Dapper - a simple object mapper for .Net

Json.NET is a popular high-performance JSON framework for .NET

Simple REST and HTTP API Client for .NET

Incredibly simple real-time web for .NET

The automatic type-safe REST library for .NET Core, Xamarin and .NET. Heavily inspired by Square's Retrofit library, Refit turns your REST API into a live interface.

Quartz Enterprise Scheduler .NET

Thoughtfully architected, obscenely fast, thoroughly enjoyable web services for all

A server-side library for sending Push Notifications to iOS (iPhone/iPad APNS), Android (C2DM and GCM - Google Cloud Message), Windows Phone, Windows 8, Amazon, Blackberry, and (soon) FirefoxOS dev…

Fluent migrations framework for .NET

Git + .NET = ❤

The Official C# .NET Driver for MongoDB

the ninja of .net dependency injectors

A tiny, friendly, C# parser construction library

MarkPad - a visual Markdown editor (inspired by the Downmarker project)

Official software for blink(1) USB RGB LED by ThingM

The MSBuild Community Tasks Project is an open source project for MSBuild tasks.

The Boo Programming Language.

It's like ClickOnce but Works™

HTTP wrapper around NRefactory allowing C# editor plugins to be written in any language.

NuGet addin for MonoDevelop and Xamarin Studio

Simple documentation done simply. .Net documentation generation

Simple REST and HTTP API Client for .NET