Top 50 Awesome List

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Higher Education


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A collection of awesome .NET libraries, tools, frameworks and software
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Awesome .NET!

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A collection of awesome .NET libraries, tools, frameworks, and software.

Inspired by awesome-rubystars12.3k, awesome-phpstars27.1k, awesome-pythonstars137.5k, frontend-dev-bookmarksstars34.8k and ruby-bookmarksstars2k.

Contributions are always welcome! Please take a look at the contribution guidelines and quality standard pages first. We accept proprietary and commercial software too.

Thanks to all contributors, you're awesome and wouldn't be possible without you! The goal is to build a categorized community-driven collection of very well-known resources.



To the extent possible under law, Vitali Fokin has waived all copyright and related or neighboring rights to this work.

Table of Contents

Algorithms and Data structures

  • Algorithmiastars470 - 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# Algorithmsstars5k - 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.
  • Towelstars573 - data structures, algorithms, mathematics, metadata, extensions, console, measurements, and other useful stuff
  • Akade.IndexedSetstars10 - A convenient data structure supporting efficient in-memory indexing and querying, including range queries and fuzzy string matching.


  • Telegram.Botstars2.3k - .NET Client for Telegram Bot API
  • TLSharpstars992 - It's a perfect fit for any developer who would like to send data directly to Telegram users or write own custom Telegram client.
  • WTelegramClientstars299 - Automate a user account on Telegram, using the latest version of Telegram Client API
  • NancyFxstars7.2k - Lightweight, low-ceremony, framework for building HTTP-based services on .NET and Mono
  • ASP.NET Web API - 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 Sparkstars931 - Mobius adds C# language binding to Apache Spark, enabling the implementation of Spark driver code and data processing operations in C#.
  • ServiceStackstars5.1k - Thoughtfully architected, obscenely fast, thoroughly enjoyable web services for all
  • Neliburstars126 - 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 Contribstars768 - Collection of open source projects to help improve your work with ASP.NET Web API
  • Xamarin.Essentials - Xamarin.Essentials provides developers with cross-platform APIs for their mobile applications.
  • FFImageLoading - Fast & Furious Image Loadingstars1.4k - This Library to load images quickly & easily on Xamarin.iOS, Xamarin.Android, Xamarin.Forms, Xamarin.Mac / Xamarin.Tizen and Windows (UWP, WinRT)
  • Ocelotstars7.2k - .NET core API Gateway
  • CommandQuerystars68 - Command Query Separation for 🌐ASP.NET Core ⚡AWS Lambda ⚡Azure Functions ⚡Google Cloud Functions 🌐ASP.NET Web API 2

Application Frameworks

  • .NET Boxed Frameworkstars612 - .NET Core Extensions and Helper NuGet packages
  • ASP.NET Boilerplatestars10.5k - A starting point for new modern ASP.NET MVC web applications with best practices and most popular tools.
  • ABPstars8.5k - The next generation of the ASP.NET Boilerplate web application framework.
  • Butterfly Server .NET - Enables defining a Web API and Subscription API that automatically synchronizes datasets across connected clients. Allows building real-time web apps and native apps with minimal effort.
  • Orleansstars8.7k - 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
  • Newbe.Claptrapstars207 - This is a set of server-side development frameworks with reactive, event sourcing and Actor pattern as basic theories. On top of this, developers can develop "distributed", "scale out", and "easy to test" application more simply.
  • CoreFXstars17.9k - The corefx repo contains the library implementation (called "CoreFX") for .NET Core. It includes System.Collections, System.IO, System.Xml and many other components.
  • CSLA .NETstars1k - business layer development framework
  • Monostars10k - Open source ECMA CLI, C#, F#, VB and .NET implementation
  • Mono-Addinsstars151 - Mono.Addins is a generic framework for creating extensible applications, and for creating add-ins which extend those applications
  • peasystars471 - 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!
  • Plasticstars31 - Plastic provides encapsulation of things like Domain, Application Rules, Business Rules or Business Logic in Application. For this, Command pattern is used.
  • Signalsstars40 - Signals is a .NET5 based framework which focuses on increasing the quality and productivity within development teams by providing them with tools, aspects and processes.
  • Spring.Netstars777 - Spring.NET is an open source application framework that makes building enterprise .NET applications easier
  • DotNettystars3.6k - DotNetty is a port of Netty, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.
  • AspectCore Frameworkstars1.5k - AspectCore Framework is an Aspect-Oriented Programming based cross platform framework for .NET Core and .NET Framework. Core support for aspect-interceptor,dependency injection integration , web applications , data validation , and more.
  • HopFrameworkstars50 - HopFramework is a framework to create projects easily applying Domain Driven Design and a lot of patterns to delivery a better solution.
  • Fusionstars1.4k - .NET Core and Blazor library that attempts to dramatically improve the way we implement real-time and high-load services by introducing a novel kind of "computed observables" - immutable, thread-safe, and most importantly, almost invisible for developers. Samples 1stars120 Samples 2stars57
  • silkystars191 - The Silky framework is designed to help developers quickly build a microservice development framework through simple code and configuration under the .net platform.

