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Awesome .NET!

Awesome Build Status Join the chat at https://gitter.im/quozd/awesome-dotnet

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

Inspired by awesome-ruby, awesome-php, awesome-python, frontend-dev-bookmarks and ruby-bookmarks.

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.

License

CC0

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

  • OneOf - OneOf provides discriminated unions for C# with exhaustive compile time matching.
  • 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.
  • Towel - data structures, algorithms, mathematics, metadata, extensions, console, measurements, and other useful stuff
  • Akade.IndexedSet - A convenient data structure supporting efficient in-memory indexing and querying, including range queries and fuzzy string matching.

API

  • FastEndpoints - High-performance middleground between classic ASP.NET Core API controllers and Minimal APIs. Using a REPR (Request-Endpoint-Response) pattern, this library eliminates the boilerplate and monolithic feel of controllers by improving colocation of code.
  • Telegram.Bot - .NET Client for Telegram Bot API
  • WTelegramClient - Automate a user account on Telegram, using the latest version of Telegram Client API
  • 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 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
  • Ocelot - .NET core API Gateway
  • CommandQuery - Command Query Separation for 🌐ASP.NET Core ⚡AWS Lambda ⚡Azure Functions ⚡Google Cloud Functions 🌐ASP.NET Web API 2
  • Population.NET - A .NET library allows clients to specify the exact fields they need, reducing unnecessary data transfer by avoiding the retrieval of all fields by default.

Application Frameworks

  • .NET Boxed Framework - .NET Core Extensions and Helper NuGet packages
  • ASP.NET Boilerplate - A starting point for new modern ASP.NET MVC web applications with best practices and most popular tools.
  • ABP - The next generation of the ASP.NET Boilerplate web application framework.
  • 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
  • Runtime - The runtime repo contains the library implementation (formerly called "CoreFX") for .NET (5+). It includes System.Collections, System.IO, System.Xml and many other components.
  • CSLA .NET - business layer development framework https://cslanet.com/
  • Mono - Open source ECMA CLI, C#, F#, VB and .NET implementation
  • 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!
  • Plastic - Plastic provides encapsulation of things like Domain, Application Rules, Business Rules or Business Logic in Application. For this, Command pattern is used.
  • Signals - 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.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.
  • AspectCore Framework - 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.
  • Fusion - .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 1 Samples 2
  • silky - 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 Templates - .NET project templates with batteries included, providing the minimum amount of code required to get you going faster.
  • ASP.NET Core Starter Kit - backend: .NET Core, EF Core, C#; frontend: Babel, Webpack, React, CSS Modules
  • 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.
  • Nucleus - Vue startup application template that uses ASP.NET Core API layered architecture at the back-end and JWT based authentication
  • JHipster.NET JHipster blueprint for replace orginal SpringBoot Backend by asp.net 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

  • LLamaSharp - C#/.NET Binding of llama.cpp, run LLaMA/GPT model using C# without having to compile lama.cpp.
  • LlmTornado - One .NET library to consume OpenAI, Anthropic, Cohere, Google, Azure, Groq, and self-hosed APIs.

Assembly Manipulation

  • Fody - Extensible tool for weaving .NET assemblies.
  • ILRepack - Open-source alternative to ILMerge.
  • Mono.Cecil - Cecil is a library to generate and inspect programs and libraries in the ECMA CIL form.

Assets

Authentication and Authorization

  • Abblix OIDC Server - A fully certified OpenID Connect server library for .NET by the OpenID Foundation, providing comprehensive support for OAuth2 and OpenID Connect across all profiles. [$][Free for non-commercial use]
  • ASP.NET Core Identity - New membership system for ASP.NET applications
  • ASP.NET SAML - SAML authentication support for ASP.NET apps
  • IdentityModel - Helper library for identity & access control in .NET 4.5 and MVC4/Web API.
  • openiddict - Flexible and versatile OAuth 2.0/OpenID Connect stack for .NET
  • Topaz - A fine-grained authorization system with .NET SDK.
  • Enforcer - Write fine grained authorization policy in easy-to-read language, and have it compiled to native .NET code [$]
  • SAML IdentityServer - Add SAML 2P support to your Duende IdentityServer [$]
  • SAML OpenIddict - Add SAML 2P support to your OpenIddict [$]

Blazor

  • BootstrapBlazor - A set of enterprise-class UI components based on Bootstrap and Blazor.
  • ant-design-blazor - A set of enterprise-class UI components based on Ant Design and Blazor WebAssembly.
  • MASA.Blazor - A set of enterprise-class UI components based on Material Design and Blazor WebAssembly.
  • Megabit.Blazorise - Blazorise is a component library built on top of Blazor and CSS frameworks like Bootstrap, Bulma and Material. Very easy to use.
  • blazork8s - k8s management ui in blazor and .NET Core.
  • MudBlazor - A Material Design framework for Blazor, allowing .NET developers to quickly build web apps, with extensive documentation and examples.

Blockchain

Build Automation

  • Psake - .NET-based build automation tool written in PowerShell
  • 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
  • Nuke - Cross-platform build automation system
  • FlubuCore - A cross platform build and deployment automation system for building projects and executing deployment scripts using C# code.
  • ModularPipelines - Write your pipelines in C#

Business Intelligence

  • FastReport - 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]

Caching

  • CacheCow - An ASP.NET Web API HTTP caching implementation both on client and server
  • Akavache - An asynchronous, persistent key-value store
  • EasyCaching - A caching library that contains basic and some advanced usages of caching which can help handle caching more easier!
  • CacheManager - A common interface and abstraction layer for caching.
  • FastCache - 10X faster alternative to MemoryCache for .NET
  • Foundatio - A common interface with in memory, Redis and hybrid implementations.
  • Cache Tower - An efficient multi-layered caching system for .NET (In-Memory, Redis, Database, File etc)
  • FusionCache - 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
  • BitFaster.Caching - Thread-safe in-memory caches optimized for very high concurrent throughput, near optimal hit rate and low latency.

Calendar

  • iCal.NET 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.

Chat

  • Stream Official .NET API client for Stream Chat, a service for building chat applications.

CLI

  • Argu - Declarative CLI argument & XML configuration parser for F# applications.
  • CliFx - Declarative framework for building command line interfaces.
  • CliWrap - Wrapper for command line interfaces.
  • CommandDotNet - 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 Parser - The Command Line Parser Library offers to CLR applications a clean and concise API for manipulating command-line arguments and related tasks
  • CommandLineUtils - This is a fork of Microsoft.Extensions.CommandLineUtils, which is no longer under active development.
  • Docopt - Command-line interface description language that will make you smile.
  • Gui.cs - Terminal UI toolkit for .NET.
  • 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
  • SharpNetSH - A simple netsh library for C#.
  • spectre.console - A library that makes it easier to create beautiful console applications.

