Downloads: 9 This Week
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  • 22
    .NET

    .NET

    This repo is the official home of .NET on GitHub

    This repository is the home of the .NET platform’s source, infrastructure, and ecosystem coordination. It serves as a “virtual monolithic repo” that aggregates the components (runtime, SDK, libraries, tools) needed to build the .NET SDK and platform. It is a central launching point for understanding, contributing to, or navigating .NET’s many open source subprojects and documentation. Contains policies, guidelines, documentation, and meta-project glue. Synchronization of subprojects into a unified view (Virtual Monolithic Repository). Issue triaging, contribution workflows, and governance linking across subrepos. Acts as an entrypoint/road map for .NET’s broad open source ecosystem.
    Downloads: 1 This Week
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  • 23
    Coravel

    Coravel

    Near-zero config .NET Core micro-framework

    Near-zero config .NET Core library that makes Task Scheduling, Caching, Queuing, Mailing, Event Broadcasting (and more) a breeze! Coravel is designed to be intuitive and straightforward so you can focus on your app. Stop wasting hours on configuring your boilerplate/infrastructural code and focus on delivering value to your customers. Coravel is designed from the ground-up to hook into .NET Core with zero-fuss. Usually, you have to configure a cron job or a task via Windows Task Scheduler to get a single or multiple re-occurring tasks to run. With Coravel, you can setup all your scheduled tasks in one place using a simple, elegant, fluent syntax, in code! Coravel gives you a zero-configuration queue that runs in-memory to offload long-winded tasks to the background instead of making your users wait for their HTTP request to finish!
    Downloads: 1 This Week
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  • 24
    CoreCLR

    CoreCLR

    Runtime for .NET Core

    CoreCLR is the runtime for .NET Core, an open source, general purpose development platform maintained by Microsoft and the .NET community. It is a cross-platform runtime for cloud, IoT, and desktop apps and includes a just-in-time compiler called RyuJIT.
    Downloads: 1 This Week
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  • 25
    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).
    Downloads: 1 This Week
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