Application Templates

  • .NET Boxed Templatesstars3k - .NET project templates with batteries included, providing the minimum amount of code required to get you going faster.
  • ASP.NET Core Starter Kitstars1.1k - backend: .NET Core, EF Core, C#; frontend: Babel, Webpack, React, CSS Modules
  • ProjectScaffoldstars515 - 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.
  • Serenestars2.2k - 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-Wafflestars652 - Large collection of useful templates for Web and Desktop development.
  • Template10stars1.4k - Windows 10 templates with design patterns.
  • Nucleusstars336 - Vue startup application template that uses ASP.NET Core API layered architecture at the back-end and JWT based authentication
  • JHipster.NETstars245 JHipster blueprint for replace orginal SpringBoot Backend by core. The main goal generator of jhipster is showcases best practices of modern web development in java. So the goal of the project is to do the same in .net. The Frontend can be generated with angular or react and soon with blazor.

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.

Assembly Manipulation


Authentication and Authorization


  • BootstrapBlazorstars1.1k - A set of enterprise-class UI components based on Bootstrap and Blazor.
  • ant-design-blazorstars4.4k - A set of enterprise-class UI components based on Ant Design and Blazor WebAssembly.
  • MASA.Blazorstars375 - A set of enterprise-class UI components based on Material Design and Blazor WebAssembly.
  • Megabit.Blazorisestars2.4k - Blazorise is a component library built on top of Blazor and CSS frameworks like Bootstrap, Bulma and Material. Very easy to use.



  • .NET Core in Action - teaches how to write applications and libraries with .NET Core. [$]
  • C# in Depth - 3rd edition, 4th edition (early access) - deep dive into the details of the C# language. [$]
  • CLR via C# - Dig deep and master the intricacies of the common language runtime, C#, and .NET development. [$]
  • Functional Programming in C# - teaches how to best leverage the functional features of the C# language. [$]
  • Functional Programming in C#, Second Edition - Real world examples and practical techniques for functional programming in C# without the jargon and theory. [$]
  • Microservices in .NET Core - A comprehensive guide to building microservice systems using the .NET stack. [$]
  • Dependency Injection in .NET 2nd edition - teaches you to use Dependency Injection to reduce hard-coded dependencies between application components in .NET. [$]
  • ASP.NET Core in Action - teaches how to write web applications with ASP.NET Core. [$]
  • ASP.NET Core in Action, Second Edition - A comprehensive guide to creating web applications with ASP.NET Core 5.0. [$]
  • Entity Framework Core in Action - teaches how to use Entity Framework Core, including lighter weight data access alternatives such as Dapper. [$]
  • The Little ASP.NET Core Book - A free, open-source, tutorial-based book aiming to provide a simple introduction to ASP.NET Core.
  • Blazor in Action - A guide to building UIs and client-side applications using C# and .NET. [$]
  • Code Like a Pro in C# - Build on your existing programming skills and upskill to professional-level C# programming. [$]
  • ASP.NET Core Security - A practical and hands-on guide to securing web applications built with ASP.NET. [$]
  • Microservices in .NET Second Edition - A comprehensive guide to building microservice applications using the .NET stack. [$]
  • ASP.NET Core Razor Pages in Action - A comprehensive guide to how to use Razor Pages to create dynamic websites that are easy to test and scale. [$]
  • ASP.NET Core Web API - A book about designing and implementing APIs using the REST and GraphQL standards. [$]
  • .NET Maui in Action - A book about creating mobile and desktop apps using a common set of .NET tools. [$]
  • .NET in Action, Second Edition - An introduction to implementing full-featured, cross-platform professional applications on the Microsoft .NET platform. [$]
  • Pro .NET Memory Management - Takes a deep dive into .NET memory management, including comprehensive coverage of how .NET memory works, implementation details, possible pitfalls, and ways to work around them. [$]
  • Pro .NET Benchmarking - Provides an in-depth look at software benchmarking for accurate performance measurement. Helps you get maximum performance impact by identifying and targeting the right bottlenecks. Includes coverage of the latest compilers and processors. [$]
  • Pro .NET Framework with the Base Class Library - Shows valuable tips and examples that reinforce the correct use of manage types, including how to avoid boxing/unboxing and better use of memory resources. [$]
  • Pro .NET 5 Custom Libraries - Consists of sample projects for each data type implementation. Demonstrates implementation in C#. Covers dos and don'ts of each implementation. [$]
  • Pro ASP.NET Core 6 - The most comprehensive coverage available on ASP.NET Core 6 in full-color. Detailed explanations and plenty of working code to learn new functionality. Provides a fully functioning ASP.NET Core 6 application that can be used as a template for projects. [$]
  • Pro Microservices in .NET 6 - Shows you how to get up to speed with .NET 6, Docker, and microservices. Teaches you how to leverage microservice design patterns to strengthen an application. Provides environment options for orchestrators and Azure Kubernetes Service. [$]

