DotNet 资源大全中文版（Awesome最新版）
2017-03-16 15:05
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Awesome系列的.Net资源整理。awesome-dotnet是由quozd发起和维护。内容包括：编译器、压缩、应用框架、应用模板、加密、数据库、反编译、IDE、日志、风格指南等。
C# Algorithms - A C# plug-and-play class-library project of standard Data Structures and Algorithms. It contains 35+ Data Structures and 30+ Algorithms designed as Object-Oriented isolated components.
ASP.NET WebAPI - Framework that makes it easy to build HTTP services that reach a broad range of clients, including browsers and mobile devices
Breeze - Api framework enabling rich data access by using the OData 3 protocol. Client libraries available for Javascript and C#.
Mobius: C# API for Spark - Mobius adds C# language binding to Apache Spark, enabling the implementation of Spark driver code and data processing operations in C#.
ServiceStack - Thoughtfully architected, obscenely fast, thoroughly enjoyable web services for all
Nelibur - Nelibur is message based web service framework on the pure WCF. Nelibur simplifies creating high-performance and message based web services and you certainly have all the power of the WCF.
WebAPI Contrib - Collection of open source projects to help improve your work with ASP.NET Web API
Orleans - Orleans is a framework that provides a straight-forward approach to building distributed high-scale computing applications, without the need to learn and apply complex concurrency or other scaling patterns
CoreFX - The corefx repo contains the library implementation (called "CoreFX") for .NET Core. It includes System.Collections, System.IO, System.Xml and many other components. It builds and runs on Windows. You can 'watch' the repo to see Linux and Mac support being added over the next few months.
CSLA .NET - business layer development framework http://cslanet.com/
Mono - Mono open source ECMA CLI, C# and .NET implementation
Mono-Addins - Mono.Addins is a generic framework for creating extensible applications, and for creating add-ins which extend those applications
peasy - Peasy is a middle tier framework that offers an easy to use and flexible rules engine and was designed to address common challenges such as concurrency handling, transactional support, fault tolerance, threading, scalability, async and multiple client support, and easy testability, all without a huge learning curve!
Spring.Net - Spring.NET is an open source application framework that makes building enterprise .NET applications easier
DotNetty - DotNetty is a port of Netty, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.
MVC.Template - ASP.NET Core MVC project starter template.
ProjectScaffold - A prototypical .NET solution recommended by the F# Foundation---includes file system setup, Paket for dependencies and FAKE for build/test automation. By default, build process also compiles documentation and generates NuGet packages.
Serene - Serenity is an ASP.NET MVC application platform designed to simplify and shorten development of data-centric business applications with a service based architecture. Serene is a starter template to build Serenity applications.
Side-Waffle - Large collection of useful templates for Web and Desktop development.
Template10 - Windows 10 templates with design patterns.
SIML - Synthetic Intelligence Markup Language, a next generation Chatbot & Digital Assistant Language.
Fody - Extensible tool for weaving .net assemblies
Mono.Cecil - Cecil is a library to generate and inspect programs and libraries in the ECMA CIL form.
NodeAssets - Asset Manager for .net that has live css updates using SignalR and can optionally leverage NodeJS compilers
Bundle Transformer - Modular extension for Microsoft ASP.NET Web Optimization Framework. Its modules supports LESS, Sass, CoffeeScript, TypeScript, Mustache, Handlebars, Autoprefixer along with a bunch of different JS and CSS minifiers.
Bundler - Compile & Minify Less/Sass/Stylus/Css/JS/CoffeeScript/LiveScript files. Integrates with MVC and ServiceStack
SquishIt - Lets you easily bundle some css and javascript
DotNetOpenAuth - A C# implementation of the OpenID, OAuth and InfoCard protocols
Logibit Hawk - A F# Hawk authentication library
IdentityModel - Helper library for identity & access control in .NET 4.5 and MVC4/Web API.
IdentityServer - Extensible OAuth2 and OpenID Connect provider framework.
OAuth - A very lightweight library for generating OAuth 1.0a signatures written in C#
Stuntman - Stuntman is a library for impersonating users during development leveraging .NET Claims Identity.
CLR via C# - Dig deep and master the intricacies of the common language runtime, C#, and .NET development. [$]
Functional Programming in C# - teaches how to best leverage the functional features of the C# language. [$]
Microservices in .NET Core - shows you how to build maintainable, secure and operations-friendly microservices using Nancy and .NET Core. [$]
FAKE - F# Make, a cross platform build automation system
Invoke-Build - PowerShell build and test automation tool inspired by Psake.
MSBuild - The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio
Cake - Cake (C# Make) is a cross platform build automation system with a C# DSL.
Nake - Magic script-based C# task runner
Akavache - An asynchronous, persistent key-value store
CacheManager - A common interface and abstraction layer for caching.
CacheAdapter - Another common cache abstraction layer for caching with enhanced cache API usage.
Foundatio - A common interface with in memory, redis and hybrid implementations.
Fluent Command Line Parser - A simple, strongly typed .NET C# command line parser library using a fluent easy to use interface
Power Args - PowerArgs converts command line arguments into .NET objects that are easy to program against. It also provides a ton of optional capabilities such as argument validation, auto generated usage, tab completion, and plenty of extensibility
Argu - Declarative CLI argument & XML configuration parser for F# applications.
Appccelerate - Command Line Parser - A command line parser with fluent definition syntax, different argument types, required and optional arguments, value restrictions, aliases, type conversion and semi-automatic usage help message composition
Colorful.Console - Colorful console output.
mojoPortal - MojoPortal is an extensible, cross database, mobile friendly, web content management system (CMS) and web application framework written in C# ASP.NET
N2CMS - Open source, lightweight, code-first CMS able to seamlessly integrate into any MVC project.
Orchard - Free, open source, community-focused project aimed at delivering applications and reusable components on the ASP.NET platform
Piranha CMS - Piranha is the fun, fast and lightweight .NET framework for developing cms-based web applications with an extra bite. It's built on ASP.NET MVC and Web Pages and is fully compatible with both Visual Studio and WebMatrix. http://piranhacms.org
Umbraco - Umbraco is a free open source Content Management System built on the ASP.NET platform
BetterCMS - Open Source .NET Intuitive User Interface for Developer and Publisher
DotNetNuke - DNN Platform is our free, open source web CMS and the foundation of every professional DNN solution. Over 750,000 organizations worldwide have built websites powered by the DNN Platform.
CodeMaid - Visual studio extension to cleanup, dig through and simplify C#, C++, F#, VB, PHP, JSON, XAML, XML, ASP, HTML, CSS, LESS, SCSS, JavaScript and TypeScript coding.
StyleCop - StyleCop analyzes C# source code to enforce a set of style and consistency rules
Gendarme - Extensible rule-based tool to find problems in .NET applications and libraries
Metrics-Net - Capturing CLR and application-level metrics. So you know what's going on.
AspNet.Metrics - Capturing CLR, application-level web request metrics. Middleware and extensions using Metrics-Net
BenchmarkDotNet - Powerful .NET library for benchmarking.
Codinion - Enhanced syntax highlighting for C# and some other "Visual" features.
Gistlyn - Create, run and share your executable C# Github Gists.
TryRoslyn - Run C# code using different branches and versions of Roslyn.
ClojureCLR - A port of Clojure to the CLR, part of the Clojure project
F# - The F# compiler, core library and tools - a functional programming language for safer, faster, better code writing.
FunScript - F# to JavaScript compiler with JQuery etc. mappings through a TypeScript type provider.
IronScheme - R6RS Scheme compiler, runtime and many standard libraries
JSIL - CIL to Javascript Compiler http://jsil.org/
Mono-basic - Visual Basic Compiler and Runtime
Nemerle - Nemerle is a high-level statically-typed programming language for the .NET platform. It offers functional, object-oriented and imperative features. It has a simple C#-like syntax and a powerful meta-programming system. http://nemerle.org/About
Netjs - .NET to TypeScript and JavaScript compiler. Portable Class Libraries work great for this. You can even pass EXEs.
P - P is a language for asynchronous event-driven programming.
Roslyn - The .NET Compiler Platform ("Roslyn") provides open-source C# and Visual Basic compilers with rich code analysis APIs. It enables building code analysis tools with the same APIs that are used by Visual Studio.
VisualFSharp - The Visual F# compiler and tools
Fable - F# to JavaScript Compiler
LinqOptimizer - An automatic query optimizer-compiler for Sequential and Parallel LINQ
Roslyn-linq-rewrite - Compiles C# code by first rewriting the syntax trees of LINQ expressions using plain procedural code, minimizing allocations and dynamic dispatch.
DotNetZip.Semverd - An open-source project that delivers a .NET library for handling ZIP files, and some associated tools. (fork of Unmaintained DotNetZip)
SharpZipLib - a Zip, GZip, Tar and BZip2 library written entirely in C# for the .NET platform
Snappy for Windows - Snappy compression library for .NET baked on PInvoke
Snappy.Sharp - An implementation of Google's Snappy compression algorithm in C#.
CruiseControl.NET - an Automated Continuous Integration server, implemented using the .NET Framework
MyGet - Continuous Integration and Deployment, Hosted Package Repository for NuGet, NPM, Bower and VSIX. [Free for OSS] [$]
AppVeyor - .NET Continuous Integration and Deployment as a service. [$] [Free for OSS]
HashLib - HashLib is a collection of nearly all hash algorithms you've ever seen, it supports almost everything and is very easy to use
libsodium-net - libsodium for .NET - A secure cryptographic library
Pkcs11Interop - Managed .NET wrapper for unmanaged PKCS#11 libraries that provide access to the cryptographic hardware
StreamCryptor - Stream encryption & decryption with libsodium and protobuf
Event Store - The open-source, functional database with Complex Event Processing in JavaScript. https://geteventstore.com
LiteDB - A .NET NoSQL Document Store in a single data file - http://www.litedb.org
RavenDB - A linq enabled document database for .NET
Marten - Postgresql as a Document Database and Event Store for .Net Applications
Realm Xamarin - A fast, easy-to-use alternative to SQLite & ORMs - https://realm.io/docs/xamarin/latest/
Streamstone - Event store for Azure Table Storage
Ignite - Distributed in-memory platform: document database with SQL and LINQ support; distributed computations; distributed services and events.
Yessql - A .NET document database working on any RDBMS
Npgsql - .Net data provider for Postgresql
MongoDB - Official MongoDB C# Driver
RethinkDb.Driver - A RethinkDB database driver in C# striving for 100% ReQL API compatibility and completeness.
ServiceStack Redis - .NET's leading C# Redis Client
StackExchange Redis - General purpose redis client from StackExchange
Cassandra - DataStax .NET Driver for Apache Cassandra
Couchbase - Official couchbase .NET client library, based on the Enyim memcached client
Firebird.NET - The .NET Data provider is written in C# and provides a high-performance, native implementation of the Firebird API
DateTimeExtensions - Common Date Time operations on the form of extensions to System.DateTime, including holidays and working days calculations on several culture locales.
Exceptionless.DateTimeExtensions - DateTimeRange, Business Day and various DateTime, DateTimeOffset, TimeSpan extension methods.
JustDecompile Engine - The decompilation engine of JustDecompile
DbUp - .NET library that helps you to deploy changes to SQL Server databases. It tracks which SQL scripts have been run already, and runs the change scripts that are needed to get your database up to date
Octo Pack - Used to build nuget packages of your application for deployment using tools such as Octopus Deploy
SharpDX - SharpDX is an open-source project delivering the full DirectX API for .Net on all Windows platforms, allowing the development of high performance game, 2D and 3D graphics rendering as well as realtime sound application.
Orleankka - Orleankka is a functional API for Microsoft Orleans framework. It is highly suitable for scenarios where having composable, uniform communication interface is preferable, such as: CQRS, event-sourcing, re-routing, FSM, etc. Additional API avaiable for F# called Orleankka.FSharp.
Akka.net - Akka.NET is a port of the popular Java/Scala framework Akka to .NET. This is a community driven port and is not affiliated with Typesafe who makes the original Java/Scala version.