CLR

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

CMS

  • FluentCMS - FluentCMS is open source AI Driven ASP.NET Core Blazor Content Management System (CMS)
  • Composite C1 - A web CMS that focus on UX and adaptability
  • mojoPortal - MojoPortal is an extensible, cross database, mobile friendly, web content management system (CMS) and web application framework written in C# ASP.NET
  • 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. https://piranhacms.org
  • Umbraco - 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.
  • Squidex GitHub stars GitHub stars - Open source headless CMS and content management hub. https://squidex.io
  • fluent-cms - RESTful CRUD (Create, Read, Update, Delete) APIs, Admin Panel web pages,a GraphQL-style query designer and a WYSIWYG web page designer, all fully configurable without writing code.

Code Analysis and Metrics

  • .NET Compiler Platform ("Roslyn") Analyzers - A number of Roslyn diagnostic analyzers initially developed to help flesh out the design and implementation of the static analysis APIs.
  • PVS-Studio - PVS-Studio is a static analyzer on guard of code quality, security (SAST), and code safety. [Free for OSS] [$]
  • NDepend - is a Visual Studio and VS Team Services extension that estimates your .NET code quality and Technical-Debt, that lets create code rules with C# LINQ syntax, visualize code structure and focus on changes and evolution. [$]
  • StyleCop - StyleCop analyzes C# source code to enforce a set of style and consistency rules
  • BenchmarkDotNet - Powerful .NET library for benchmarking.
  • Bencher - Suite of continuous benchmarking tools designed to catch performance regressions in CI.
  • NsDepCop - Static code analysis tool to enforce namespace dependency rules in C# projects.
  • WebBen - 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.
  • Sharplab - Run C# code using different branches and versions of Roslyn, see the IL that was produced and examine the JIT's output.
  • Entity Framework Playground - Examine the generated SQL for migrations and queries by writing DbContext and queries using it in the browser. Learn by example, compare different versions of Entity Framework and providers such as MS SQL, PostgreSql and Sqlite.

Compilers, Transpilers and Languages

  • 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.
  • Hybridizer - CIL (C#, VB.Net, F#) to CUDA compiler. [$]
  • IronScheme - R6RS Scheme compiler, runtime and many standard libraries
  • Mond - A dynamically typed scripting language written in C# with a REPL, debugger, and simple embedding API.
  • 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.
  • P - P is a language for asynchronous event-driven programming.
  • PeachPie - 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.
  • 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.
  • FSharp - The F# compiler and tools
  • Fable - F# to JavaScript Compiler
  • Iron python - A python 3 implementation that is integrated with the dot net framework.
  • IKVM - A Java Virtual Machine and Bytecode-to-IL Converter for .NET. Execute compiled Java code (bytecode) on .NET Framework or .NET Core.
  • Lib.Harmony - Rewrite mono and C# methods at the runtime, Either write a method that will be executed, or edit the code of the method in IL, mainly used for game modding.
  • dotnet-repl - C# REPL (read-eval-print loop)

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 implemented

Configuration

  • AgileConfig - AgileConfig is a lightweight configuration center that helps you manage all your application's configurations through website.

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]

Cryptography

  • BouncyCastle - Together with the .Net System.Security.Cryptography, the reference implementation for cryptographic algorithms on the CLR.
  • NaCl.Core - A managed-only cryptography library for .NET which provides modern cryptographic primitives.
  • Paseto.Core - A Paseto (Platform-Agnostic Security Tokens) implementation for .NET
  • Pkcs11Interop - Managed .NET wrapper for unmanaged PKCS#11 libraries that provide access to the cryptographic hardware
  • SecurityDriven.Inferno - .NET crypto library. Professionally audited.
  • CryptoNet - .NET simple crypto library. Native c#.

Cloud Storage

  • Foundatio - Cloud Storage library with AWS, Azure and many other providers supported.
  • FluentStorage - A polycloud .NET cloud storage abstraction layer originally known as Storage.Net. Provides a generic interface for Blob storage (AWS S3, GCP, FTP, SFTP, Azure Blob/File/Event Hub/Data Lake) and Messaging (AWS SQS, Azure Queue/ServiceBus).
  • Stowage - Bloat-free zero dependency .NET cloud storage kit that supports at minimum THE major cloud providers.
  • Cloud Storage:- This library provides a universal interface for accessing and manipulating data in different cloud blob storage providers (Azure Storage, AWS S3, Google Cloud Storage. It makes it easy to switch between providers or to use multiple providers simultaneously, without having to learn and use multiple APIs.

Database

Database Drivers

  • DuckDB.NET - .NET data provider for DuckDB
  • MySQL Connector - Connector/Net is a fully-managed ADO.NET driver for MySQL
  • Npgsql - .NET data provider for PostgreSQL
  • MongoDB - Official MongoDB C# driver
  • 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

Decompilation

  • dnSpy - open-source .NET assembly browser, editor, decompiler and debugger
  • dnSpyEx - Unofficial revival of dnSpy
  • ILSpy - ILSpy is the open-source .NET assembly browser and decompiler
  • 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]

Deployment

  • 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

DirectX

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

Desktop

  • Sucrose Wallpaper Engine - Sucrose is a versatile wallpaper engine that brings life to your desktop with a wide range of interactive wallpapers.

Distributed Computing

  • .NEXT Raft - Raft implementation for .NET and ASP.NET Core that allows to build clustered microservices powered by distributed consensus and replication
  • 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 available 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, 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.
  • protoactor-dotnet - Proto Actor - Ultra fast distributed actors for Golang and C#

DLR

Documentation

E-Commerce and Payments

Emulators

  • Blzhawk - BizHawk is a multi-system emulator written in C#. BizHawk provides nice features for casual gamers such as full screen, and joypad support in addition to full rerecording and debugging tools for all system cores.

Environment Management

  • Dotnet CLI - The cross-platform .NET Core command-line toolchain utility.

ETL

  • Cinchoo ETL - ETL Framework for .NET (Read / Write CSV, Flat, Xml, JSON, Key-Value formatted files)

Event aggregator and messenger

  • Mediator.Net - A simple mediator for .NET for sending command, publishing event and request response with pipelines supported
  • MediatR - Simple, unambitious mediator implementation in .NET
  • EventFlow - EventFlow is an Async/await first CQRS and Event Sourcing DDD framework for .NET

Exceptions

Extensions

Feature management

  • Microsoft.FeatureManagement - This library provides a way to develop and expose application functionality based on feature flags. It enables scenarios like new feature rollouts and A/B testing for experimentation purposes. It also provides integration with common .NET coding patterns and ASP.NET Core.

