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System.IO.Abstractions
Just like System.Web.Abstractions, but for System.IO. Yay for testable IO access!

Microsoft.IO.RecyclableMemoryStream
A library to provide pooling for .NET MemoryStream objects to improve application performance.

Caliburn.Micro
A small, yet powerful framework, designed for building applications across all XAML platforms. Its strong support for MV* patterns will enable you to build your solution quickly, without the need to s

CsQuery
CsQuery is a complete CSS selector engine, HTML parser, and jQuery port for C# and .NET 4.

ImageProcessor
:camera: A cross-platform library for processing of image files written in C#

npgsql
Npgsql is the .NET data provider for PostgreSQL. It allows any program developed for .NET framework to access a PostgreSQL database server. It is implemented in 100% C# code. PostgreSQL versions since

FileHelpers
The FileHelpers are a free and easy to use .NET library to read/write data from fixed length or delimited records in files, strings or streams

SharpZipLib
#ziplib is a Zip, GZip, Tar and BZip2 library written entirely in C# for the .NET platform.

AngleSharp
:angel: The ultimate angle brackets parser library parsing HTML5, MathML, SVG and CSS to construct a DOM based on the official W3C specifications.

Windsor
Castle Windsor is a best of breed, mature Inversion of Control container available for .NET and Silverlight

machine.specifications
Machine.Specifications is a Context/Specification framework geared towards removing language noise and simplifying tests.

corefxlab
This repo is for experimentation and exploring new ideas that may or may not make it into the main corefx repo.

Rebus
:bus: Rebus is a lean service bus implementation for .NET, similar in nature to NServiceBus and MassTransit, only leaner.

ModernHttpClient
HttpClient implementations that use platform-native HTTP clients for :rocket:

codeformatter
Tool that uses Roslyn to automatically rewrite the source to follow our coding styles

museum-piece-owin
OWIN defines a standard interface between .NET web servers and web applications.

callisto
A control toolkit for Windows 8 XAML applications. Contains some UI controls to make it easier to create Windows UI style apps for the Windows Store in accordance with Windows UI guidelines.

Nancy
Lightweight, low-ceremony, framework for building HTTP based services on .Net and Mono

Simple.Web
A lightweight, object-oriented (Model-View-Handler) framework for modern web development in .NET.

CommonMark.NET
Implementation of CommonMark specification in C# for converting Markdown documents to HTML. Optimized for maximum performance and portability.

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