Zebus - Zebus is a lightweight, higlhy versatile, peer to peer service bus, built with CQRS principles in mind. It allows applications to communicate with each other in a fast and easy manner. Most of the complexity is hidden in the library and you can focus on writing code that matters to you, not debugging messaging code. A very fundamental base for any distributed application.
FsShelter - F# library for authoring Apache Storm components and topologies. Offering high-level abstractions for distributed and fault-tolerant event stream processing.
Foundatio - Pluggable foundation blocks for building distributed apps.
MBrace - Integrated Data Scripting for the Cloud
SharpDox - A c# documentation tool
SourceBrowser - Source browser website generator that powers https://referencesource.microsoft.com and http://source.roslyn.io
Swashbuckle - Seamlessly adds a swagger to WebApi projects!
F# Formatting - Tools for documenting F# and C# projects from F# Script files, Markdown documents and inline XML or Markdown comments
DocFX - Tools for building and publishing API documentation for .NET projects
DocNet - Your friendly static documentation generator, using markdown files to build the content.
NopCommerce - nopCommerce. Free open-source ecommerce shopping cart (ASP.NET MVC)
ServiceStack.Stripe - Typed .NET clients for stripe.com REST APIs
SmartStoreNET - Free ASP.NET MVC Ecommerce Shopping Cart Solution https://www.smartstore.com/en/net
Stripe.Net - Stripe.net is a full service .net api for https://stripe.com/
BeYourMarket - BeYourMarket is a peer-to-peer marketplace framework http://beyourmarket.com
Virto Commerce - Virto Commerce is the second generation release and is the only enterprise level e-commerce product fully available under Open Source license. Virto Commerce is based on .NET 4.5 with extensive use of MVC, IoC, EF, Azure, Angular JS and many other cutting edge technologies. It can be deployed in Microsoft Cloud (Azure), Amazon Web Services (AWS) and on-premise. https://virtocommerce.com
CocosSharp - CocosSharp is a C# implementation of the Cocos2D and Cocos3D APIs that runs on any platform where MonoGame runs
Duality - Duality is a 2D game development framework. Focused on modularity, comes with a visual editor.
Xenko - Xenko is a 2D/3D cross-platform game engine featuring a scene editor, particles, physically based rendering (PBR), scripting, and much more
Wave Engine - Wave engine is a free c# component-based modern game engine which allows you to create cross-platform games supporting kinect, oculusrift, vuforia, cardboard, leapmotion and much more. [Free][Proprietary]
UrhoSharp - UrhoSharp is a C# implementation of the Urho3D game engine that runs on iOS, Mac, Windows, Android and Linux systems
Nez - Nez is a free 2D focused framework that works with MonoGame and FNA
SharpMap An easy-to-use mapping library for use in web and desktop applications
OsmSharp - C# library to work with OpenStreetMap (OSM) data. Provides reading, writing and route-planning for OSM data.
GitExtensions - GitExtensions is a shell extension, a Visual Studio 2008/2010/2012/2013 plugin and a standalone Git repository tool. http://gitextensions.github.io/
GitLink - let's users step through their code hosted on GitHub or BitBucket
GitVersion - Generate a Semantic Version Number based on the state of your Git Repository
LibGit2Sharp - LibGit2Sharp brings all the might and speed of libgit2, a native Git implementation, to the managed world of .Net and Mono.
NGit - NGit is a port of JGit to C#
posh-git - A PowerShell environment for Git
Git Credential Manager for Windows - Helps solving issues of credentials, made by Microsoft
Oxyplot - OxyPlot is a cross-platform plotting library for .NET
OpenTK - The Open Toolkit is an advanced, low-level C# library that wraps OpenGL, OpenCL and OpenAL
NGraphics - NGraphics is a cross-platform library for rendering vector graphics on .NET
Live-Charts - An Animated, MVVM oriented and modern charting library
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.
ObjectListView - ObjectListView is a C# wrapper around a .NET ListView. It makes the ListView much easier to use and teaches it some new tricks
DockPanelSuite - The Visual Studio inspired docking library for .NET WinForms
AvalonEdit - The WPF-based text editor component used in SharpDevelop
XWT - A cross-platform UI toolkit for creating desktop applications with .NET and Mono
Gtk# - Gtk# is a Mono/.NET binding to the cross platform Gtk+ GUI toolkit and the foundation of most GUI apps built with Mono
MaterialDesignInXamlToolkit - Toolkit for creating Material styled WPF apps
Eto.Forms - Cross platform GUI framework for desktop and mobile applications in .NET and Mono
Dragablz - Dragable, tearable WPF tab control (similar to Chrome) which supports layouts and is full themeable, including themese compatible with MahApps and Material Design.
Fluent.Ribbon - Fluent Ribbon Control Suite is a library that implements an Office- and Windows 8-like Ribbon for WPF.
Office Ribbon - A library that implements MS Office Ribbon for WinForms.
Perspex - A multi-platform .NET UI framework.
MaterialSkin - Theming .NET WinForms, C# or VB.Net, to Google's Material Design Principles.
Xamarin.Forms - Build native UIs for iOS, Android and Windows from a single, shared C# codebase.
SciterSharp - Create .NET cross-platform desktop apps using not just HTML, but all features of Sciter engine: CSS3, SVG, scripting, AJAX, <video>... Sciter is free for commercial use
Empty Keys UI - Multi-platform and multi-engine XAML based user interface library [Free][Proprietary]
UWP Community Toolkit - The UWP Community Toolkit is a collection of helper functions, custom controls, and app services. It simplifies and demonstrates common developer tasks building UWP apps for Windows 10.
ScintillaNET - Windows Forms control for the Scintilla text editor component (Scintilla is used by Notepad++)
FastColoredTextBox - Fast Colored TextBox is text editor component for .NET. Allows you to create custom text editor with syntax highlighting. It works well with small, medium, large and very-very large files.
CsQuery - HTML5 parser with jQuery style DOM interaction
dotless - .NET Port of the ruby Less CSS lib http://www.dotlesscss.org
ExCSS - CSS3 parser Library for C#
FluentBootstrap - Makes the Bootstrap CSS framework easier to use from ASP.NET MVC or WebPages.
HtmlAgilityPack - an agile HTML parser that builds a read/write DOM and supports plain XPATH or XSLT
RestSharp - Simple REST and HTTP API Client for .NET
Flurl.Http - Fluent, portable, testable REST/HTTP client library
EasyHttp - Http Library for C#
Refit - The automatic type-safe REST library for Xamarin and .NET
RestEase - Easy-to-use typesafe REST API client library, which is simple and customisable. Heavily inspired by Refit
HttpClientGoodies - utilities for working with
MonoDevelop - MonoDevelop is a cross platform IDE mostly aimed at Mono/.NET developers
Visual Studio Express - The free lightweight version of Visual Studio for .NET programming.
Visual Studio Community - A full-Featured IDE - Free
Waf DotNetPad - A simple and fast code editor that makes fun program with C# or Visual Basic.
Visual Studio Code - Excellent free editor from Microsoft, based on GitHub Atom.
Ionide - An Atom Editor and Visual Studio Code package suite for cross platform F# development.
Rider - A cross-platform C# IDE based on the IntelliJ platform and ReSharper
ImageProcessor - Open-source .NET library to manipulate images on-the-fly.
DynamicImage - High-performance open-source image manipulation library for ASP.NET.
MetadataExtractor - Extracts Exif, IPTC, XMP, ICC and other metadata from image files.
Emgu CV - Cross-platform .NET wrapper for the OpenCV library.
DotImaging - Minimalistic .NET imaging portable platform
Magick.NET - .NET wrapper for the ImageMagick library.
Squirrel - Squirrel is both a set of tools and a library, to completely manage both installation and updating your Desktop Windows application.
Chocolatey - like yum or apt-get, but for Windows.
MessageFormat.NET - ICU MessageFormat implementation in .NET lets you write contextual UI messages (PCL library)
Sharpen - Sharpen is an Eclipse plugin created by db4o that allows you to convert your Java project into C#
CXXI - C++ interop framework
Unity - Lightweight extensible dependency injection container with support for constructor, property, and method call injection
Autofac - An addictive .NET IoC container
Ninject - The ninja of .net dependency injectors
StructureMap - The original IoC/DI Container for .Net
Spring.Net - Spring.NET is an open source application framework that makes building enterprise .NET applications easier
LightInject - A ultra lightweight IoC container
TinyIoC - Single-file, easy and cross-platform IoC container
Simple Injector - Simple Injector is an easy-to-use Dependency Injection (DI) library for .NET 4+ that supports Silverlight 4+, Windows Phone 8, Windows 8 including Universal apps and Mono.
Microsoft.Extensions.DependencyInjection - The default IoC container for ASP.NET Core applications.
Scrutor - Assembly scanning extensions for Microsoft.Extensions.DependencyInjection.
Edge.js - Run .NET and Node.js code in-process on Windows, MacOS, and Linux
Jint - JavaScript interpreter for .NET which provides full ECMA 5.1 compliance and can run on any .NET platform.
Jurassic - A implementation of the ECMAScript language and runtime. It aims to provide the best performing and most standards-compliant implementation of JavaScript for .NET.
NLog - NLog - Advanced .NET and Silverlight Logging
Logazmic - Open source nlog viewer for Windows
ELMAH - Official ELMAH site
Elmah MVC - Elmah for MVC
Logary - Logary is a high performance, multi-target logging, metric, tracing and health-check library for mono and .Net. .Net's answer to DropWizard. Supports many targets, built for micro-services.
Log4Net - The Apache log4net library is a tool to help the programmer output log statements to a variety of output targets
Serilog - A no-nonsense logging library for the NoSQL era. Combines the best of traditional and structured diagnostic logging in an easy-to-use package.
StackExchange.Exceptional - Error handler used for the Stack Exchange network
Semantic Logging Application Block (SLAB) - Extends the inbuilt features of System.Diagnostics.Tracing namespace (EventSource class) to log to several sinks including Azure Tables, Databases, files (JSON, XML, text). Supports in-process and out-of-process logging through ETW, and Rx for real-time filtering/aggregating of events.
Foundatio - A fluent logging api that can be used to log messages throughout your application.
Exceptionless - Exceptionless .NET Client
Loupe - Centralized .NET logging and monitoring. [Proprietary] [Free Tier]
Accord.NET - Machine learning framework combined with audio and image processing libraries (computer vision, computer audition, signal processing and statistics).
Accord.NET Extensions - Advanced image processing and computer vision algorithms made as fluent extensions.
AForge.NET - Framework for developers and researchers in the fields of Computer Vision and Artificial Intelligence (image processing, neural networks, genetic algorithms, machine learning, robotics).
Deedle - Data frame and (time) series library for exploratory data manipulation with C# and F# support
FsLab - A collection of data science and machine learning libraries for F# and .NET
numl - Designed to include the most popular supervised and unsupervised learning algorithms while minimizing the friction involved with creating the predictive models.
R Provider - Type provider that exposes R packages and functions in a type-safe way to F# callers
F# Data - F# type providers for accessing XML, JSON, CSV and HTML files (based on sample documents) and for accessing WorldBank data
F# Formatting - Tools for documenting F# and C# projects. The library contains extensible Markdown parser as a core component.
CommonMark.NET - Implementation of CommonMark specification in C# for converting Markdown documents to HTML. Optimized for maximum performance and portability.
markdig - A fast, powerful, CommonMark compliant, extensible Markdown processor for .NET.
Mail
FluentEmail - A Fluent Wrapper for System.Net.Mail with razor templating support.
MailKit - A complete cross-platform mail stack including IMAP, POP3, SMTP, authentication and more. Built on top of MimeKit.
MimeKit - A cross-platform .NET MIME creation and parser library with support for S/MIME, PGP, TNEF and Unix mbox spools.
PreMailer.Net - C# library that moves your stylesheets to inline style attributes, for maximum compatibility with E-mail clients.
Microsoft Automatic Graph Layout - A set of tools for graph layout and viewing.
UnitConversion - Expansible Unit Conversion Library for .Net Core and .Net Framework
metadata in media files, including video, audio, and photo formats
NAudio - Playback, decode and encode audio in a variety of file formats such as MP3, MP4, WAV, AIFF, Speex, etc.