Functional 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.
  • MoreLinq - Provides extra methods to LINQ to Objects.

Game

  • MonoGame - One framework for creating powerful cross-platform games
  • FNA - FNA is an XNA4 reimplementation that focuses solely on developing a fully accurate XNA4 runtime for the desktop
  • Duality - Duality is a 2D game development framework. Focused on modularity, comes with a visual editor.
  • Stride Game Engine - Stride Game Engine 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, Oculus Rift, Vuforia, Cardboard, Leap Motion and much more. [Free][Proprietary]
  • Nez - Nez is a free 2D-focused framework that works with MonoGame and FNA
  • BEPUphysics - BEPUphysics is a pure C# 3D physics library
  • osu!framework - A 2D application/game written with amazing games in mind.
  • DotRecast - A port of Recast & Detour, navigation mesh toolset for games, Unity3D, servers, C#
  • Foster - Foster is a small cross-platform 2D game framework in C#.
  • Friflo.Engine.ECS - High-performance C# ECS with simple API. Supports .NET, WASM/WebAssembly, Native AOT, Unity, Godot, MonoGame, ...

GIS

  • NetTopologySuite A .NET GIS solution that is fast and reliable for the .NET platform
  • OsmSharp - C# library to work with OpenStreetMap (OSM) data. Provides reading, writing and route-planning for OSM data.
  • GeoJSON.NET - .Net library for GeoJSON types & corresponding Json.Net (de)serializers
  • CoordinateSharp - Easily parse or convert coordinate formats and calculate location based solar/lunar information.
  • DEM Net Elevation API - .Net library for Digital Elevation Models, allows 3D terrain generation in glTF / STL format.

Git Tools

Graphics

  • 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
  • Aspose.Drawing - Fully managed, cross-platform, complete 2D graphic library for drawing text, geometries, and images, with System.Drawing compatible API. [$]
  • ScottPlot - A plotting library to interactively displays large datasets. Line plots, bar charts, pie graphs, scatter plots, and more. It supports WinForms, WPF, Avalonia, Console.
  • LiveCharts2 - Simple, flexible, interactive & powerful charts, maps, and gauges for .Net. LiveCharts2 supports WPF, WinForms, Xamarin, Avalonia, WinUI, UWP.
  • Helix Toolkit - Helix Toolkit is a collection of 3D components for .NET
  • AssimpNet - A cross-platform .NET Standard wrapper for the Open Asset Importer ("Assimp"). The library enables importing, processing, and exporting of 3D models for rendering in graphics/game applications. Over 40 formats are supported for importing (e.g. OBJ, FBX, GLTF, 3DS, Collada) and a subset of those formats can be exported to (e.g. OBJ, GLTF, 3DS, Collada). Mesh processing features allow for mesh data to be generated or optimized for real-time rendering.
  • Silk.NET - A cross-platform, high-performance, low-level .NET Standard wrapper for many advanced APIs such as OpenGL, OpenCL, OpenAL, OpenXR, Assimp, GLFW, as well as many others. In addition to wrapping over Native APIs, it also comes with its own Windowing and Input abstraction. This makes game and application development with Silk.NET a breeze, and has pretty much everything a 3D application developer would need.
  • Veldrid - A low-level, portable graphics and compute library for .NET
  • VectSharp - .NET library to create vector graphics and text, and then export it to PDF, SVG and raster image formats.

GraphQL

  • GraphQL.NET - Implementation of Facebook's GraphQL in .Net
  • HotChocolate - GraphQL server compatible to all GraphQL compliant clients like Strawberry Shake, Relay, Apollo Client, and various other clients and tools.
  • EntityGraphQL - library to build a GraphQL API on top of data model with the extensibility to easily bring multiple data sources together in the single GraphQL schema (EF is not a requirement - any ORM working with LinqProvider or an in-memory object will work).
  • ZeroQL - high-performance C#-friendly GraphQL client. It supports Linq-like syntax. It doesn't require Reflection.Emit or expressions. As a result, the runtime provides performance very close to a raw HTTP call.

GUI

  • HandyControl - Contains some simple and commonly used WPF controls
  • MahApps.Metro - Toolkit for creating Metro-styled WPF apps
  • MaterialDesignInXamlToolkit - Toolkit for creating Material Design styled WPF apps
  • Eto.Forms - Cross-platform GUI framework for desktop and mobile applications in .NET and Mono
  • Fluent.Ribbon - Fluent Ribbon Control Suite is a library that implements an Office- and Windows 8-like Ribbon for WPF.
  • .NET MAUI - Build native UIs for iOS, Android, Windows, and macOS 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
  • 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.
  • Avalonia - A multi-platform .NET UI framework (formerly known as Perspex).
  • Windows UI Library - The Windows UI Library (WinUI) provides official native Microsoft UI controls and features for Windows UWP apps.
  • Bunifu UI Framework - Carefully crafted Winforms controls and components for creating stunning modern application UI. [$]
  • Ookii.Dialogs.Wpf - Enable WPF applications to access common Windows dialogs such as task dialogs, credential dialog, progress dialog, folder browser dialog, and more
  • Ookii.Dialogs.WinForms - Enable Windows Forms applications to access common Windows dialogs such as task dialogs, credential dialog, progress dialog, folder browser dialog, and more
  • UNO Platform - The only platform for building native mobile, desktop and WebAssembly with C#, XAML from a single codebase. Open source and professionally supported. Website: platform.uno

HTML and CSS

HTTP

  • RestSharp - Simple REST and HTTP API client for .NET
  • Flurl - Fluent, portable, testable REST/HTTP client library
  • Refit - The automatic type-safe REST library for Xamarin and .NET
  • WebApiClient An open source project based on the HttpClient. You only need to define the c# interface and modify the related features to invoke the client library of the remote http interface asynchronously.
  • Apizr Refit based web api client, but resilient (retry, connectivity, cache, auth, log, priority, etc...).
  • Fluxzy.Core - A fully managed and fully streamed Man-On-The-Middle library to intercept, record and alter HTTP/1.1, H2, websocket traffic over plain or secure channels.

