Simple, powerful, cross-platform SQLite client and ORM for .NET

Open XML SDK by Microsoft

SuperSocket is a light weight, cross platform and extensible socket server application framework.

The .NET MVVM framework for cross-platform solutions, including Android, iOS, MacCatalyst, macOS, tvOS, WPF, WinUI

A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Targets .NET Framework 4.7, as well as .NET Core 2.1, .NET …

Math.NET Numerics

AutoFixture is an open source library for .NET designed to minimize the 'Arrange' phase of your unit tests in order to maximize maintainability. Its primary goal is to allow developers to focus on …

A cross-platform plotting library for .NET

Source from the Microsoft .NET Reference Source that represent a subset of the .NET Framework

[Archived] This repository has been archived

A 100% native C# implementation of ZeroMQ for .NET

A GitHub API client library for .NET

Modern UI for WPF

🚌 Simple and lean service bus implementation for .NET

C# Websocket Implementation

Castle Core, including Castle DynamicProxy, Logging Services and DictionaryAdapter

Open source templating engine based on Microsoft's Razor parsing engine

Build, version, and monitor better microservices with the most powerful service platform for .NET

OpenID Connect Provider and OAuth 2.0 Authorization Server Framework for ASP.NET 4.x/Katana

The Service Bus Explorer allows users to connect to a Service Bus namespace and administer messaging entities in an easy manner. The tool provides advanced features like import/export functionality…

OPC Unified Architecture .NET Standard

The WPF-based text editor component used in SharpDevelop

A .NET MIME creation and parser library with support for S/MIME, PGP, DKIM, TNEF and Unix mbox spools.

A small, happy, dynamic MicroORM for .NET that will love you forever.

A C# implementation of the OpenID, OAuth protocols

Making Windows 10 apps great again

[DEPRECATED] .NET port of the iText library, only security fixes will be added — please use iText for .NET

A light-weight, dynamic data access component for C# 4.0

S7.NET+ -- A .NET library to connect to Siemens Step7 devices

Excel-DNA - Free and easy .NET for Excel. This repository contains the core Excel-DNA library.