Foundatio - A common interface with in memory, redis, StatsD, and Metrics.NET implementations.
Web Markup Minifier - .NET library that contains a set of markup minifiers. The objective of this project is to improve the performance of web applications by reducing the size of HTML, XHTML and XML code.
AzureCrawler - Take HTML Snapshots for your Angular, Ember, Durandal or any JavaScript applications
BitSharp - C# Bitcoin Node
CSScript - CS-Script is a CLR based scripting system which usesC# as a programming language. CS-Script currently targets Microsoft implementation of CLR (.NET 2.0/3.0/3.5/4.0/4.5) with full support on Mono. Comes with many additional features, such as script hosting.
CsvHelper - Library to help reading and writing CSV files https://github.com/JoshClose/CsvHelper
FlatMapper - A library to import and export data from and to plain text files in a Linq compatible way.
FluentValidation - A small validation library for .NET that uses a fluent interface and lambda expressions for building validation rules.
Humanizer - Humanizer meets all your .NET needs for manipulating and displaying strings, enums, dates, times, timespans, numbers and quantities
LINQPad - a C#/VB/F# scratchpad that instantly executes any expression, statement block or program with rich output formatting and a wealth of features. Also lets you interactively query databases in LINQ. [$]
Polly - Express transient exception handling policies such as Retry, Retry Forever, Wait andRetry or Circuit Breaker in a fluent manner. (.NET 3.5 / 4.0 / 4.5 / PCL / Xamarin)
Rant - The Rant Procedural Text Generation DSL http://berkin.me/rant/
ScriptCS - Write C# apps with a text editor, nuget and the power of Roslyn!
Shielded - Software Transactional Memory (STM) implementation for .NET
MSBuild ILMerge task - MSBuild ILMerge task is a NuGet package allows you to use the famous ILMerge utility in automated builds and/or Visual Studio projects.
ReactJS.NET - ReactJS.NET is a library that makes it easier to use Babel along with Facebook's React and JSX from C#.
Aeron.NET - Efficient reliable UDP unicast, UDP multicast, and IPC message transport - .NET port of Aeron
TypeShape - TypeShape is a small, extensible F# library for practical generic programming
Streams - A lightweight F#/C# library for efficient functional-style pipelines on streams of data.
MediatR - Simple, unambitious mediator implementation in .NET
Warden - Define "health checks" for your applications, resources and infrastructure. Keep your Warden on the watch
ByteSize - ByteSize is a utility class that makes byte size representation in code easier by removing ambiguity of the value being represented. ByteSize is to bytes what System.TimeSpan is to time.
Jot - a library for persisting and restoring application state (a better alternative to .settings files).
MVVM Light Toolkit - The main purpose of the toolkit is to accelerate the creation and development of MVVM applications in WPF, Silverlight, Windows Store (RT) and for Windows Phone
Catel - Catel is an application development platform with the focus on MVVM (WPF, Silverlight, Windows Phone and WinRT) and MVC (ASP.NET MVC). The core of Catel contains an IoC container, models, validation, memento, message mediator, argument checking, etc.
UpdateControls - Update Controls does not require that you implement INotifyPropertyChanged or declare a DependencyProperty. It connects controls directly to CLR properties. This makes it perfect for the Model/View/ViewModel pattern.
ReactiveUI - An MVVM framework for .NET that integrates the Reactive Extensions (Rx) framework, enabling developers to build elegant, testable applications using WPF, Windows Store Apps, WP8 or Xamarin.
Okra App Framework - An app centric MVVM framework for Windows 8.1 built with dependency injection in mind, including a full set of Visual Studio MVVM templates.
Prism - A cross-platform desktop and mobile MVVM development framework.
WPF Application Framework (WAF) - A lightweight Framework that helps you to create well structured WPF Applications. It supports you in applying a Layered Architecture and the Model-View-ViewModel pattern.
MVVMCross - Cross-platform mvvm mobile development framework for WPF, Silverlight for WP7 and WP8, Mono for Android, MonoTouch for iOS, Windows Universal projects (WPA8.1 and Windows 8.1 Store apps). Makes extensive use of Portable Class Libraries (PCL) to provide maintainable cross platform C# native applications.
Stylet - Minimal MVVM framework inspired by Caliburn Micro, with good documentation, high test coverage, and its own IoC container
Gemini - IDE framework similar in concept to the Visual Studio Shell. Built on WPF, AvalonDock, and Caliburn Micro.
TinyMapper - A tiny and quick object mapper for .Net.
ExpressMapper - A lightweight, lighting fast .Net mapper to map one type of object(s) to another in automated and easy way. ExpressMapper relies completely on the expression trees.
ClosedXML - ClosedXML makes it easier for developers to create Excel 2007/2010 files
NPOI - This project is the .NET version of POI Java project at http://poi.apache.org/.
EPPlus - EPPlus is a .net library that reads and writes Excel 2007/2010 files using the Open Office Xml format (xlsx).
Open XML SDK - The Open XML SDK provides open-source libraries for working with Open XML Documents (DOCX, XLSX, and PPTX).
BL Toolkit - Business Logic Toolkit for .NET
Dapper - A simple object mapper for .NET by StackExchange
Dapper Extensions - Small library that complements Dapper by adding basic CRUD operations (Get, Insert, Update, Delete) for your POCOs
Dapper.FastCRUD - The fastest micro-orm extension for Dapper
NHibernate - NHibernate Object Relational Mapper
Fluent NHibernate - Fluent, XML-less, compile safe, automated, convention-based mappings for NHibernate.
FluentMigrator - Fluent Migrations framework for .net
ServiceStack.OrmLite - Light, simple and fast convention-based POCO ORM [Free for OSS] [$]
Massive - A small, happy, data access tool that will love you forever.
LINQ to DB - The fastest LINQ database access library offering a simple, light, fast, and type-safe layer between your POCO objects and your database.
MicroLite ORM MicroLite ORM is a micro Object Relational Mapper for the .NET framework. It is designed to be easy to use, extensible and testable.
PetaPoco - A tiny ORM-ish thing for your POCOs
AsyncPoco - A long-"awaited" fully asynchronous PetaPoco fork
NPoco - Simple microORM that maps the results of a query onto a POCO object. Based on Schotime's branch of PetaPoco
Limebean - Hybrid ORM which uses SQL fragments and doesn't require Model Classes.
LLBLGen Pro - Entity Modeling solution for Entity Framework, NHibernate, Linq to SQL and its own ORM framework: LLBLGen Pro Runtime Framework. [$][Free Lite version]
Insight.Database - Insight.Database is a fast, lightweight, micro-orm for .NET
DbExtensions - Data-access framework with a strong focus on query composition, granularity and code aesthetics.
MyGet - Hosted Package Repository for NuGet, NPM, Bower and VSIX. Also provides CI as-a-Service. [Free for OSS] [$]
Paket - A package dependency manager for .NET with support for NuGet packages and GitHub repositories. http://fsprojects.github.io/Paket/
PDF
ITextSharp - iText is a PDF library that allows you to CREATE, ADAPT, INSPECT and MAINTAIN documents in the Portable Document Format (PDF)[$][Free for OSS]
Glimpse - The open source diagnostics platform for the web
Hangfire - Incredibly easy way to perform fire-and-forget, delayed and recurring tasks inside ASP.NET applications
RabbitMQ.NET - Implementation of an AMQP client library for C#, and a binding exposing AMQP services via WCF
NetMQ - NetMQ is 100% native C# port of ZeroMQ
MassTransit - MassTransit is lean service bus implementation for building loosely coupled applications using the .NET Framework.
Rebus - Rebus is a lean service bus implementation for .NET, similar in nature to NServiceBus and MassTransit, only leaner
RestBus - A service oriented .NET messaging library for RabbitMQ.
RawRabbit - A modern .NET Core library for RabbitMQ.
EasyNetQ - An easy to use .NET API for RabbitMQ
Warewolf ESB - An easy to use service bus and microservices platform. Easily build applications and services in a visual IDE.
Kafka Client - .Net implementation of the Apache Kafka Protocol that provides basic functionality through Producer/Consumer classes.
Foundatio - A common interface with in memory, redis and azure implementations.
Kafunk - F# Kafka client from Jet
Dynamic Data - Reactive Extensions (Rx) for collections
NCrontab - Class library for parsing & formatting crontab expressions as well as calculating occurrences of time based on a crontab schedule
QuartzNet - Quartz Enterprise Scheduler .NET
Hangfire - An easy way to perform fire-and-forget, delayed and recurring tasks inside .NET apps
Chroniton - A simple, fully integrable, and customizable library for running strongly typed jobs (tasks) on schedules.
Azure PowerShell - A set of PowerShell cmdlets for developers and administrators to develop, deploy and manage Microsoft Azure applications
Octokit.NET - A GitHub API client library for .NET
DropNet - Client Library for the Dropbox API
PlainElastic.Net - Plain .Net client for ElasticSearch
SolrNet - Solr client for .Net
SolrExpress) - A simple and lightweight query .NET library for Solr, in a controlled, buildable and fail fast way
Lucene.net - Lucene.Net is a port of the Lucene search engine library, written in C# and targeted at .NET runtime users
Json.NET - Popular high-performance JSON framework for .NET
ServiceStack.Text - JSON, JSV and CSV Text Serializers used in servicestack.net
Msgpack-Cli - MessagePack implementation for Common Language Infrastructure
Jil - Fast .NET JSON Serializer, built on Sigil (used by StackOverflow)
ProtoBuf - Generate C# code for protocol buffer serialization from a .proto specification.
F# Data - F# type providers for accessing XML, JSON, CSV and HTML files (based on sample documents) and for accessing WorldBank data
Bond - cross-platform framework for working with schematized data. It supports cross-language de/serialization and powerful generic mechanisms for efficiently manipulating data.
Wire - A high performance polymorphic serializer for the .NET framework.
FileHelpers - free and easy to use .NET library to import or export data from fixed length or delimited records in files, strings or streams.
FsPickler - A fast multi-format message serializer for .NET
Migrant - Fast and flexible serialization framework usable on undecorated classes.
Automatonymous - A state machine library for .Net - allows you to write fluent style state machines
Appccelerate - State Machine - A powerful state machine library - configured with a fluent api and synchrounous and asynchronous state transition support
Pretzel - A site generation tool (and then some) for .NET platforms
Sandra.Snow - Jekyll inspired static site generation for .NET
Wyam - A simple to use, highly modular, and extremely configurable static content generator
C# Coding Conventions - Official MSDN C# code conventions
Nustache - Open source library for logic-less templates
Stubble - Trimmed down {{mustache}} templates in .NET. Successor of Nustache.
DotLiquid - C# port of the Ruby Liquid templating language
Mustache Sharp - An extension of the mustache text template engine for .NET.
BDDfy - BDDfy is the simplest BDD framework EVER!
Bogus - A simple and sane fake data generator for C#. Based on and ported from the famed faker.js.
ExpressionToCode - Use plain C# syntax in assertions that include both the expression expression and subexpression values in the failure message.
FakeItEasy - The easy mocking library for .NET https://fakeiteasy.github.io
Fluent Assertions - A set of .NET extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style test
FluentAutomation - Simple Fluent API for UI Automation
FsCheck - Random Testing for .NET.
Fuchu - A unit-testing library for F# with tests-as-values which makes DSLs extemely easy to create.
Machine.Specifications - Machine.Specifications (MSpec) is a context/specification framework that removes language noise and simplifies tests.
Moq - The most popular and friendly mocking framework for .NET
NBuilder - Rapid generation of test objects
NSubstitute - A friendly substitute for .NET mocking frameworks
NUnit - A unit-testing framework for all .Net languages
Rhino Mocks - Dynamic Mocking Framework for .NET
Shouldly - Shouldly is an assertion framework which focuses on giving great error messages when the assertion fails while being simple and terse.
SpecFlow - Binding business requirements to .Net code
xBehave.net - A BDD/TDD framework based on xUnit.net and inspired by Gherkin. http://xbehave.github.io
xUnit - xUnit.net is a free, open source, community-focused unit testing tool for the .NET Framework
Canopy - Canopy is a free, open source F# web automation and testing framework
Open Live Writer - Blog writer which integrated with WordPress, Blogger, et. al. Open Live Writer makes it easy to write, preview, and post to your blog. For more information see http://openlivewriter.org .