IDE

  • Visual Studio Community - A full-featured IDE
  • Waf DotNetPad - A simple and fast code editor that makes fun program with C# or Visual Basic.
  • Visual Studio Code - Excellent open source editor from Microsoft, based on Electron.
  • 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
  • RoslynPad - A simple C# editor based on Roslyn and AvalonEdit.
  • Consulo - A cross-platform IDE with C# & Java support, fork of IntelliJ IDEA Community Edition
  • vvvv A visual live-programming environment for .NET [Free for OSS]

Image Processing

  • ImageWizard - Image processing webservice based on ASP.NET Core and ImageSharp / SkiaSharp / SvgNet / DocNET
  • ImageResizer - Add commands to image URLs to get altered versions in milliseconds. Resizing, editing etc of images in real-time.
  • ImageSharp - Fully managed cross-platform library for processing of image files.
  • MagicScaler - High-performance image processing pipeline for .NET, focused on making complex imaging tasks simple.
  • MetadataExtractor - Extracts Exif, IPTC, XMP, ICC and other metadata from image files.
  • Emgu CV - Cross-platform .NET wrapper for the OpenCV library.
  • SimpleITK - A simplified path to Insight. Open-source multi-dimensional image analysis in Python, R, Java, C#, Lua, Ruby, TCL and C++. Developed by the Insight Toolkit community for the biomedical sciences and beyond.
  • Magick.NET - .NET wrapper for the ImageMagick library.
  • OpenCvSharp - Cross platform wrapper of OpenCV for .NET Framework.
  • PixelViewer - Cross-platform (Windows/macOS/Linux) image viewer which supports reading raw Luminance/YUV/RGB/ARGB/Bayer pixels data from file and rendering it. 10/16-bit YUV and viewing image frame sequence are also supported (v1.99+).
  • Colourful - Open source .NET library for working with color spaces.
  • Unicolour - Colour conversion, interpolation, and comparison for .NET.

Install tools

  • Wix Toolset - The most powerful set of tools available to create your Windows installation experience
  • 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.
  • Onova - An unopinionated auto-update framework for desktop applications.

Interactive programming

  • .NET Interactive - .NET Interactive takes the power of .NET and embeds it into your interactive experiences.

Internationalization

  • MessageFormat.NET - ICU MessageFormat implementation in .NET lets you write contextual UI messages (PCL library)
  • ResX Resource Manager - The most popular free tool to localize all kind of applications with resx-based resources.

Interoperability

  • CppSharp - Tools to surface C++ APIs to C#
  • pythonnet - Python and .NET interop framework
  • pinvoke - A library containing P/Invoke code for latest Windows OS.
  • Pyrolite - This library allows your Java or .NET program to interface very easily with the Python world. It uses the Pyro protocol to call methods on remote objects.

IoC

  • Autofac - An addictive .NET IoC container
  • DryIoc - Simple, fast all fully featured IoC container.
  • Ninject - The ninja of .NET dependency injectors
  • Spring.Net - Spring.NET is an open source application framework that makes building enterprise .NET applications easier
  • Lamar - A fast IoC container heavily optimized for usage within ASP.NET Core and other .NET server side applications.
  • LightInject - A ultra lightweight 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 NET applications.
  • Scrutor - Assembly scanning extensions for Microsoft.Extensions.DependencyInjection.
  • VS MEF - Managed Extensibility Framework (MEF) implementation used by Visual Studio.
  • Stashbox - A lightweight, portable dependency injection framework for .NET based solutions.

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.
  • YantraJS - JavaScript Runtime (Similar to NodeJS) for .NET Standard, compiles JavaScript to IL, support for many ES6 features, generators, CommonJS modules, CSX modules and expression compiler.

Logging

  • 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
  • Rollbar.NET - Simplifies real-time remote error monitoring while using Rollbar.com. Open-source Rollbar Notifier SDK for any .NET-based technology stack. The SDK that can be used in any application built on the following .NET versions: .NET Core 2.0+, .NET Standard 2.0+, .NET Full Framework 4.5.1+, Mono, Xamarin, and, in general, any implementation of the .NET Standard 2.0+. It simplifies building data payloads based on exception data, tracing data, informational messages, and telemetry data and sends the payloads to the Rollbar API for remote monitoring and analysis of the hosting application's behavior. [Connects to Proprietary Service] [Free Tier]
  • Sentry - .NET SDK for Sentry Open-source error tracking that helps developers monitor and fix crashes in real time..
  • 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
  • ULogViewer - Cross-Platform (Windows/macOS/Linux) Universal Log Viewer which supports reading and parsing various type of logs. You can also define your own profile to parse and show logs.
  • 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]
  • elmah.io - Cloud logging for .NET web applications using ELMAH. Find bugs before you go live. Powerful search, API, integration with Slack, GitHub, Visual Studio and more. [Free for OSS] [$]
  • BugSnag - Logs errors. Includes useful diagnostic info like stack trace, session, release, etc. Has a free tier. [Free for OSS][$]
  • ZeroLog - ZeroLog is a zero-allocation .NET logging library. It provides basic logging capabilities to be used in latency-sensitive applications, where garbage collections are undesirable.
  • AutoLoggerMessage - A source generator that automatically migrates all logging calls to high-performant LoggerMessage version.

Machine Learning and Data Science

  • Infer.NET - A framework for running Bayesian inference in graphical models. It can also be used for probabilistic programming.
  • Catalyst Cross-platform Natural Language Processing (NLP) library inspired by spaCy, with pre-trained models, out-of-the box support for training word and document embeddings, and flexible entity recognition models. Part of the SciSharp Stack
  • FsLab - A collection of data science and machine learning libraries for F# and .NET
  • GeneticSharp - Multi-platform genetic algorithm library for .NET Core and .NET Framework. The library has several implementations of GA operators, like: selection, crossover, mutation, reinsertion and termination.
  • ML.NET - Cross-platform open-source machine learning framework which makes machine learning accessible to .NET developers.
  • F# Data - F# type providers for accessing XML, JSON, CSV and HTML files (based on sample documents) and for accessing WorldBank data
  • SciSharp STACK - A rich machine learning ecosystem for .NET created by porting the most popular Python libraries to C#.

Markdown Processors

  • F# Formatting - Tools for documenting F# and C# projects. The library contains extensible Markdown parser as a core component.
  • markdig - A fast, powerful, CommonMark compliant, extensible Markdown processor for .NET.

Mail

  • MailKit - A complete cross-platform mail stack including IMAP, POP3, SMTP, authentication and more. Built on top of MimeKit.
  • MailKitSimplified - A fully-featured fluent wrapper for MailKit that makes sending and receiving emails as simple as possible.
  • 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.
  • StrongGrid - Client for SendGrid's v3 API. Not only allows you to send emails, but also allows you to bulk import contacts, manage lists and segments, create custom fields for your lists, etc. Also includes a parser for SendGrid Webhooks.