Build Automation

  • Psakestars1.5k - .NET-based build automation tool written in PowerShell
  • FAKEstars1.2k - F# Make, a cross-platform build automation system
  • Invoke-Buildstars518 - PowerShell build and test automation tool inspired by Psake.
  • MSBuildstars4.8k - The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio
  • Cakestars3.3k - Cake (C# Make) is a cross-platform build automation system with a C# DSL.
  • Nakestars209 - Magic script-based C# task runner
  • Nukestars1.6k - Cross-platform build automation system
  • FlubuCorestars805 - A cross platform build and deployment automation system for building projects and executing deployment scripts using C# code.

Business Intelligence

  • FastReportstars2k - The open source report generator for .NET Core 2.x/.Net Framework 4.x. FastReport can be used in ASP.NET MVC, Web API applications.
  • NReco PivotData - in-memory data aggregation/OLAP library, pivot tables generation (render to HTML, exports), ASP.NET pivot builder control [$][Free for single-deployment/non-SaaS]


  • CacheCowstars795 - An ASP.NET Web API HTTP caching implementation both on client and server
  • Akavachestars2.3k - An asynchronous, persistent key-value store
  • EasyCachingstars1.4k - A caching library that contains basic and some advanced usages of caching which can help handle caching more easier!
  • CacheManagerstars2.2k - A common interface and abstraction layer for caching.
  • Foundatiostars1.6k - A common interface with in memory, Redis and hybrid implementations.
  • Cashewstars76 - a .NET library for caching responses easily with an HttpClient through an API that is simple and elegant yet powerful.
  • Cache Towerstars357 - An efficient multi-layered caching system for .NET (In-Memory, Redis, Database, File etc)
  • FusionCachestars246 - An easy to use, high performance and robust cache with an optional distributed 2nd layer and some advanced features, like a fail-safe mechanism and advanced timeouts management


  • iCal.NETstars593 iCal.NET is an iCalendar (RFC 5545) class library for .NET aimed at providing RFC 5545 compliance, while providing full compatibility with popular calendaring applications and libraries.


  • Streamstars33 Official .NET API client for Stream Chat, a service for building chat 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
  • Argustars362 - Declarative CLI argument & XML configuration parser for F# applications.
  • CliFxstars1.2k - Declarative framework for building command line interfaces.
  • Typinstars196 - Simple to use declarative framework for interactive CLI applications and command line tools (direct mode) that has its roots in CliFx.
  • cliprstars87 - A CLI library inspired by Python's argparse that transforms a command line into a strongly-typed object. It supports custom argument types, automated (and localized) help generation, and a variety of ways to store parsed arguments.
  • CliWrapstars2k - Wrapper for command line interfaces.
  • Colorful.Consolestars1.1k - Colorful console output.
  • CommandDotNetstars427 - Model your console app using C# in a composable manner. Define commands with methods. Define subcommands with properties or nested classes. Extensible parsing and command execution.
  • Command Line Parserstars3.6k - The Command Line Parser Library offers to CLR applications a clean and concise API for manipulating command-line arguments and related tasks
  • CommandLineUtilsstars2k - This is a fork of Microsoft.Extensions.CommandLineUtils, which is no longer under active development.
  • CsConsoleFormatstars321 - .NET C# library for advanced formatting of console output.
  • Docoptstars316 - Command-line interface description language that will make you smile.
  • EntryPointstars138 - Composable CLI Argument Parser for .NET Core & .NET Framework 4.5+.
  • Fluent Command Line Parserstars519 - A simple, strongly typed .NET C# command-line parser library using a fluent easy to use interface
  • JustClistars24 - That’s just a quick way to create your own command line tool.
  • Gui.csstars6.9k - Terminal UI toolkit for .NET.
  • Power Argsstars523 - 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
  • ReadLinestars788 - A GNU-Readline like library for .NET/.NET Core.
  • RunInfoBuilderstars40 - A unique command line parser, utilizing object trees for commands.
  • SharpNetSHstars57 - A simple netsh library for C#.
  • spectre.consolestars5.4k - A library that makes it easier to create beautiful console applications.