CodeHub - CodeHub is the best way to browse and maintain your GitHub repositories on any iOS device!
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen and share it with a single press of a key. It also allows uploading images, text or other types of files to over 80 supported destinations you can choose from.
Myrtille - A native HTML4/5 Remote Desktop Protocol client, HTTP gateway written in C# for .NET
Opserver - Stack Exchange's Monitoring System
CatLight - Build status notifications for TFS/Jenkins/Travis/Appveyor. Cross-platform desktop app based on .Net Core and Electron. [Free][Proprietary]
Netling - A load tester client for easy web testing. It is extremely fast while using little CPU or memory.
Papercut - Papercut is an open source (.NET based) test email viewer that runs locally with a built-in SMTP server designed to receive and notify of test email messages.
Visual Studio Uninstaller - Uninstall and clean up all components of Visual Studio.
AnyStatus - A free and open source Visual Studio extension that adds monitoring capabilities and build status notifications to Visual Studio.
StockSharp - Trading and algorithmic trading open source platform (stock markets, forex, bitcoins and options). http://stocksharp.com
VsVIM - VIM in Visual Studio
Nuget Package Manager - NuGet is the package manager for the Microsoft development platform including .NET
SideWaffle - A collection of Item Templates for Visual Studio 2012/2013 that makes any web developer's life much easier
Resharper - Developer Productivity Tool for Visual Studio [$]
Refactoring Essentials - Open source extension for C# and VB.NET refactorings, including code best practice analyzers.
CodeContracts - Source code for the CodeContracts tools for .NET
Git Diff Margin - Displays live Git changes of the currently edited file on Visual Studio margin and scroll bar
Productivity Power Tools - A set of extensions to Visual Studio Professional (and above) which improves developer productivity.
VSColorOutput - Color highlighting for Build, Find and Debug output windows. Custom match patterns and colors can be added.
Developer Assistant - Developer Assistant for Visual Studio enables developers to find and reuse over 21 million code snippets and code sample projects from within the Visual Studio IDE.
FubuMVC - A front-controller style MVC framework for .NET
NancyFx - Lightweight, low-ceremony, framework for building HTTP based services on .Net and Mono
IISNode - Host NodeJS applications in IIS
Suave.IO - Framework/library/web server that makes you cry tears of joy after finishing your project ahead-of-time when you look at the beautiful code you've written in
EmbedIO - Web server built on Mono and cross-platform
XSP - Mono's ASP.NET hosting server. This module includes an Apache Module, a FastCGI module that can be hooked to other web servers as well as a standalone server used for testing (similar to Microsoft's Cassini)
SignalR - Library for ASP.NET developers that makes it incredibly simple to add real-time web functionality to your applications
SuperSocket - SuperSocket is a light weight extensible socket application framework
Websocket-Sharp - A C# implementation of the WebSocket protocol client and server
WebSocket4NET - WebSocket client for .NET 2.0+, Xamarin, Mono, Silverlight, Windows Phone, & WinRT
Crossertech - Provides a great set of tools for you to build real-time applications on the Microsoft.NET plattform and much more. [$]
WampSharp - A C# implementation of The Web Application Messaging Protocol - a protocol that provides messaging patterns of Remote Procedure Calls and Publish/Subscribe over WebSockets.
NetGain - A high performance websocket server library powering Stack Overflow.
Websockets.PCL - WebSockets.PCL is a portable class library, profile 259, C# WebSocket implementation.
awesome-LINQ - A curated collection of awesome LINQ libraries, tools, and more.
awesome-analyzers - A curated list of .NET Compiler Platform ("Roslyn") diagnostic analyzers and code fixes.
C# Algorithms, Data Structures - A list of algorithms and data structures implementations.
Awesome .NET Core - A collection of awesome .NET core libraries, tools, frameworks and software
ASP.NET Core Library and Framework Support - A list of what .NET libraries and frameworks are currently supported by ASP.NET Core and .NET Core (also at ANCLAFS.com).
Awesome .NET Performance - A curated list of awesome .NET Performance books, courses, trainings, conference talks, blogs and most inspiring open source contributors.
awesome-ddd - A curated list of Domain-Driven Design (DDD), Command Query Responsibility Segregation (CQRS), Event Sourcing, and Event Storming resources
Awesome Unity - A categorized community-driven collection of high-quality awesome Unity assets, projects, and resources.
Awesome Xamarin - A collection of interesting libraries/tools for Xamarin mobile projects.
.NET Compiler Platform ("Roslyn")
.NET Core
ASP.NET Core
EntityFramework
Orleans
Exceptionless
Glimpse
JSON.NET
Mobius: C# API for Apache Spark
MonoGame
Mono Project
MVVM Cross
MVVM Light Toolkit
ReactiveUI
Brian Lagunas & Brian Noyes
Prism
Cake
Cake
(and more)
Couchbase
Couchbase Lite for .NET
Dominick Baier & Brock Allen
IdentityManager
IdentityServer
Force.com
Force.com Toolkit for .NET
Jb Evain
Mono.Cecil
Microsoft
.NET Core
.NET Core CLR
.NET Core Framework
.NET Compiler Platform ("Roslyn")
.NET Micro Framework
ASP.NET 5
ASP.NET SignalR
Azure SDK for .NET
Kudu
MS Build
Open Live Writer
Open Office SDK
Reactive Extensions for .NET
WCF
WorldWideTelescope
Mono Project
System.Drawing
Orchard
Orchard CMS
Protobuild
Protobuild
Protobuild Manager
(and more)
Umbraco
Umbraco CMS
WiX Toolset
WiX Toolset
Xamarin
MailKit
MimeKit
Xamarin.Auth
Xamarin.Mobile
xUnit.net
xUnit.net
Expression Evaluator：动态计算表达式。官网（https://github.com/RupertAvery/csharpeval）
PDFsharp & MigraDoc：PDF操作。官网（http://www.pdfsharp.com/PDFsharp/）
DiffPlex：文件差异对比，类似Github版本控制。官网（http://diffplex.codeplex.com/）
DynamicJson：像Javascript一样操作Json。官网（http://dynamicjson.codeplex.com/）
Glimpse：网站性能监听，支持客户端，服务器端监听，非常好用，开发必备。官网（http://getglimpse.com/）
Sqlsugar:ORM框架，性能比Dapper，EF还快。官网（https://github.com/sunkaixuan/SqlSugar）
百小僧 提供
ORM
PetePoco 简单，快速易用的微型ORM工具 官网
NPoco 在PetaPoco上做的扩展 官网
应用
nopcommerce 电商平台 官网
James-yu 提供
SQLite：是一款轻型的数据库，是遵守ACID的关系型数据库管理系统，它包含在一个相对小的C库中 官网
神樹桜乃 提供
持续集成 jenkins：是一个广泛用于持续构建的可视化web工具,持续构建说得更直白点,就是各种项目的"自动化"编译、打包、分发部署
半生铭熙 提供
DiffPlex：文件差异对比，类似Github版本控制。官网（http://diffplex.codeplex.com/）链接已更新到Github
qust_青岛 提供
JqGridForMvc 快速开发必备利器，https://github.com/halower/JqGridForMvc
闪电风 提供
算法与数据结构（Algorithms and Data structures）
Algorithmia - Algorithm and data-structure library for .NET 3.5 and up. Algorithmia contains sophisticated algorithms and data-structures like graphs, priority queues, command, undo-redo and more.C# Algorithms - A C# plug-and-play class-library project of standard Data Structures and Algorithms. It contains 35+ Data Structures and 30+ Algorithms designed as Object-Oriented isolated components.
应用程序接口（API）
NancyFx - Lightweight, low-ceremony, framework for building HTTP based services on .Net and MonoASP.NET WebAPI - Framework that makes it easy to build HTTP services that reach a broad range of clients, including browsers and mobile devices
Breeze - Api framework enabling rich data access by using the OData 3 protocol. Client libraries available for Javascript and C#.
Mobius: C# API for Spark - Mobius adds C# language binding to Apache Spark, enabling the implementation of Spark driver code and data processing operations in C#.
ServiceStack - Thoughtfully architected, obscenely fast, thoroughly enjoyable web services for all
Nelibur - Nelibur is message based web service framework on the pure WCF. Nelibur simplifies creating high-performance and message based web services and you certainly have all the power of the WCF.
WebAPI Contrib - Collection of open source projects to help improve your work with ASP.NET Web API
应用程序框架（Application Frameworks）
ASP.NET Boilerplate - A starting point for new modern ASP.NET MVC web applications with best practices and most popular tools.Orleans - Orleans is a framework that provides a straight-forward approach to building distributed high-scale computing applications, without the need to learn and apply complex concurrency or other scaling patterns
CoreFX - The corefx repo contains the library implementation (called "CoreFX") for .NET Core. It includes System.Collections, System.IO, System.Xml and many other components. It builds and runs on Windows. You can 'watch' the repo to see Linux and Mac support being added over the next few months.
CSLA .NET - business layer development framework http://cslanet.com/
Mono - Mono open source ECMA CLI, C# and .NET implementation
Mono-Addins - Mono.Addins is a generic framework for creating extensible applications, and for creating add-ins which extend those applications
peasy - Peasy is a middle tier framework that offers an easy to use and flexible rules engine and was designed to address common challenges such as concurrency handling, transactional support, fault tolerance, threading, scalability, async and multiple client support, and easy testability, all without a huge learning curve!
Spring.Net - Spring.NET is an open source application framework that makes building enterprise .NET applications easier
DotNetty - DotNetty is a port of Netty, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.
模板引擎（Application Templates）
ASP.NET Core Starter Kit - backend: .NET Core, EF Core, C#; frontend: Babel, Webpack, React, CSS ModulesMVC.Template - ASP.NET Core MVC project starter template.
ProjectScaffold - A prototypical .NET solution recommended by the F# Foundation---includes file system setup, Paket for dependencies and FAKE for build/test automation. By default, build process also compiles documentation and generates NuGet packages.
Serene - Serenity is an ASP.NET MVC application platform designed to simplify and shorten development of data-centric business applications with a service based architecture. Serene is a starter template to build Serenity applications.
Side-Waffle - Large collection of useful templates for Web and Desktop development.
Template10 - Windows 10 templates with design patterns.
人工智能（Artificial Intelligence）
AIMLBot (Program#) - A small, fast, standards-compliant yet easily customizable implementation of an AIML (Artificial Intelligence Markup Language) based chatter bot in C#.SIML - Synthetic Intelligence Markup Language, a next generation Chatbot & Digital Assistant Language.
程序集与装配件（Assembly Manipulation）
dnSpy - dnSpy is a .NET assembly editor, decompiler, and debugger forked from ILSpy.Fody - Extensible tool for weaving .net assemblies
Mono.Cecil - Cecil is a library to generate and inspect programs and libraries in the ECMA CIL form.
资源（Assets）
Cassette - Manages .NET web application assets (scripts, css and templates)NodeAssets - Asset Manager for .net that has live css updates using SignalR and can optionally leverage NodeJS compilers
Bundle Transformer - Modular extension for Microsoft ASP.NET Web Optimization Framework. Its modules supports LESS, Sass, CoffeeScript, TypeScript, Mustache, Handlebars, Autoprefixer along with a bunch of different JS and CSS minifiers.
Bundler - Compile & Minify Less/Sass/Stylus/Css/JS/CoffeeScript/LiveScript files. Integrates with MVC and ServiceStack
SquishIt - Lets you easily bundle some css and javascript
验证与授权（Authentication and Authorization）
ASP.NET Identity - New membership system for ASP.NET applicationsDotNetOpenAuth - A C# implementation of the OpenID, OAuth and InfoCard protocols
Logibit Hawk - A F# Hawk authentication library
IdentityModel - Helper library for identity & access control in .NET 4.5 and MVC4/Web API.
IdentityServer - Extensible OAuth2 and OpenID Connect provider framework.