Mathematics

  • MathNet - Math.NET is an open source initiative to build and maintain toolkits covering fundamental mathematics, targeting advanced but also every day needs of .NET developers
  • Microsoft Automatic Graph Layout - A set of tools for graph layout and viewing.
  • ALGLIB - ALGLIB is a cross-platform numerical analysis and data processing library. It supports several programming languages (C++, C#, Delphi) and several operating systems (Windows and POSIX, including Linux) [Proprietary] and [Free Edition]
  • GeometRi - Simple and lightweight computational geometry library for .Net
  • Rationals - Implementation of rational number arithmetic for .NET with arbitrary precision.
  • MKL.NET - A simple cross platform .NET API for Intel MKL.
  • AngouriMath - An open-source symbolic/computer algebra library, made primarily for C# and F#. It covers a range of features and might be considered as an alternative to SymPy in .NET.
  • WPF-Math - a .NET library for rendering mathematical formulae using the LaTeX typesetting style, for the WPF framework
  • Jodo.Numerics - Provides extra number types (such as fixed-point and non-overflowing numbers) with full support for operators, math, string-parsing etc. Extensively tested, and cross-platform compatible.

Media

  • CSCore - An advanced audio library, supporting playback/recording, decoding/encoding and processing of audio data in realtime (effects, visualizations, ...).
  • TagLib# - TagLib# (aka taglib-sharp) is a library for reading and writing metadata in media files, including video, audio, and photo formats
  • LibVLCSharp - Xamarin bindings for libvlc, the multimedia framework powering the VLC applications made by VideoLAN.
  • NAudio - Playback, decode and encode audio in a variety of file formats such as MP3, MP4, WAV, AIFF, Speex, etc.
  • Xabe.FFmpeg - .NET Standard wrapper for FFmpeg. It allows to process media without know how FFmpeg works, and can be used to pass customized arguments to FFmpeg from C# application. [$]

Metrics

  • Foundatio - A common interface with in-memory, Redis, StatsD, and Metrics.NET implementations.

Micro Framework

Minification

  • 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.
  • CompressedStaticFiles - Send compressed static files to the browser without having to compress on demand, also has support for sending more advanced image formats when the browser indicates that i has support for it.

Misc

  • CSScript - CS-Script is a CLR based scripting system which uses C# 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
  • RecordParser - Library to help reading and writing CSV and Flat files with zero heap allocation.
  • ConsoleTableExt - Fluent library to create table for .Net console application.
  • FluentValidation - A small validation library for .NET that uses a fluent interface and lambda expressions for building validation rules.
  • Validot - Validot is a performance-first, compact library for advanced model validation. Using a simple declarative fluent interface, it efficiently handles classes, structs, nested members, collections, nullables, plus any relation or combination of them. It also supports translations, custom logic extensions with tests, and DI containers.
  • 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. [$]
  • LINQPad.QueryPlanVisualizer - View SQL Server and Postgres query plans directly inside LINQPad.
  • Polly - Express transient-exception-handling and resilience policies such as Retry, Wait-and-Retry, Circuit Breaker, and Bulkhead Isolation in a fluent manner. Fully thread-safe and full async support. (4.0 / 4.5 / .NET Core / .NET Standard / Xamarin).
  • 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
  • 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).
  • Enums.NET - Enums.NET is a high-performance type-safe .NET enum utility library
  • YoutubeExplode - Ultimate library for extracting metadata and downloading Youtube videos and playlists.
  • DeviceId - Generate a 'device ID' that can be used to uniquely identify a computer.
  • DeviceDetector.NET - The Universal Device Detection library will parse any User Agent and detect the browser, operating system, device used (desktop, tablet, mobile, tv, cars, console, etc.), brand and model.
  • NaturalSort.Extension - Extension method for StringComparer that adds support for natural sorting (e.g. "abc1", "abc2", "abc10" instead of "abc1", "abc10", "abc2").
  • Coravel Near-zero config .NET Core library that makes Task Scheduling, Caching, Queuing, Mailing, Event Broadcasting (and more) a breeze!
  • Build Versioning - Simple build versioning for .NET, powered by Git tags
  • SystemTextJson.JsonDiffPatch - High-performance, low-allocating JSON object diff and patch extension for System.Text.Json. Support generating patch document in RFC 6902 JSON Patch format.
  • dotnet-exec - A command-line tool for executing C# program without a project file, and you can have your custom entry point other than Main method.

MQTT

  • HiveMQtt - The HiveMQ C# MQTT client for .NET
  • MQTTNet - A high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker).

MVVM

  • Community Toolkit - Collection of control & helper libraries and samples for various .NET technologies. Contains modern MVVM library, supported by Microsoft. Includes Windows Community Toolkit, MAUI Community Toolkit, and Dotnet Community Toolkit.
  • 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.
  • 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.
  • 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.
  • Prism - A cross-platform desktop and mobile MVVM development framework.
  • Win Application Framework (WAF) - A lightweight Framework that helps you to create well structured WPF and UWP 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
  • Toms Toolbox - Visual Composition framework to easily build modularized MVVM applications based on the Managed Extensibility Framework (MEF).
  • MVVM Dialogs - Framework simplifying the concept of opening dialogs from a view model when using MVVM in WPF or UWP.

Networking

  • NetCoreServer - Ultra fast and low latency asynchronous socket server & client C# .NET Core library with support TCP, SSL, UDP, HTTP, HTTPS, WebSocket protocols and 10K connections problem solution (NETStandard).
  • SharpPcap - Fully managed, cross platform (Windows, Mac, Linux) .NET library for capturing packets from live and file based devices.