  • Runtimestars9.8k - Mono and CoreCLR .NET runtimes, as well as the standard library and some higher level components like System.Linq and System.Text.Json.


  • Composite C1stars245 - A web CMS that focus on UX and adaptability
  • mojoPortal stars168 - MojoPortal is an extensible, cross database, mobile friendly, web content management system (CMS) and web application framework written in C# ASP.NET
  • N2CMSstars360 - Open source, lightweight, code-first CMS able to seamlessly integrate into any MVC project.
  • Orchard stars2.3k - Free, open source, community-focused project aimed at delivering applications and reusable components on the ASP.NET platform
  • Piranha CMSstars408 - 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.
  • Umbracostars3.7k - Umbraco is a free open source Content Management System built on the ASP.NET platform
  • 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.
  • BlogEngine.NETstars889 - Simple but full featured ASP.NET blog
  • Squidexstars1.7k GitHub stars GitHub stars - Open source headless CMS and content management hub.

Code Analysis and Metrics

  • .NET Compiler Platform ("Roslyn") Analyzersstars1.3k - A number of Roslyn diagnostic analyzers initially developed to help flesh out the design and implementation of the static analysis APIs.
  • NDepend - is a Visual Studio and VS Team Services extension that estimates your .NET code quality and Technical-Debt, that lets create code rules with C# LINQ syntax, visualize code structure and focus on changes and evolution. [$]
  • App.Metricsstars2.1k - App Metrics is an open-source and cross-platform .NET library used to record and report metrics within an application and reports it's health. See the docs for me details.
  • CodeMaid - Visual studio extension to cleanup, dig through and simplify C#, C++, F#, VB, PHP, JSON, XAML, XML, ASP, HTML, CSS, LESS, SCSS, JavaScript and TypeScript coding.
  • StyleCop - StyleCop analyzes C# source code to enforce a set of style and consistency rules
  • Gendarmestars79 - Extensible rule-based tool to find problems in .NET applications and libraries
  • Metrics-Netstars626 - Capturing CLR and application-level metrics. So you know what's going on.
  • AspNet.Metricsstars9 - Capturing CLR, application-level web request metrics. Middleware and extensions using Metrics-Net
  • BenchmarkDotNetstars7.9k - Powerful .NET library for benchmarking.
  • Codinion - Enhanced syntax highlighting for C# and some other "Visual" features. [$]
  • NsDepCopstars134 - Static code analysis tool to enforce namespace dependency rules in C# projects.
  • WebBenstars5 - Is a tool for benchmarking your Hypertext Transfer Protocol (HTTP) server.

Code Snippets

  • .NET Fiddle - Write, compile and run C#, F# and VB code in the browser. The .Net equivalent of JSFiddle.
  • Gistlyn - Create, run and share your executable C# GitHub Gists.
  • Sharplab - Run C# code using different branches and versions of Roslyn, see the IL that was produced and examine the JIT's output.