OAuth - A very lightweight library for generating OAuth 1.0a signatures written in C#
Stuntman - Stuntman is a library for impersonating users during development leveraging .NET Claims Identity.
Books
.NET Core in Action - teaches how to write applications and libraries with .NET Core. [$]CLR via C# - Dig deep and master the intricacies of the common language runtime, C#, and .NET development. [$]
Functional Programming in C# - teaches how to best leverage the functional features of the C# language. [$]
Microservices in .NET Core - shows you how to build maintainable, secure and operations-friendly microservices using Nancy and .NET Core. [$]
Build Automation
Psake - .NET-based build automation tool written in PowerShellFAKE - F# Make, a cross platform build automation system
Invoke-Build - PowerShell build and test automation tool inspired by Psake.
MSBuild - The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio
Cake - Cake (C# Make) is a cross platform build automation system with a C# DSL.
Nake - Magic script-based C# task runner
Caching
CacheCow - An ASP.NET Web API HTTP caching implementation both on client and serverAkavache - An asynchronous, persistent key-value store
CacheManager - A common interface and abstraction layer for caching.
CacheAdapter - Another common cache abstraction layer for caching with enhanced cache API usage.
Foundatio - A common interface with in memory, redis and hybrid implementations.
CLI
Command Line Parser - The Command Line Parser Library offers to CLR applications a clean and concise API for manipulating command line arguments and related tasksFluent Command Line Parser - A simple, strongly typed .NET C# command line parser library using a fluent easy to use interface
Power Args - PowerArgs converts command line arguments into .NET objects that are easy to program against. It also provides a ton of optional capabilities such as argument validation, auto generated usage, tab completion, and plenty of extensibility
Argu - Declarative CLI argument & XML configuration parser for F# applications.
Appccelerate - Command Line Parser - A command line parser with fluent definition syntax, different argument types, required and optional arguments, value restrictions, aliases, type conversion and semi-automatic usage help message composition
Colorful.Console - Colorful console output.
CLR
CoreCLR - The coreclr repo contains the complete runtime implementation (called "CoreCLR") for .NET Core. It includes RyuJIT, the .NET GC, native interop and many other components. It builds and runs on Windows. You can 'watch' the repo to see Linux and Mac support being added over the next few months.CMS
Composite C1 - A web CMS that focus on UX and adaptabilitymojoPortal - MojoPortal is an extensible, cross database, mobile friendly, web content management system (CMS) and web application framework written in C# ASP.NET
N2CMS - Open source, lightweight, code-first CMS able to seamlessly integrate into any MVC project.
Orchard - Free, open source, community-focused project aimed at delivering applications and reusable components on the ASP.NET platform
Piranha CMS - Piranha is the fun, fast and lightweight .NET framework for developing cms-based web applications with an extra bite. It's built on ASP.NET MVC and Web Pages and is fully compatible with both Visual Studio and WebMatrix. http://piranhacms.org
Umbraco - Umbraco is a free open source Content Management System built on the ASP.NET platform
BetterCMS - Open Source .NET Intuitive User Interface for Developer and Publisher
DotNetNuke - DNN Platform is our free, open source web CMS and the foundation of every professional DNN solution. Over 750,000 organizations worldwide have built websites powered by the DNN Platform.
Code Analysis and Metrics
App.Metrics - App Metrics is an open-source and cross-platform .NET library used to record and report metrics within an application and reports it's health. See the docs for me details.CodeMaid - Visual studio extension to cleanup, dig through and simplify C#, C++, F#, VB, PHP, JSON, XAML, XML, ASP, HTML, CSS, LESS, SCSS, JavaScript and TypeScript coding.
StyleCop - StyleCop analyzes C# source code to enforce a set of style and consistency rules
Gendarme - Extensible rule-based tool to find problems in .NET applications and libraries
Metrics-Net - Capturing CLR and application-level metrics. So you know what's going on.
AspNet.Metrics - Capturing CLR, application-level web request metrics. Middleware and extensions using Metrics-Net
BenchmarkDotNet - Powerful .NET library for benchmarking.
Codinion - Enhanced syntax highlighting for C# and some other "Visual" features.
Code Snippets
.NET Fiddle - Write, compile and run C# code in the browser. The C# equivalent of JSFiddle.Gistlyn - Create, run and share your executable C# Github Gists.
TryRoslyn - Run C# code using different branches and versions of Roslyn.
Compilers, Transpilers and Languages
Bridge.NET - Open Source C# to JavaScript Compiler http://bridge.net/ClojureCLR - A port of Clojure to the CLR, part of the Clojure project
F# - The F# compiler, core library and tools - a functional programming language for safer, faster, better code writing.
FunScript - F# to JavaScript compiler with JQuery etc. mappings through a TypeScript type provider.
IronScheme - R6RS Scheme compiler, runtime and many standard libraries
JSIL - CIL to Javascript Compiler http://jsil.org/
Mono-basic - Visual Basic Compiler and Runtime
Nemerle - Nemerle is a high-level statically-typed programming language for the .NET platform. It offers functional, object-oriented and imperative features. It has a simple C#-like syntax and a powerful meta-programming system. http://nemerle.org/About
Netjs - .NET to TypeScript and JavaScript compiler. Portable Class Libraries work great for this. You can even pass EXEs.
P - P is a language for asynchronous event-driven programming.
Roslyn - The .NET Compiler Platform ("Roslyn") provides open-source C# and Visual Basic compilers with rich code analysis APIs. It enables building code analysis tools with the same APIs that are used by Visual Studio.
VisualFSharp - The Visual F# compiler and tools
Fable - F# to JavaScript Compiler
LinqOptimizer - An automatic query optimizer-compiler for Sequential and Parallel LINQ
Roslyn-linq-rewrite - Compiles C# code by first rewriting the syntax trees of LINQ expressions using plain procedural code, minimizing allocations and dynamic dispatch.
Compression
SharpCompress - SharpCompress is a compression library for .NET/Mono/Silverlight/WP7 that can unrar, un7zip, unzip, untar unbzip2 and ungzip with forward-only reading and file random access APIs. Write support for zip/tar/bzip2/gzip are implementedDotNetZip.Semverd - An open-source project that delivers a .NET library for handling ZIP files, and some associated tools. (fork of Unmaintained DotNetZip)
SharpZipLib - a Zip, GZip, Tar and BZip2 library written entirely in C# for the .NET platform
Snappy for Windows - Snappy compression library for .NET baked on PInvoke
Snappy.Sharp - An implementation of Google's Snappy compression algorithm in C#.
Continuous Integration
TeamCity - Ready to work, extensible and developer-friendly build server — out of the box [$]CruiseControl.NET - an Automated Continuous Integration server, implemented using the .NET Framework
MyGet - Continuous Integration and Deployment, Hosted Package Repository for NuGet, NPM, Bower and VSIX. [Free for OSS] [$]
AppVeyor - .NET Continuous Integration and Deployment as a service. [$] [Free for OSS]
Cryptography
BouncyCastle - Together with the .Net System.Security.Cryptography, the reference implementation for cryptographic algorithms on the CLR.HashLib - HashLib is a collection of nearly all hash algorithms you've ever seen, it supports almost everything and is very easy to use
libsodium-net - libsodium for .NET - A secure cryptographic library
Pkcs11Interop - Managed .NET wrapper for unmanaged PKCS#11 libraries that provide access to the cryptographic hardware
StreamCryptor - Stream encryption & decryption with libsodium and protobuf
Database
BrightstarDb - BrightstarDB is a native .NET RDF triple storeEvent Store - The open-source, functional database with Complex Event Processing in JavaScript. https://geteventstore.com
LiteDB - A .NET NoSQL Document Store in a single data file - http://www.litedb.org
RavenDB - A linq enabled document database for .NET
Marten - Postgresql as a Document Database and Event Store for .Net Applications
Realm Xamarin - A fast, easy-to-use alternative to SQLite & ORMs - https://realm.io/docs/xamarin/latest/
Streamstone - Event store for Azure Table Storage
Ignite - Distributed in-memory platform: document database with SQL and LINQ support; distributed computations; distributed services and events.
Yessql - A .NET document database working on any RDBMS
Database Drivers
MySQL Connector - Connector/Net is a fully-managed ADO.NET driver for MySQLNpgsql - .Net data provider for Postgresql
MongoDB - Official MongoDB C# Driver
RethinkDb.Driver - A RethinkDB database driver in C# striving for 100% ReQL API compatibility and completeness.
ServiceStack Redis - .NET's leading C# Redis Client
StackExchange Redis - General purpose redis client from StackExchange
Cassandra - DataStax .NET Driver for Apache Cassandra
Couchbase - Official couchbase .NET client library, based on the Enyim memcached client
Firebird.NET - The .NET Data provider is written in C# and provides a high-performance, native implementation of the Firebird API
Datetime
NodaTime - Noda Time is an alternative date and time API for .NET. It helps you to think about your data more clearly, and express operations on that data more precisely. http://nodatime.org/DateTimeExtensions - Common Date Time operations on the form of extensions to System.DateTime, including holidays and working days calculations on several culture locales.
Exceptionless.DateTimeExtensions - DateTimeRange, Business Day and various DateTime, DateTimeOffset, TimeSpan extension methods.
Decompilation
ILSpy - ILSpy is the open-source .NET assembly browser and decompilerJustDecompile Engine - The decompilation engine of JustDecompile
Deployment
Unfold - Powershell-based deployment solution for .net web applicationsDbUp - .NET library that helps you to deploy changes to SQL Server databases. It tracks which SQL scripts have been run already, and runs the change scripts that are needed to get your database up to date
Octo Pack - Used to build nuget packages of your application for deployment using tools such as Octopus Deploy
DirectX
SlimDX - DirectX framework wrapper for .NET applicationsSharpDX - SharpDX is an open-source project delivering the full DirectX API for .Net on all Windows platforms, allowing the development of high performance game, 2D and 3D graphics rendering as well as realtime sound application.
Distributed Computing
Orleans - Orleans is a framework that provides a straight-forward approach to building distributed high-scale computing applications, without the need to learn and apply complex concurrency or other scaling patterns. It was created by Microsoft Research.Orleankka - Orleankka is a functional API for Microsoft Orleans framework. It is highly suitable for scenarios where having composable, uniform communication interface is preferable, such as: CQRS, event-sourcing, re-routing, FSM, etc. Additional API avaiable for F# called Orleankka.FSharp.
Akka.net - Akka.NET is a port of the popular Java/Scala framework Akka to .NET. This is a community driven port and is not affiliated with Typesafe who makes the original Java/Scala version.
Zebus - Zebus is a lightweight, higlhy versatile, peer to peer service bus, built with CQRS principles in mind. It allows applications to communicate with each other in a fast and easy manner. Most of the complexity is hidden in the library and you can focus on writing code that matters to you, not debugging messaging code. A very fundamental base for any distributed application.
FsShelter - F# library for authoring Apache Storm components and topologies. Offering high-level abstractions for distributed and fault-tolerant event stream processing.
Foundatio - Pluggable foundation blocks for building distributed apps.
MBrace - Integrated Data Scripting for the Cloud
DLR
cmd - C# library to run external programs in a simpler way. Demonstration of "dynamic" features of C#.Documentation
Sandcastle - Sandcastle Help File Builder similar to NDocSharpDox - A c# documentation tool
SourceBrowser - Source browser website generator that powers https://referencesource.microsoft.com and http://source.roslyn.io
Swashbuckle - Seamlessly adds a swagger to WebApi projects!
F# Formatting - Tools for documenting F# and C# projects from F# Script files, Markdown documents and inline XML or Markdown comments
DocFX - Tools for building and publishing API documentation for .NET projects
DocNet - Your friendly static documentation generator, using markdown files to build the content.