Object to object mapping

Office

  • ExcelDna - ExcelDna makes it easier to create and deploy Excel Add-Ins using C#, F# or VB .NET
  • ClosedXML - ClosedXML makes it easier for developers to create Excel 2007/2010 files
  • OfficeIMO - OfficeIMO makes it easier for developers to create/modify Word (docx) files without having Microsoft Word or Office installed
  • NPOI - This project is the .NET version of POI Java project at https://poi.apache.org/.
  • EPPlus - EPPlus is a .NET library that reads and writes Excel 2007/2010 files using the Open Office XML format (xlsx). [Source Available] [Free Tier]
  • Open XML SDK - The Open XML SDK provides open-source libraries for working with Open XML Documents (DOCX, XLSX, and PPTX).
  • DocX - DocX is a .NET library that allows developers to manipulate Word 2007/2010/2013 files, it does not require Microsoft Word or Office to be installed.
  • ExcelDataReader - Lightweight and fast library written in C# for reading Microsoft Excel files (2.0-2007).
  • NetOffice - .NET wrapper assemblies for Microsoft Office applications.
  • GemBox.Bundle - A package of .NET components that enable fast, simple and efficient processing of office files (Excel, Word, PowerPoint, PDF and emails). [$]****[Free Lite versions]
  • Outlook Redemption - Library to work with the Outlook Object Model and (Extended) MAPI. Supports Outlook 98 - 2019. Work with objects/mails/accounts/folders in Exchange and Outlook. [$]
  • ShapeCrawler - A fluent API for the processing of PowerPoint presentations without Microsoft Office installed.
  • MiniExcel - A micro Excel helper avoids OOM and high performance to create/mapping/template-fill-data.
  • Toxy - .NET text extraction framework supports a few file formats
  • Syncfusion .NET Word Framework - A high-performance .NET Word framework without Microsoft Office or interop dependencies. Create, read, and edit Word documents seamlessly. Utilize advanced editor components for easy viewing, editing, and printing. Effortlessly convert Word documents to PDF, HTML, RTF, ODT, and EPUB formats with powerful conversion APIs. [$] [Free for Individuals and Small Businesses]
  • Syncfusion .NET Excel Framework - A high-performance .NET Excel framework without Microsoft Office or interop dependencies. Create, read, and edit Excel documents seamlessly. Utilize Spreadsheet controls for creating, editing, and viewing easily. Effortlessly convert Excel files to PDF, images, and more with powerful conversion APIs. [$] [Free for Individuals and Small Businesses]
  • Syncfusion .NET PowerPoint Framework - A high-performance .NET PowerPoint framework without Microsoft Office or interop dependencies. Create, read, and edit PowerPoint files seamlessly. Effortlessly convert PowerPoint files to PDFs and images with powerful conversion APIs. [$] [Free for Individuals and Small Businesses]

OpenAI

ORM

  • Entity Framework Core - Object-relational mapper that enables .NET developers to work with relational data using domain-specific objects
  • EntityFramework.Exceptions - Use typed Exceptions for Entity Framework Core when your SQL query violates database constraints in SqlServer, MySql, PostgreSQL or SQLite
  • EntityFrameworkCore.SqlServer.SimpleBulks - Simple library that can help to sync a large number of records in-memory into the database. Lambda Expression is supported.
  • EFCore.BulkExtensions - Entity Framework Core Bulk Extensions for super fast (BulkCopy) CRUD ops + SaveChanges on multiple DBs: SQL, PG, My, Lite.
  • Dapper - A simple object mapper for .NET by StackExchange
  • Dapper.FastCRUD - The fastest micro-ORM extension for Dapper
  • DapperQueryBuilder - Dapper Query Builder using String Interpolation and Fluent API
  • SqlSugar - Another ORM library supports many RDBMS including MySql, SqlServer, Sqlite, Oracle, Postgresql
  • FreeSql - a convenient ORM in dotnet, supports MySql, SqlServer, PostgreSQL, Oracle, Sqlite, Firebird, 达梦, 人大金仓, 神舟通用, 翰高 and Access.
  • 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] [$]
  • LINQ to DB - The fastest LINQ database access library offering a simple, light, fast, and type-safe layer between your POCO objects and your database.
  • PetaPoco - A tiny ORM-ish thing for your POCOs
  • NPoco - Simple microORM that maps the results of a query onto a POCO object. Based on Schotime's branch of PetaPoco
  • LLBLGen Pro - Entity Modeling solution for Entity Framework, NHibernate, Linq to SQL and its own ORM framework: LLBLGen Pro Runtime Framework. [$][Free Lite version]
  • Insight.Database - Insight.Database is a fast, lightweight, micro-ORM for .NET
  • RepoDb - A hybrid ORM library for .NET.
  • MongoFramework - An "Entity Framework"-like interface for MongoDB
  • Friflo.Json.Fliox - High performane ORM for Sqlite, MySql, SqlServer, PostgreSQL & NoSQL. Provides server with REST, GraphQL & WebSocket / PubSub API.

Package Management

PDF

  • QPdfSharp - A C# wrapper written around QPdf to allow for easy PDF manipulation that is tested for both linux and windows. QPdf is one of the only libraries capable of PDF linearization, and this wrapper ensures you keep up to date with the underlying improvements.
  • Cloudmersive PDF - Cloudmersive PDF is a native .NET Framework and .NET Core NuGet library and API service that can create, modify, encrypt or convert PDF documents at high scale and fidelity; and is free to use with no expiration [Free]
  • Docotic.Pdf - PDF library to create, read, edit, draw, and print PDF documents in .NET and .NET Core applications. 100% managed, without unsafe blocks. [$] [Free for OSS]
  • IText - iText is a PDF library that allows you to CREATE, ADAPT, INSPECT and MAINTAIN documents in the Portable Document Format (PDF)[$] [Free for OSS]
  • Pdfium.Net SDK - Advanced C# PDF library for render, create, edit, merge, split, print, and view PDFs. Open source PDF Viewer is available on GitHub. A NuGet package is also available for easy inclusion into your projects.[$]
  • PdfPig - Read and create and extract text and other content from PDFs in C# (port of PdfBox)
  • QuestPDF - QuestPDF is a modern and battle-tested library that can help you with generating PDF documents by offering friendly, discoverable and predictable C# fluent API. [Source Available] [Free for OSS]
  • Kevsoft.PDFtk - A wrapper to drive the awesome pdftk binary, which can fill PDF forms, get field information, concatenate multiple documents or pages, split documents, add or replace stamps, and can attach files to or download files from pages.
  • IronPDF - High-performance C# PDF library with compatibility for various .NET versions, HTML to PDF conversion, content page conversion, file format support (e.g., DOCX, RTF, MD), responsive layouts, and robust PDF capabilities features ranging from compability, generating PDFs, formatting PDFs, and editing PDFs. [$] [Free trial available]
  • Syncfusion .NET PDF Framework - A high-performance .NET PDF framework with no Adobe dependencies. Create, read, and edit PDF files seamlessly. Utilize PDF viewer controls for easy viewing, reviewing, and printing. Effortlessly convert HTML, Word, Excel, PowerPoint files, and images to PDF with powerful conversion APIs. [$] [Free for Individuals and Small Businesses]

Profiler

  • MiniProfiler - A simple but effective mini-profiler for ASP.NET websites

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.
  • FluentFTP - An FTP and FTPS library for .NET, optimized for speed. Provides extensive FTP commands, file uploads/downloads and FTP proxies.
  • SharpSnmpLib - An open source SNMP implementation for .NET/Mono/Xamarin. Version 1, 2c, and 3 are supported.
  • DnsClient.NET - A simple yet very powerful and high performant open source library for the .NET Framework to do DNS lookups.
  • Tecan SiLA2 SDK - A library and code generator to develop SiLA2 clients and servers.