Compilers, Transpilers and Languages

  • ClojureCLRstars1.4k - A port of Clojure to the CLR, part of the Clojure project
  • F#stars2.2k - The F# compiler, core library and tools - a functional programming language for safer, faster, better code writing.
  • Hybridizer - CIL (C#, VB.Net, F#) to CUDA compiler. [$]
  • IronSchemestars310 - R6RS Scheme compiler, runtime and many standard libraries
  • JSILstars1.7k - CIL to JavaScript Compiler
  • Mondstars285 - A dynamically typed scripting language written in C# with a REPL, debugger, and simple embedding API.
  • Mono-basicstars97 - Visual Basic Compiler and Runtime
  • Nemerlestars589 - 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.
  • Netjsstars932 - .NET to TypeScript and JavaScript compiler. Portable Class Libraries work great for this. You can even pass EXEs.
  • Pstars2.5k - P is a language for asynchronous event-driven programming.
  • PeachPiestars2k - PeachPie is a PHP compiler and runtime for .NET and .NET Core, which allows entire PHP applications to run on the modern, secure and performant .NET and .NET Core platforms.
  • Roslynstars16.3k - 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.
  • Testura.Codestars257 - Wrapper around the Roslyn API and used for generation, saving and compiling C# code. It provides methods and helpers to generate classes, methods, statements and expressions.
  • VisualFSharpstars3.2k - The Visual F# compiler and tools
  • Fablestars2.4k - F# to JavaScript Compiler
  • LinqOptimizerstars451 - An automatic query optimizer-compiler for Sequential and Parallel LINQ
  • Roslyn-linq-rewritestars697 - Compiles C# code by first rewriting the syntax trees of LINQ expressions using plain procedural code, minimizing allocations and dynamic dispatch.
  • Iron pythonstars1k - A python 2 implementation that is integrated with the dot net framework.
  • Amplifier.NETstars130 - Write and compile your own kernel function using C# and Amplifier will take care of running it on your favorite hardware. Amplifier allows .NET developers to easily run complex applications with intensive mathematical computation on Intel CPU/GPU, NVIDIA, AMD without writing any additional C kernel code.


  • SharpCompressstars1.8k - 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 implemented
  • DotNetZip.Semverdstars462 - 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 P/Invoke
  • Snappy.Sharpstars126 - 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 [$]
  • MyGet - Continuous Integration and Deployment, Hosted Package Repository for NuGet, NPM, Bower and VSIX [$]
  • AppVeyor - .NET Continuous Integration and Deployment as a service. [$] [Free for OSS]


  • 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-netstars351 - libsodium for .NET - A secure cryptographic library
  • NaCl.Corestars54 - A managed-only cryptography library for .NET which provides modern cryptographic primitives.
  • Paseto.Corestars43 - A Paseto (Platform-Agnostic Security Tokens) implementation for .NET
  • Pkcs11Interopstars200 - Managed .NET wrapper for unmanaged PKCS#11 libraries that provide access to the cryptographic hardware
  • StreamCryptorstars119 - Stream encryption & decryption with libsodium and protobuf
  • SecurityDriven.Infernostars534 - .NET crypto library. Professionally audited.
  • CryptoNetstars15 - .NET simple crypto library. Native c#.


Database Drivers

  • MySQL Connector - Connector/Net is a fully-managed ADO.NET driver for MySQL
  • Npgsqlstars2.6k - .NET data provider for PostgreSQL
  • MongoDBstars2.8k - Official MongoDB C# driver
  • RethinkDb.Driverstars372 - A RethinkDB database driver in C# striving for 100% ReQL API compatibility and completeness.
  • ServiceStack Redisstars2.3k - .NET's leading C# Redis client
  • StackExchange Redisstars5.3k - General purpose Redis client from StackExchange
  • Cassandrastars544 - DataStax .NET driver for Apache Cassandra
  • Couchbasestars263 - 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
  • Storage.Netstars548 - Generic storage abstractions and implementations for popular cloud storage providers like Amazon S3, Azure Service Bus, Azure Event Hub, Azure Storage, Azure Data Lake Store and many others.
  • Stowagestars87 - Bloat-free zero dependency .NET cloud storage kit that supports at minimum THE major cloud providers.


  • NodaTimestars2.2k - 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.
  • DateTimeExtensionsstars446 - Common Date Time operations on the form of extensions to System.DateTime, including holidays and working days calculations on several culture locales.
  • Exceptionless.DateTimeExtensionsstars167 - DateTimeRange, Business Day and various DateTime, DateTimeOffset, TimeSpan extension methods.