Exceptions
Exceptionless - Exceptionless .NET ClientE-Commerce and Payments
Paypal Merchant SDK - Official Paypal Merchant SDK for .NETNopCommerce - nopCommerce. Free open-source ecommerce shopping cart (ASP.NET MVC)
ServiceStack.Stripe - Typed .NET clients for stripe.com REST APIs
SmartStoreNET - Free ASP.NET MVC Ecommerce Shopping Cart Solution https://www.smartstore.com/en/net
Stripe.Net - Stripe.net is a full service .net api for https://stripe.com/
BeYourMarket - BeYourMarket is a peer-to-peer marketplace framework http://beyourmarket.com
Virto Commerce - Virto Commerce is the second generation release and is the only enterprise level e-commerce product fully available under Open Source license. Virto Commerce is based on .NET 4.5 with extensive use of MVC, IoC, EF, Azure, Angular JS and many other cutting edge technologies. It can be deployed in Microsoft Cloud (Azure), Amazon Web Services (AWS) and on-premise. https://virtocommerce.com
Environment Management
Dotnet CLI - The cross-platform .NET Core command line toolchain utility.ETL
Reactive ETL - Reactive ETL is a rewrite of Rhino ETL using the reactive extensions for .NETFunctional programming
language-ext - This library uses and abuses the features of C# 6+ to provide a functional 'Base class library', that, if you squint, can look like extensions to the language itself. It also includes an 'Erlang like' process system (actors) that can optionally persist messages and state to Redis (note you can use it without Redis for in-app messaging). The process system additionally supports Rx streams of messages and state allowing for a complete system of reactive events and message dispatch.Game
MonoGame - One framework for creating powerful cross-platform gamesCocosSharp - CocosSharp is a C# implementation of the Cocos2D and Cocos3D APIs that runs on any platform where MonoGame runs
Duality - Duality is a 2D game development framework. Focused on modularity, comes with a visual editor.
Xenko - Xenko is a 2D/3D cross-platform game engine featuring a scene editor, particles, physically based rendering (PBR), scripting, and much more
Wave Engine - Wave engine is a free c# component-based modern game engine which allows you to create cross-platform games supporting kinect, oculusrift, vuforia, cardboard, leapmotion and much more. [Free][Proprietary]
UrhoSharp - UrhoSharp is a C# implementation of the Urho3D game engine that runs on iOS, Mac, Windows, Android and Linux systems
Nez - Nez is a free 2D focused framework that works with MonoGame and FNA
GIS
NetTopologySuite A .NET GIS solution that is fast and reliable for the .NET platformSharpMap An easy-to-use mapping library for use in web and desktop applications
OsmSharp - C# library to work with OpenStreetMap (OSM) data. Provides reading, writing and route-planning for OSM data.
Git Tools
Bonobo Git Server - Bonobo Git Server for Windows is a web application you can install on your IIS and easily manage and connect to your git repositories. https://bonobogitserver.com/GitExtensions - GitExtensions is a shell extension, a Visual Studio 2008/2010/2012/2013 plugin and a standalone Git repository tool. http://gitextensions.github.io/
GitLink - let's users step through their code hosted on GitHub or BitBucket
GitVersion - Generate a Semantic Version Number based on the state of your Git Repository
LibGit2Sharp - LibGit2Sharp brings all the might and speed of libgit2, a native Git implementation, to the managed world of .Net and Mono.
NGit - NGit is a port of JGit to C#
posh-git - A PowerShell environment for Git
Git Credential Manager for Windows - Helps solving issues of credentials, made by Microsoft
Graphics
LibTessDotNet - .NET port of the famous GLU Tessellator, triangulates polygonsOxyplot - OxyPlot is a cross-platform plotting library for .NET
OpenTK - The Open Toolkit is an advanced, low-level C# library that wraps OpenGL, OpenCL and OpenAL
NGraphics - NGraphics is a cross-platform library for rendering vector graphics on .NET
Live-Charts - An Animated, MVVM oriented and modern charting library
GUI
MahApps.Metro - Toolkit for creating Metro styled WPF appsCallisto - 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.
ObjectListView - ObjectListView is a C# wrapper around a .NET ListView. It makes the ListView much easier to use and teaches it some new tricks
DockPanelSuite - The Visual Studio inspired docking library for .NET WinForms
AvalonEdit - The WPF-based text editor component used in SharpDevelop
XWT - A cross-platform UI toolkit for creating desktop applications with .NET and Mono
Gtk# - Gtk# is a Mono/.NET binding to the cross platform Gtk+ GUI toolkit and the foundation of most GUI apps built with Mono
MaterialDesignInXamlToolkit - Toolkit for creating Material styled WPF apps
Eto.Forms - Cross platform GUI framework for desktop and mobile applications in .NET and Mono
Dragablz - Dragable, tearable WPF tab control (similar to Chrome) which supports layouts and is full themeable, including themese compatible with MahApps and Material Design.
Fluent.Ribbon - Fluent Ribbon Control Suite is a library that implements an Office- and Windows 8-like Ribbon for WPF.
Office Ribbon - A library that implements MS Office Ribbon for WinForms.
Perspex - A multi-platform .NET UI framework.
MaterialSkin - Theming .NET WinForms, C# or VB.Net, to Google's Material Design Principles.
Xamarin.Forms - Build native UIs for iOS, Android and Windows from a single, shared C# codebase.
SciterSharp - Create .NET cross-platform desktop apps using not just HTML, but all features of Sciter engine: CSS3, SVG, scripting, AJAX, <video>... Sciter is free for commercial use
Empty Keys UI - Multi-platform and multi-engine XAML based user interface library [Free][Proprietary]
UWP Community Toolkit - The UWP Community Toolkit is a collection of helper functions, custom controls, and app services. It simplifies and demonstrates common developer tasks building UWP apps for Windows 10.
ScintillaNET - Windows Forms control for the Scintilla text editor component (Scintilla is used by Notepad++)
FastColoredTextBox - Fast Colored TextBox is text editor component for .NET. Allows you to create custom text editor with syntax highlighting. It works well with small, medium, large and very-very large files.
HTML and CSS
AngleSharp - Complete HTML5 DOM and CSS3 OM constructionCsQuery - HTML5 parser with jQuery style DOM interaction
dotless - .NET Port of the ruby Less CSS lib http://www.dotlesscss.org
ExCSS - CSS3 parser Library for C#
FluentBootstrap - Makes the Bootstrap CSS framework easier to use from ASP.NET MVC or WebPages.
HtmlAgilityPack - an agile HTML parser that builds a read/write DOM and supports plain XPATH or XSLT
HTTP
Http.fs - A functional HTTP client for[F#].
RestSharp - Simple REST and HTTP API Client for .NET
Flurl.Http - Fluent, portable, testable REST/HTTP client library
EasyHttp - Http Library for C#
Refit - The automatic type-safe REST library for Xamarin and .NET
RestEase - Easy-to-use typesafe REST API client library, which is simple and customisable. Heavily inspired by Refit
HttpClientGoodies - utilities for working with
HttpClient
IDE
SharpDevelop - A free IDE for .NET programming languagesMonoDevelop - MonoDevelop is a cross platform IDE mostly aimed at Mono/.NET developers
Visual Studio Express - The free lightweight version of Visual Studio for .NET programming.
Visual Studio Community - A full-Featured IDE - Free
Waf DotNetPad - A simple and fast code editor that makes fun program with C# or Visual Basic.
Visual Studio Code - Excellent free editor from Microsoft, based on GitHub Atom.
Ionide - An Atom Editor and Visual Studio Code package suite for cross platform F# development.
Rider - A cross-platform C# IDE based on the IntelliJ platform and ReSharper
Image Processing
ImageResizer - Add commands to image URLs to get altered versions in milliseconds. Resizing, editing etc of images in real-time.ImageProcessor - Open-source .NET library to manipulate images on-the-fly.
DynamicImage - High-performance open-source image manipulation library for ASP.NET.
MetadataExtractor - Extracts Exif, IPTC, XMP, ICC and other metadata from image files.
Emgu CV - Cross-platform .NET wrapper for the OpenCV library.
DotImaging - Minimalistic .NET imaging portable platform
Magick.NET - .NET wrapper for the ImageMagick library.
Install tools
Wix Toolset - The most powerful set of tools available to create your Windows installation experienceSquirrel - Squirrel is both a set of tools and a library, to completely manage both installation and updating your Desktop Windows application.
Chocolatey - like yum or apt-get, but for Windows.
Internationalization
i18n - Smart internationalization for ASP.NET MVCMessageFormat.NET - ICU MessageFormat implementation in .NET lets you write contextual UI messages (PCL library)
Interoperability
CppSharp - Tools to surface C++ APIs to C#Sharpen - Sharpen is an Eclipse plugin created by db4o that allows you to convert your Java project into C#
CXXI - C++ interop framework
IoC
Castle Windsor - Castle Windsor is best of breed, mature Inversion of Control container available for .NET and SilverlightUnity - Lightweight extensible dependency injection container with support for constructor, property, and method call injection
Autofac - An addictive .NET IoC container
Ninject - The ninja of .net dependency injectors
StructureMap - The original IoC/DI Container for .Net
Spring.Net - Spring.NET is an open source application framework that makes building enterprise .NET applications easier
LightInject - A ultra lightweight IoC container
TinyIoC - Single-file, easy and cross-platform IoC container
Simple Injector - Simple Injector is an easy-to-use Dependency Injection (DI) library for .NET 4+ that supports Silverlight 4+, Windows Phone 8, Windows 8 including Universal apps and Mono.
Microsoft.Extensions.DependencyInjection - The default IoC container for ASP.NET Core applications.
Scrutor - Assembly scanning extensions for Microsoft.Extensions.DependencyInjection.
JavaScript Engines
ClearScript - A library that makes it easy to add scripting to your .NET applications. It currently supports JavaScript (via V8 and JScript) and VBScript.Edge.js - Run .NET and Node.js code in-process on Windows, MacOS, and Linux
Jint - JavaScript interpreter for .NET which provides full ECMA 5.1 compliance and can run on any .NET platform.
Jurassic - A implementation of the ECMAScript language and runtime. It aims to provide the best performing and most standards-compliant implementation of JavaScript for .NET.
Logging
Essential Diagnostics - Extends the inbuilt features of System.Diagnostics namespace to provide flexible loggingNLog - NLog - Advanced .NET and Silverlight Logging
Logazmic - Open source nlog viewer for Windows
ELMAH - Official ELMAH site
Elmah MVC - Elmah for MVC
Logary - Logary is a high performance, multi-target logging, metric, tracing and health-check library for mono and .Net. .Net's answer to DropWizard. Supports many targets, built for micro-services.
Log4Net - The Apache log4net library is a tool to help the programmer output log statements to a variety of output targets
Serilog - A no-nonsense logging library for the NoSQL era. Combines the best of traditional and structured diagnostic logging in an easy-to-use package.
StackExchange.Exceptional - Error handler used for the Stack Exchange network
Semantic Logging Application Block (SLAB) - Extends the inbuilt features of System.Diagnostics.Tracing namespace (EventSource class) to log to several sinks including Azure Tables, Databases, files (JSON, XML, text). Supports in-process and out-of-process logging through ETW, and Rx for real-time filtering/aggregating of events.
Foundatio - A fluent logging api that can be used to log messages throughout your application.
Exceptionless - Exceptionless .NET Client
Loupe - Centralized .NET logging and monitoring. [Proprietary] [Free Tier]
Machine Learning and Data Science
Infer.NET - A framework for running Bayesian inference in graphical models. It can also be used for probabilistic programming. [Proprietary] [Free] [Research]Accord.NET - Machine learning framework combined with audio and image processing libraries (computer vision, computer audition, signal processing and statistics).
Accord.NET Extensions - Advanced image processing and computer vision algorithms made as fluent extensions.
AForge.NET - Framework for developers and researchers in the fields of Computer Vision and Artificial Intelligence (image processing, neural networks, genetic algorithms, machine learning, robotics).
Deedle - Data frame and (time) series library for exploratory data manipulation with C# and F# support
FsLab - A collection of data science and machine learning libraries for F# and .NET
numl - Designed to include the most popular supervised and unsupervised learning algorithms while minimizing the friction involved with creating the predictive models.
R Provider - Type provider that exposes R packages and functions in a type-safe way to F# callers
F# Data - F# type providers for accessing XML, JSON, CSV and HTML files (based on sample documents) and for accessing WorldBank data
Markdown Processors
MarkdownSharp - Open source C# implementation of Markdown processor, as featured on Stack Overflow.F# Formatting - Tools for documenting F# and C# projects. The library contains extensible Markdown parser as a core component.