Push Notifications

Query Builders

  • SqlKata - Elegant SQL query builder, that supports complex queries, joins, sub queries, nested where conditions, vendor engine targets and more
  • InterpolatedSql - SQL Builder using String Interpolation and Fluent API

Queue

  • CAP - An EventBus with local persistent message functionality for RabbitMQ or Kafka.
  • Cap.Outbox - Implementation of the Outbox pattern and OnceExecutor service that guarantees idempotence: the operation will be performed once
  • NServiceBus - The most popular service bus for .NET
  • 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
  • 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.
  • Confluent's .NET Client - Confluent's .NET Client for Apache Kafka.
  • Foundatio - A common interface with in-memory, Redis and Azure implementations.
  • Brighter - Command Dispatcher, Processor, and Distributed Task Queue https://www.goparamore.io/
  • Silverback - A simple but feature-rich message bus for .NET core (supports Kafka, RabbitMQ and MQTT).
  • SlimMessageBus - Lightweight message bus with transports for popular messaging systems (Kafka, Redis, Azure Service Bus, and others) and in-memory communication.
  • AsyncMonolith - Facilitates simple asynchronous messaging in dotnet apps.

RPC

  • gRPC An RPC library and framework for .NET Core. Read more about it on Docs Microsoft
  • gRPCurl - gRPCurl is a command-line tool that lets you interact with gRPC servers. It's basically curl for gRPC servers.
  • gRPC UI - gRPC UI is a command-line tool that lets you interact with gRPC servers via a browser. It's sort of like Postman, but for gRPC APIs instead of REST.

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 operators
  • Dynamic Data - Reactive Extensions (Rx) for collections

Real-time Communications

  • SIPSorcery - A cross platform C# .NET library supporting SIP, VoIP and WebRTC.

Regular Expression

Scheduling

  • NCrontab - Class library for parsing & formatting crontab expressions as well as calculating occurrences of time based on a crontab schedule
  • NCrontab.Scheduler - Simple task scheduler library for scheduling NCrontab-based tasks
  • QuartzNet - Quartz Enterprise Scheduler .NET
  • Hangfire - An easy way to perform fire-and-forget, delayed and recurring tasks inside .NET apps
  • DurableTask - This framework allows users to write long running persistent workflows in C# using the async/await capabilities.
  • Workflow Core - Lightweight embeddable workflow engine

SDK and API Clients

  • AWS SDK - The AWS SDK for .NET enables .NET developers to easily work with Amazon Web Services
  • Azure PowerShell - A set of PowerShell cmdlets for developers and administrators to develop, deploy and manage Microsoft Azure applications
  • Countly SDK for Windows - Windows SDK for Countly analytics and marketing platform for product and marketing managers
  • Octokit.NET - A GitHub API client library for .NET
  • Dropbox.NET - Official .NET SDK for the Dropbox API
  • Getty Images API SDK - SDK for the Getty Images and iStock APIs

Search

  • Elasticsearch .NET - Elasticsearch.Net & NEST
  • SolrNet - Solr client for .NET
  • Lucene.net - Lucene.Net is a port of the Lucene search engine library, written in C# and targeted at .NET runtime users

Serialization

SMS and Phone calls

  • Twilio-csharp - A C#/.NET Library for sending and receiving phone calls and text messages with Twilio.

State machines

  • Stateless - Create state machines and lightweight state machine-based workflows directly in .NET code

Static Site Generators

  • Sandra.Snow - Jekyll-inspired static site generation for .NET

Strong Naming

Style Guide

Template Engine

  • RazorLight - Open source template engine based on Microsoft's Razor parsing engine supporting .NET Standard 2.0
  • DotLiquid - C# port of the Ruby Liquid templating language
  • Scriban - A fast, powerful, safe and lightweight text templating language and engine for .NET
  • Morestachio - A full sized {{mustache}} like template engine with focus on extendibility.
  • Fluid - Fluid is an open-source .NET template engine based on the Liquid template language.
  • SmartFormat - A lightweight text templating library written in C# which can be a drop-in replacement for string.Format
  • Handlebars.Net - A real .NET Handlebars engine

Testing

  • ArchUnitNET - Simple library for checking the architecture of C# code with a fluent API.
  • AutoFixture - AutoFixture is an open source framework for .NET designed to minimize the 'Arrange' phase of your unit tests
  • BDTest - A behaviour driven testing and reporting framework!
  • 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 [Source Available] [Free for OSS]
  • FsCheck - Random Testing for .NET.
  • 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
  • NBomber - Very simple load testing framework for Pull and Push scenarios. It's 100% written in F# and targeting .NET Core and full .NET Framework.
  • NCrunch - An automated continuous & concurrent testing tool for Visual Studio. [$]
  • NFluent - NFluent is an assertion library which aims to fluent your .NET TDD experience.
  • NSubstitute - A friendly substitute for .NET mocking frameworks
  • NUnit - A unit-testing framework for all .NET languages
  • Testcontainers - A library to support tests with throwaway instances of Docker containers for all compatible .NET Standard versions.
  • SecTester - SecTester is a new tool that integrates Bright enterprise-grade scan engine directly into your integration or e2e tests. [Proprietary] [Free]
  • Shouldly - Shouldly is an assertion framework which focuses on giving great error messages when the assertion fails while being simple and terse.
  • Snapshooter - A snapshot testing tool for .NET Core and .NET Framework
  • Stryker.NET - Mutation testing for .NET Core projects
  • xUnit.net - 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
  • Expecto - A smooth testing framework for F# with tests as values. Unit testing, property based testing, performance testing and stress testing.
  • ReportPortal - AI-powered Test Automation Dashboard. Acquire, aggregate and analyze test reports to ascertain release health.
  • Compare-Net-Objects - Perform a deep compare of any two .NET objects using reflection. Shows the differences between the two objects.
  • Verify - Verification tool to enable simple approval of complex models and documents.
  • CsCheck - Random testing library for C#. Including concurrency, causal profiling, regression and performance testing.