  • dnSpystars21.4k - open-source .NET assembly browser, editor, decompiler and debugger
  • ILSpy - ILSpy is the open-source .NET assembly browser and decompiler
  • JustDecompile Enginestars1.3k - The decompilation engine of JustDecompile
  • dotPeek - Free-of-charge standalone tool based on ReSharper's bundled decompiler. It can reliably decompile any .NET assembly into equivalent C# or IL code. It can create Visual Studio solutions based on the original binary files in a straight-forward way. [Proprietary] [Free]


  • Unfoldstars133 - PowerShell-based deployment solution for .NET web applications
  • DbUpstars1.7k - .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 Packstars182 - Used to build NuGet packages of your application for deployment using tools such as Octopus Deploy
  • yuniqlstars314 - Free and open source schema versioning and migration tool made with .NET Core. Run migrations with plain SQL, arrange versions in ordinary folders and seed your data from CSV via stand-alone CLI (no CLR needed), Azure Pipelines, Docker or ASP.NET Core code.


  • Vortice.Windowsstars678 - Cross platform .NET standard libraries for DirectX, WIC, Direct2D1, XInput, XAudio and X3DAudio

Distributed Computing

  • .NEXT Raftstars819 - Raft implementation for .NET and ASP.NET Core that allows to build clustered microservices powered by distributed consensus and replication
  • Orleansstars8.7k - 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.
  • Orleankkastars470 - 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 available for F# called Orleankka.FSharp.
  • Akka.netstars4.2k - 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.
  • Zebusstars267 - Zebus is a lightweight, highly 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.
  • FsShelterstars1 - F# library for authoring Apache Storm components and topologies. Offering high-level abstractions for distributed and fault-tolerant event stream processing.
  • Foundatiostars1.6k - Pluggable foundation blocks for building distributed apps.
  • MBrace - Integrated Data Scripting for the Cloud
  • protoactor-dotnetstars1.4k - Proto Actor - Ultra fast distributed actors for Golang and C#


  • cmdstars338 - C# library to run external programs in a simpler way. Demonstration of "dynamic" features of C#.


E-Commerce and Payments

  • Paypal Merchant SDKstars81 - Official PayPal Merchant SDK for .NET
  • NopCommercestars7.4k - nopCommerce. Free open-source e-commerce shopping cart (ASP.NET Core)
  • ServiceStack.Stripestars193 - Typed .NET clients for REST APIs
  • SmartStoreNETstars2.5k - Free ASP.NET MVC e-commerce Shopping Cart Solution
  • Stripe.Netstars1.2k - is a full service .NET API for
  • Virto Commercestars1k - 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, AngularJS and many other cutting edge technologies. It can be deployed in Microsoft Cloud (Azure), Amazon Web Services (AWS) and on-premise.
  • SimplCommercestars3.6k - Super simple ecommerce system built on .NET Core. Simple to use and easy to customize. Thanks to .NET Core, you can run the SimplCommerce on Windows, Linux. With various RDBMS: Microsoft SQL Server, PostgreSQL, MySQL
  • GrandNodestars535 - Headless, multi-vendor, multi-tenant, the most advanced open source e-commerce platform based on .NET Core 5.0 and MongoDB.
  • Squarestars28 - The official SDK for Square payments and other Square APIs.
  • Adyenstars74 - The official Adyen Payment API Library for .NET

Environment Management


  • Cinchoo ETLstars556 - ETL Framework for .NET (Read / Write CSV, Flat, Xml, JSON, Key-Value formatted files)
  • Reactive ETL - Reactive ETL is a rewrite of Rhino ETL using the reactive extensions for .NET

Event aggregator and messenger

  • Mediator.Netstars309 - A simple mediator for .NET for sending command, publishing event and request response with pipelines supported
  • MediatRstars8.3k - Simple, unambitious mediator implementation in .NET
  • Rx Event Aggregator - Super-simple Reactive-Extension code from Reactive.EventAggregator
  • TinyMessengerstars253 - A lightweight event aggregator/messenger for loosely coupled communication.
  • Xer.Cqrsstars98 - A simple library for creating applications based on the CQRS pattern with support for attribute routing and hosted handlers. Developed in C# targeting .NET Standard 1.0.
  • FluentMediatorstars167 - FluentMediator is an unobtrusive library that allows developers to build custom pipelines for Commands, Queries and Events



Functional programming

  • Curryfystars46 - Provides strongly typed extensions methods for C# delegates to take advantages of functional programming techniques, like currying and partial application.
  • language-extstars4.8k - 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.
  • Optionalstars769 - A robust option type for C#
  • JFlepp.Maybestars3 - A Maybe type for C#, aimed as an idiomatic port of the option type in F# to C#
  • Optuplestars21 - .NET Standard Library for giving (bool, T) Option-like semantics in a non-obtrusive way; this is, there is no new option type dependency for a library or its users.
  • MoreLinq