CommonMark.NET - Implementation of CommonMark specification in C# for converting Markdown documents to HTML. Optimized for maximum performance and portability.
markdig - A fast, powerful, CommonMark compliant, extensible Markdown processor for .NET.
MailKit - A complete cross-platform mail stack including IMAP, POP3, SMTP, authentication and more. Built on top of MimeKit.
MimeKit - A cross-platform .NET MIME creation and parser library with support for S/MIME, PGP, TNEF and Unix mbox spools.
PreMailer.Net - C# library that moves your stylesheets to inline style attributes, for maximum compatibility with E-mail clients.
Mathematics
MathNet - Math.NET is an opensource initiative to build and maintain toolkits covering fundamental mathematics, targetting advanced but also every day needs of .Net developersMicrosoft Automatic Graph Layout - A set of tools for graph layout and viewing.
UnitConversion - Expansible Unit Conversion Library for .Net Core and .Net Framework
Media
TagLib# - TagLib# (aka taglib-sharp) is a library for reading and writingmetadata in media files, including video, audio, and photo formats
NAudio - Playback, decode and encode audio in a variety of file formats such as MP3, MP4, WAV, AIFF, Speex, etc.
Metrics
C# StatsD Client - C# client for Etsy's StatsDFoundatio - A common interface with in memory, redis, StatsD, and Metrics.NET implementations.
Micro Framework
.NET Micro Framework Interpreter - Microsoft® .NET Micro Framework (NETMF) for developing embedded applications on small devices using Visual StudioMinification
Microsoft Ajax Minifier - Contains JS and CSS minifiers which have a highest performance, because its have been specifically designed for .NET. Optionally produce Source Maps for JS code.Web Markup Minifier - .NET library that contains a set of markup minifiers. The objective of this project is to improve the performance of web applications by reducing the size of HTML, XHTML and XML code.
Misc
CSharp Pad - A web based C# REPL with awesome code completion.AzureCrawler - Take HTML Snapshots for your Angular, Ember, Durandal or any JavaScript applications
BitSharp - C# Bitcoin Node
CSScript - CS-Script is a CLR based scripting system which usesC# as a programming language. CS-Script currently targets Microsoft implementation of CLR (.NET 2.0/3.0/3.5/4.0/4.5) with full support on Mono. Comes with many additional features, such as script hosting.
CsvHelper - Library to help reading and writing CSV files https://github.com/JoshClose/CsvHelper
FlatMapper - A library to import and export data from and to plain text files in a Linq compatible way.
FluentValidation - A small validation library for .NET that uses a fluent interface and lambda expressions for building validation rules.
Humanizer - Humanizer meets all your .NET needs for manipulating and displaying strings, enums, dates, times, timespans, numbers and quantities
LINQPad - a C#/VB/F# scratchpad that instantly executes any expression, statement block or program with rich output formatting and a wealth of features. Also lets you interactively query databases in LINQ. [$]
Polly - Express transient exception handling policies such as Retry, Retry Forever, Wait andRetry or Circuit Breaker in a fluent manner. (.NET 3.5 / 4.0 / 4.5 / PCL / Xamarin)
Rant - The Rant Procedural Text Generation DSL http://berkin.me/rant/
ScriptCS - Write C# apps with a text editor, nuget and the power of Roslyn!
Shielded - Software Transactional Memory (STM) implementation for .NET
MSBuild ILMerge task - MSBuild ILMerge task is a NuGet package allows you to use the famous ILMerge utility in automated builds and/or Visual Studio projects.
ReactJS.NET - ReactJS.NET is a library that makes it easier to use Babel along with Facebook's React and JSX from C#.
Aeron.NET - Efficient reliable UDP unicast, UDP multicast, and IPC message transport - .NET port of Aeron
TypeShape - TypeShape is a small, extensible F# library for practical generic programming
Streams - A lightweight F#/C# library for efficient functional-style pipelines on streams of data.
MediatR - Simple, unambitious mediator implementation in .NET
Warden - Define "health checks" for your applications, resources and infrastructure. Keep your Warden on the watch
ByteSize - ByteSize is a utility class that makes byte size representation in code easier by removing ambiguity of the value being represented. ByteSize is to bytes what System.TimeSpan is to time.
Jot - a library for persisting and restoring application state (a better alternative to .settings files).
MVVM
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 sacrifice code quality or testability.MVVM Light Toolkit - The main purpose of the toolkit is to accelerate the creation and development of MVVM applications in WPF, Silverlight, Windows Store (RT) and for Windows Phone
Catel - Catel is an application development platform with the focus on MVVM (WPF, Silverlight, Windows Phone and WinRT) and MVC (ASP.NET MVC). The core of Catel contains an IoC container, models, validation, memento, message mediator, argument checking, etc.
UpdateControls - Update Controls does not require that you implement INotifyPropertyChanged or declare a DependencyProperty. It connects controls directly to CLR properties. This makes it perfect for the Model/View/ViewModel pattern.
ReactiveUI - An MVVM framework for .NET that integrates the Reactive Extensions (Rx) framework, enabling developers to build elegant, testable applications using WPF, Windows Store Apps, WP8 or Xamarin.
Okra App Framework - An app centric MVVM framework for Windows 8.1 built with dependency injection in mind, including a full set of Visual Studio MVVM templates.
Prism - A cross-platform desktop and mobile MVVM development framework.
WPF Application Framework (WAF) - A lightweight Framework that helps you to create well structured WPF Applications. It supports you in applying a Layered Architecture and the Model-View-ViewModel pattern.
MVVMCross - Cross-platform mvvm mobile development framework for WPF, Silverlight for WP7 and WP8, Mono for Android, MonoTouch for iOS, Windows Universal projects (WPA8.1 and Windows 8.1 Store apps). Makes extensive use of Portable Class Libraries (PCL) to provide maintainable cross platform C# native applications.
Stylet - Minimal MVVM framework inspired by Caliburn Micro, with good documentation, high test coverage, and its own IoC container
Gemini - IDE framework similar in concept to the Visual Studio Shell. Built on WPF, AvalonDock, and Caliburn Micro.
Object to object mapping
AutoMapper - A convention-based object-object mapper in .NET. http://automapper.orgTinyMapper - A tiny and quick object mapper for .Net.
ExpressMapper - A lightweight, lighting fast .Net mapper to map one type of object(s) to another in automated and easy way. ExpressMapper relies completely on the expression trees.
Office
ExcelDna - ExcelDna makes it easier to create and deploy Excel Add-Ins using C#, F# or VB .NETClosedXML - ClosedXML makes it easier for developers to create Excel 2007/2010 files
NPOI - This project is the .NET version of POI Java project at http://poi.apache.org/.
EPPlus - EPPlus is a .net library that reads and writes Excel 2007/2010 files using the Open Office Xml format (xlsx).
Open XML SDK - The Open XML SDK provides open-source libraries for working with Open XML Documents (DOCX, XLSX, and PPTX).
ORM
Entity Framework - Object-relational mapper that enables .NET developers to work with relational data using domain-specific objectsBL Toolkit - Business Logic Toolkit for .NET
Dapper - A simple object mapper for .NET by StackExchange
Dapper Extensions - Small library that complements Dapper by adding basic CRUD operations (Get, Insert, Update, Delete) for your POCOs
Dapper.FastCRUD - The fastest micro-orm extension for Dapper
NHibernate - NHibernate Object Relational Mapper
Fluent NHibernate - Fluent, XML-less, compile safe, automated, convention-based mappings for NHibernate.
FluentMigrator - Fluent Migrations framework for .net
ServiceStack.OrmLite - Light, simple and fast convention-based POCO ORM [Free for OSS] [$]
Massive - A small, happy, data access tool that will love you forever.
LINQ to DB - The fastest LINQ database access library offering a simple, light, fast, and type-safe layer between your POCO objects and your database.
MicroLite ORM MicroLite ORM is a micro Object Relational Mapper for the .NET framework. It is designed to be easy to use, extensible and testable.
PetaPoco - A tiny ORM-ish thing for your POCOs
AsyncPoco - A long-"awaited" fully asynchronous PetaPoco fork
NPoco - Simple microORM that maps the results of a query onto a POCO object. Based on Schotime's branch of PetaPoco
Limebean - Hybrid ORM which uses SQL fragments and doesn't require Model Classes.
LLBLGen Pro - Entity Modeling solution for Entity Framework, NHibernate, Linq to SQL and its own ORM framework: LLBLGen Pro Runtime Framework. [$][Free Lite version]
Insight.Database - Insight.Database is a fast, lightweight, micro-orm for .NET
DbExtensions - Data-access framework with a strong focus on query composition, granularity and code aesthetics.
Package Management
NuGet - THE .NET Package ManagerMyGet - Hosted Package Repository for NuGet, NPM, Bower and VSIX. Also provides CI as-a-Service. [Free for OSS] [$]
Paket - A package dependency manager for .NET with support for NuGet packages and GitHub repositories. http://fsprojects.github.io/Paket/
Profiler
MiniProfiler - A simple but effective mini-profiler for ASP.NET websitesGlimpse - The open source diagnostics platform for the web
Protocols
SSH.NET - A Secure Shell (SSH) library for .NET, optimized for parallelism. Provides SSH commands, SFTP/SCP uploads and downloads, and SOCKS4/SOCKS5/HTTP proxies.Push Notifications
PushSharp - A server-side library for sending Push Notifications to iOS, OSX, Android, Chrome, Windows Phone, Windows 8, Blackberry, and Amazon devices.Queue
NServiceBus - The most popular service bus for .NETHangfire - Incredibly easy way to perform fire-and-forget, delayed and recurring tasks inside ASP.NET applications
RabbitMQ.NET - Implementation of an AMQP client library for C#, and a binding exposing AMQP services via WCF
NetMQ - NetMQ is 100% native C# port of ZeroMQ
MassTransit - MassTransit is lean service bus implementation for building loosely coupled applications using the .NET Framework.
Rebus - Rebus is a lean service bus implementation for .NET, similar in nature to NServiceBus and MassTransit, only leaner
RestBus - A service oriented .NET messaging library for RabbitMQ.
RawRabbit - A modern .NET Core library for RabbitMQ.
EasyNetQ - An easy to use .NET API for RabbitMQ
Warewolf ESB - An easy to use service bus and microservices platform. Easily build applications and services in a visual IDE.
Kafka Client - .Net implementation of the Apache Kafka Protocol that provides basic functionality through Producer/Consumer classes.
Foundatio - A common interface with in memory, redis and azure implementations.
Kafunk - F# Kafka client from Jet
Reactive Programming
Rx.NET - The Reactive Extensions (Rx) is a library for composing asynchronous and event-based programs using observable sequences and LINQ-style query operatorsDynamic Data - Reactive Extensions (Rx) for collections
Scheduling
FluentScheduler - Task scheduler with fluent interface that runs automated jobs from your applicationNCrontab - Class library for parsing & formatting crontab expressions as well as calculating occurrences of time based on a crontab schedule
QuartzNet - Quartz Enterprise Scheduler .NET
Hangfire - An easy way to perform fire-and-forget, delayed and recurring tasks inside .NET apps
Chroniton - A simple, fully integrable, and customizable library for running strongly typed jobs (tasks) on schedules.
SDK and API Clients
AWS SDK - The AWS SDK for .NET enables .NET developers to easily work with Amazon Web ServicesAzure PowerShell - A set of PowerShell cmdlets for developers and administrators to develop, deploy and manage Microsoft Azure applications
Octokit.NET - A GitHub API client library for .NET
DropNet - Client Library for the Dropbox API
Search
Elasticsearch .NET - Elasticsearch.Net & NESTPlainElastic.Net - Plain .Net client for ElasticSearch
SolrNet - Solr client for .Net
SolrExpress) - A simple and lightweight query .NET library for Solr, in a controlled, buildable and fail fast way
Lucene.net - Lucene.Net is a port of the Lucene search engine library, written in C# and targeted at .NET runtime users
Serialization
Protobuf.NET - Protocol buffers is the name of the binary serialization format used by Google for much of their data communicationsJson.NET - Popular high-performance JSON framework for .NET
ServiceStack.Text - JSON, JSV and CSV Text Serializers used in servicestack.net
Msgpack-Cli - MessagePack implementation for Common Language Infrastructure
Jil - Fast .NET JSON Serializer, built on Sigil (used by StackOverflow)
ProtoBuf - Generate C# code for protocol buffer serialization from a .proto specification.