Tools

  • Downloader - Fast and reliable multipart downloader with asynchronous progress events for .NET applications.
  • Fiddler - The free web debugging proxy for any browser, system or platform [Proprietary] [$] [Free Trial available]
  • 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.
  • 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.
  • 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 version available][Proprietary]
  • Mockaco - API mock server with fast setup, useful to simulate HTTP responses, leveraging ASP.NET Core features, built-in fake data generation and C# scripting engine powered by Roslyn scripting API.
  • 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.
  • Fake JSON Server - Fake REST API for prototyping or as a CRUD Back End. No need to define types, uses dynamic typing. Data is stored to a single JSON file. Has authentication, WebSocket notifications, async long running operations, random generation for errors/delays and experimental GraphQL support.
  • NETworkManager - A powerful tool for managing networks and troubleshoot network problems!
  • YARP - YARP is a reverse proxy toolkit for building fast proxy servers in .NET using the infrastructure from ASP.NET and .NET.
  • JSON Formatter and Validator - A blazing fast JSON formatter and validator that won't share JSON with a server.
  • CSharpier - An opinionated code formatter for c# that is based on the Prettier printing process.
  • UnitsNet - Makes life working with units of measurement just a little bit better.
  • Another Redis Desktop Manager - A faster, better and more stable redis desktop manager [GUI client], compatible with Linux, Windows, Mac. What's more, it won't crash when loading massive keys.
  • OctaneEngine - A high performance multipart downloader with many features such as pause/resume support, asynchronous progress, and throttling.
  • FastCloner - Fast deep cloning library for .NET 8+. Zero-config, works out of the box.
  • STranslate - STranslate is a ready-to-go translation ocr tool developed with WPF.

Trading

UI Automation

  • Atata - Automated web testing full featured framework based on Selenium WebDriver.
  • Managed Windows API - Introspect and automate third-party Windows / VC++ applications without needing its source code.
  • FlaUI - FlaUI is a .NET library which helps with automated UI testing of Windows applications (Win32, WinForms, WPF, Store Apps, ...).
  • PuppeteerSharp - Puppeteer Sharp is a .NET port of the official Node.JS Puppeteer API.
  • PuppeteerSharp.Contrib - Contributions to Puppeteer Sharp that provides a convenient way to write readable and robust browser tests.

Visual Studio Plugins

  • EFCore.Visualizer - View Entity Framework Core query plan directly in Visual Studio.
  • VsVIM - VIM in Visual Studio
  • Resharper - Developer Productivity Tool for Visual Studio [$]
  • Productivity Power Tools - A set of extensions to Visual Studio Professional (and above) which improves developer productivity.
  • Tabs Studio - Visual Studio tab manager with multiple tab rows, tab coloring and tab grouping. [$]
  • VSColorOutput - Color highlighting for Build, Find and Debug output windows. Custom match patterns and colors can be added.
  • Roslynator - A collection of 500+ analyzers, refactorings and fixes for C#, powered by Roslyn
  • SonarSource.sonarlint-visualstudio - SonarLint is a free, open source Visual Studio 2017, 2019 and 2022 extension that provides on-the-fly feedback to developers on new bugs and quality issues in C#, VB.NET, C/C++, TypeScript and JavaScript.

Web Browsers

  • CefSharp - HTML5, CSS3 and JS web browser powered by Chromium, for WinForms and WPF
  • SharpBrowser - A full featured .NET web-browser built using C# and CefSharp

Web Frameworks

  • ASP.NET [Core] - ASP.NET is a free web framework for building great web sites and applications
  • Coalesce - Coalesce is a framework for rapid-development of ASP.NET Core web applications.
  • CodeBehind Framework - Modern and powerful back-end framework under ASP.NET Core.
  • 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#.
  • DotVVM - MVVM framework for people who don't like to write JavaScript, with OWIN and ASP.NET Core support and a free extension for Visual Studio 2015 and 2017.
  • Giraffe - Functional (F#) ASP.NET Core micro framework for building rich web applications

Web Servers

  • EmbedIO - Web server built on Mono and cross-platform
  • GenHTTP - A lightweight, embeddable web server for quickly creating REST APIs
  • SimpleW - Simple Web Server, build your RestAPI, fast, lightweight and cross-platform.

WebSocket

  • 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
  • Crossertech - Provides a great set of tools for you to build real-time applications on the Microsoft.NET plattform and much more. [$]
  • Websocket.Client - A multiplatform wrapper over native C# class ClientWebSocket with built-in reconnection and error handling.

Windows Services

WPF

  • DeftSharp.Windows.Input - A simple keyboard/mouse event handler for Windows UI applications (WPF, MAUI, Avalonia)
  • Data Grid Extensions - Modular extensions for the WPF DataGrid control, like filtering, additional column events, extended star-size column behavior, and more...
  • Extended WPF Toolkit™ - A rich collection of controls, components and utilities for creating WPF applications
  • WPF - WPF is a .NET Core UI framework for building Windows desktop applications.

Parser Library

  • Pidgin - A lightweight, fast and flexible parsing library for C#, developed at Stack Overflow
  • Superpower - A C# parser construction toolkit with high-quality error reporting
  • CSLY - A light embedded C# lexer/parser generator.
  • Parakeet - A recursive descent parsing library with operator overloading for C#.

Source Generator

  • CodegenCS - Code Generation Toolkit where templates are written using plain C#. Command-line tool, MSBuild task, Visual Studio Extension, and Roslyn Source Generator.
  • M31.FluentAPI - Effortlessly generate fluent APIs for your C# classes.
  • Supernova.Enum.Generators - A C# source generator to create an enumeration class from an enum type. With this package, you can work on enums very, very fast without using reflection.

Other Lists

  • List of Automated Testing Tools and Frameworks for .NET - List of Automated Testing (TDD/BDD/ATDD/SBE) Tools and Frameworks for .NET
  • .NET-libraries-that-make-your-life-easier - Open Source .NET libraries that make your life easier
  • 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.
  • 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).
  • 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.
  • Awesome Roslyn - A curated list of awesome Roslyn books, tutorials, open source projects, analyzers, code fixes, and refactorings.
  • .NET Open Source Developer Projects - This community maintained list showcases .NET open source projects that are useful for any aspect of the development process.
  • Awesome Microservices .NET Core - A collection of awesome training series, articles, videos, books, courses, sample projects, and tools for Microservices in .NET Core.
  • dotnet-console-games - Game examples implemented in .NET console applications.
  • extra-awesome-dotnet - Sorted lists of awesome .NET repositories, with counts of stars, issues, and forks!

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