F# Data - F# type providers for accessing XML, JSON, CSV and HTML files (based on sample documents) and for accessing WorldBank data
Bond - cross-platform framework for working with schematized data. It supports cross-language de/serialization and powerful generic mechanisms for efficiently manipulating data.
Wire - A high performance polymorphic serializer for the .NET framework.
FileHelpers - free and easy to use .NET library to import or export data from fixed length or delimited records in files, strings or streams.
FsPickler - A fast multi-format message serializer for .NET
Migrant - Fast and flexible serialization framework usable on undecorated classes.
State machines
Stateless - Create state machines and lightweight state machine-based workflows directly in .NET codeAutomatonymous - A state machine library for .Net - allows you to write fluent style state machines
Appccelerate - State Machine - A powerful state machine library - configured with a fluent api and synchrounous and asynchronous state transition support
Static Site Generators
FsBlog - Blog aware, static site generation using F#Pretzel - A site generation tool (and then some) for .NET platforms
Sandra.Snow - Jekyll inspired static site generation for .NET
Wyam - A simple to use, highly modular, and extremely configurable static content generator
Style Guide
C# Style Guide - StackOverflow Q & A on style guidesC# Coding Conventions - Official MSDN C# code conventions
Template Engine
RazorEngine - Open source templating engine based on Microsoft's Razor parsing engineNustache - Open source library for logic-less templates
Stubble - Trimmed down {{mustache}} templates in .NET. Successor of Nustache.
DotLiquid - C# port of the Ruby Liquid templating language
Mustache Sharp - An extension of the mustache text template engine for .NET.
Testing
AutoFixture - AutoFixture is an open source framework for .NET designed to minimize the 'Arrange' phase of your unit testsBDDfy - BDDfy is the simplest BDD framework EVER!
Bogus - A simple and sane fake data generator for C#. Based on and ported from the famed faker.js.
ExpressionToCode - Use plain C# syntax in assertions that include both the expression expression and subexpression values in the failure message.
FakeItEasy - The easy mocking library for .NET https://fakeiteasy.github.io
Fluent Assertions - A set of .NET extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style test
FluentAutomation - Simple Fluent API for UI Automation
FsCheck - Random Testing for .NET.
Fuchu - A unit-testing library for F# with tests-as-values which makes DSLs extemely easy to create.
Machine.Specifications - Machine.Specifications (MSpec) is a context/specification framework that removes language noise and simplifies tests.
Moq - The most popular and friendly mocking framework for .NET
NBuilder - Rapid generation of test objects
NSubstitute - A friendly substitute for .NET mocking frameworks
NUnit - A unit-testing framework for all .Net languages
Rhino Mocks - Dynamic Mocking Framework for .NET
Shouldly - Shouldly is an assertion framework which focuses on giving great error messages when the assertion fails while being simple and terse.
SpecFlow - Binding business requirements to .Net code
xBehave.net - A BDD/TDD framework based on xUnit.net and inspired by Gherkin. http://xbehave.github.io
xUnit - xUnit.net is a free, open source, community-focused unit testing tool for the .NET Framework
Canopy - Canopy is a free, open source F# web automation and testing framework
Tools
Fiddler - The free web debugging proxy for any browser, system or platformOpen Live Writer - Blog writer which integrated with WordPress, Blogger, et. al. Open Live Writer makes it easy to write, preview, and post to your blog. For more information see http://openlivewriter.org .
CodeHub - CodeHub is the best way to browse and maintain your GitHub repositories on any iOS device!
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen and share it with a single press of a key. It also allows uploading images, text or other types of files to over 80 supported destinations you can choose from.
Myrtille - A native HTML4/5 Remote Desktop Protocol client, HTTP gateway written in C# for .NET
Opserver - Stack Exchange's Monitoring System
CatLight - Build status notifications for TFS/Jenkins/Travis/Appveyor. Cross-platform desktop app based on .Net Core and Electron. [Free][Proprietary]
Netling - A load tester client for easy web testing. It is extremely fast while using little CPU or memory.
Papercut - Papercut is an open source (.NET based) test email viewer that runs locally with a built-in SMTP server designed to receive and notify of test email messages.
Visual Studio Uninstaller - Uninstall and clean up all components of Visual Studio.
AnyStatus - A free and open source Visual Studio extension that adds monitoring capabilities and build status notifications to Visual Studio.
Trading
Lean - Lean Engine is an open-source fully managed C# algorithmic trading engine built for desktop and cloud usage. https://lean.quantconnect.comStockSharp - Trading and algorithmic trading open source platform (stock markets, forex, bitcoins and options). http://stocksharp.com
UI Automation
Managed Windows API - Introspect and automate third-party Windows / VC++ applications without needing its source code.Visual Studio Plugins
Web Essentials - Web Essentials extends Visual Studio with lots of new features that web developers have been missing for many yearsVsVIM - VIM in Visual Studio
Nuget Package Manager - NuGet is the package manager for the Microsoft development platform including .NET
SideWaffle - A collection of Item Templates for Visual Studio 2012/2013 that makes any web developer's life much easier
Resharper - Developer Productivity Tool for Visual Studio [$]
Refactoring Essentials - Open source extension for C# and VB.NET refactorings, including code best practice analyzers.
CodeContracts - Source code for the CodeContracts tools for .NET
Git Diff Margin - Displays live Git changes of the currently edited file on Visual Studio margin and scroll bar
Productivity Power Tools - A set of extensions to Visual Studio Professional (and above) which improves developer productivity.
VSColorOutput - Color highlighting for Build, Find and Debug output windows. Custom match patterns and colors can be added.
Developer Assistant - Developer Assistant for Visual Studio enables developers to find and reuse over 21 million code snippets and code sample projects from within the Visual Studio IDE.
Web Browsers
CefSharp - HTML5, CSS3 and JS web browser powered by Chromium, for WinForms and WPFWeb Frameworks
ASP.NET MVC - ASP.NET is a free web framework for building great web sites and applicationsFubuMVC - A front-controller style MVC framework for .NET
NancyFx - Lightweight, low-ceremony, framework for building HTTP based services on .Net and Mono
IISNode - Host NodeJS applications in IIS
Suave.IO - Framework/library/web server that makes you cry tears of joy after finishing your project ahead-of-time when you look at the beautiful code you've written in
[F#].
Web Servers
Kestrel - A web server for ASP.NET Core based on libuvEmbedIO - Web server built on Mono and cross-platform
XSP - Mono's ASP.NET hosting server. This module includes an Apache Module, a FastCGI module that can be hooked to other web servers as well as a standalone server used for testing (similar to Microsoft's Cassini)
WebSocket
Fleck - Fleck is a WebSocket server implementation in C#. Branched from the Nugget projectSignalR - Library for ASP.NET developers that makes it incredibly simple to add real-time web functionality to your applications
SuperSocket - SuperSocket is a light weight extensible socket application framework
Websocket-Sharp - A C# implementation of the WebSocket protocol client and server
WebSocket4NET - WebSocket client for .NET 2.0+, Xamarin, Mono, Silverlight, Windows Phone, & WinRT
Crossertech - Provides a great set of tools for you to build real-time applications on the Microsoft.NET plattform and much more. [$]
WampSharp - A C# implementation of The Web Application Messaging Protocol - a protocol that provides messaging patterns of Remote Procedure Calls and Publish/Subscribe over WebSockets.
NetGain - A high performance websocket server library powering Stack Overflow.
Websockets.PCL - WebSockets.PCL is a portable class library, profile 259, C# WebSocket implementation.
Windows Services
TopShelf - An easy service hosting framework for building Windows services using .NETOther Lists
.NET-libraries-that-make-your-life-easier - Open Source .NET libraries that make your life easierawesome-LINQ - A curated collection of awesome LINQ libraries, tools, and more.
awesome-analyzers - A curated list of .NET Compiler Platform ("Roslyn") diagnostic analyzers and code fixes.
C# Algorithms, Data Structures - A list of algorithms and data structures implementations.
Awesome .NET Core - A collection of awesome .NET core libraries, tools, frameworks and software
ASP.NET Core Library and Framework Support - A list of what .NET libraries and frameworks are currently supported by ASP.NET Core and .NET Core (also at ANCLAFS.com).
Awesome .NET Performance - A curated list of awesome .NET Performance books, courses, trainings, conference talks, blogs and most inspiring open source contributors.
awesome-ddd - A curated list of Domain-Driven Design (DDD), Command Query Responsibility Segregation (CQRS), Event Sourcing, and Event Storming resources
Awesome Unity - A categorized community-driven collection of high-quality awesome Unity assets, projects, and resources.
Awesome Xamarin - A collection of interesting libraries/tools for Xamarin mobile projects.
更多资源
原文：https://github.com/quozd/awesome-dotnet微软官方开源
官网：https://github.com/Microsoft/dotnet.NET Compiler Platform ("Roslyn")
.NET Core
ASP.NET Core
EntityFramework
Orleans
Exceptionless
Glimpse
JSON.NET
Mobius: C# API for Apache Spark
MonoGame
Mono Project
MVVM Cross
MVVM Light Toolkit
ReactiveUI
.NET开源基金项目
官网：https://github.com/dotnet/homeBrian Lagunas & Brian Noyes
Prism
Cake
Cake
(and more)
Couchbase
Couchbase Lite for .NET
Dominick Baier & Brock Allen
IdentityManager
IdentityServer
Force.com
Force.com Toolkit for .NET
Jb Evain
Mono.Cecil
Microsoft
.NET Core
.NET Core CLR
.NET Core Framework
.NET Compiler Platform ("Roslyn")
.NET Micro Framework
ASP.NET 5
ASP.NET SignalR
Azure SDK for .NET
Kudu
MS Build
Open Live Writer
Open Office SDK
Reactive Extensions for .NET
WCF
WorldWideTelescope
Mono Project
System.Drawing
Orchard
Orchard CMS
Protobuild
Protobuild
Protobuild Manager
(and more)
Umbraco
Umbraco CMS
WiX Toolset
WiX Toolset
Xamarin
MailKit
MimeKit
Xamarin.Auth
Xamarin.Mobile
xUnit.net
xUnit.net
园友补充
WeiXinMPSDK：一个集成了微信所有API的开源项目。官网（https://github.com/JeffreySu/WeiXinMPSDK）Expression Evaluator：动态计算表达式。官网（https://github.com/RupertAvery/csharpeval）
PDFsharp & MigraDoc：PDF操作。官网（http://www.pdfsharp.com/PDFsharp/）
DiffPlex：文件差异对比，类似Github版本控制。官网（http://diffplex.codeplex.com/）
DynamicJson：像Javascript一样操作Json。官网（http://dynamicjson.codeplex.com/）
Glimpse：网站性能监听，支持客户端，服务器端监听，非常好用，开发必备。官网（http://getglimpse.com/）
Sqlsugar:ORM框架，性能比Dapper，EF还快。官网（https://github.com/sunkaixuan/SqlSugar）
百小僧 提供
ORM
PetePoco 简单，快速易用的微型ORM工具 官网
NPoco 在PetaPoco上做的扩展 官网
应用
nopcommerce 电商平台 官网
James-yu 提供
SQLite：是一款轻型的数据库，是遵守ACID的关系型数据库管理系统，它包含在一个相对小的C库中 官网
神樹桜乃 提供
持续集成 jenkins：是一个广泛用于持续构建的可视化web工具,持续构建说得更直白点,就是各种项目的"自动化"编译、打包、分发部署
半生铭熙 提供
DiffPlex：文件差异对比，类似Github版本控制。官网（http://diffplex.codeplex.com/）链接已更新到Github
qust_青岛 提供
JqGridForMvc 快速开发必备利器，https://github.com/halower/JqGridForMvc
闪电风 提供
内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理 
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