awesome-dotnet

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

C# Algorithms

A C# plug-and-play class-library project of standard Data Structures and Algorithms. It contains 35+ Data Structures and 30+ Algorithms designed as Object-Oriented isolated components

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

FastEndpoints

High-performance middleground between classic ASP.NET Core API controllers and Minimal APIs. Using a REPR ( ) pattern, this library eliminates the boilerplate and monolithic feel of controllers by improving colocation of code

Telegram.Bot

.NET Client for

TLSharp

It's a perfect fit for any developer who would like to send data directly to Telegram users or write own custom Telegram client

WTelegramClient

Automate a user account on Telegram, using the latest version of

NancyFx

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

Framework that makes it easy to build HTTP services that reach a broad range of clients, including browsers and mobile devices

API framework enabling rich data access by using the OData 3 protocol. Client libraries available for JavaScript and C#

Mobius: C# API for Spark

Mobius adds C# language binding to Apache Spark, enabling the implementation of Spark driver code and data processing operations in C#

ServiceStack

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

Nelibur

Nelibur is message based web service framework on the pure WCF. Nelibur simplifies creating high-performance and message-based web services and you certainly have all the power of the WCF

WebAPI Contrib

Collection of open source projects to help improve your work with ASP.NET Web API

Xamarin.Essentials provides developers with cross-platform APIs for their mobile applications

FFImageLoading - Fast & Furious Image Loading

This Library to load images quickly & easily on Xamarin.iOS, Xamarin.Android, Xamarin.Forms, Xamarin.Mac / Xamarin.Tizen and Windows (UWP, WinRT)

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

.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

Newbe.Claptrap

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

CoreFX

The corefx repo contains the library implementation (called "CoreFX") for .NET Core. It includes System.Collections, System.IO, System.Xml and many other components

CSLA .NET

business layer development framework

Mono

Open source ECMA CLI, C#, F#, VB and .NET implementation

Mono-Addins

Mono.Addins is a generic framework for creating extensible applications, and for creating add-ins which extend those applications

peasy

Peasy is a middle tier framework that offers an easy to use and flexible rules engine and was designed to address common challenges such as concurrency handling, transactional support, fault tolerance, threading, scalability, async and multiple client support, and easy testability, all without a huge learning curve!

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

HopFramework

HopFramework is a framework to create projects easily applying Domain Driven Design and a lot of patterns to delivery a better solution

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

silky

The Silky framework is designed to help developers quickly build a microservice development framework through simple code and configuration under the .net platform

.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

A small, fast, standards-compliant yet easily customizable implementation of an AIML (Artificial Intelligence Markup Language) based chatter bot in C#

Synthetic Intelligence Markup Language, a next generation Chatbot & Digital Assistant Language

Mpt-Instruct-DotNet-S

LLM that can generate and explain C# code (and its C# wrapper to run on consumer CPU with 5GB ram+, contains Console and Blazor sample projects)

LLamaSharp

C#/.NET Binding of llama.cpp, run LLaMA/GPT model using C# without having to compile lama.cpp

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

Cassette

Manages .NET web application assets (scripts, css and templates)

NodeAssets

Asset Manager for .NET that has live CSS updates using SignalR and can optionally leverage Node.js compilers

Bundle Transformer

Modular extension for . Its modules supports LESS, Sass, CoffeeScript, TypeScript, Mustache, Handlebars, Autoprefixer along with a bunch of different JS and CSS minifiers

Bundler

Compile & Minify Less/Sass/Stylus/Css/JS/CoffeeScript/LiveScript files. Integrates with MVC and ServiceStack

SquishIt

Lets you bundle some CSS and JavaScript

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

ASP.NET Identity

New membership system for ASP.NET applications

ASP.NET SAML

SAML authentication support for ASP.NET apps

Logibit Hawk

A F# authentication library

Helper library for identity & access control in .NET 4.5 and MVC4/Web API

Extensible OAuth2 and OpenID Connect provider framework

OAuth

A very lightweight library for generating OAuth 1.0a signatures written in C#

Stuntman is a library for impersonating users during development leveraging .NET Claims Identity

openiddict

Flexible and versatile OAuth 2.0/OpenID Connect stack for .NET

A fine-grained authorization system with .NET SDK

Write fine grained authorization policy in easy-to-read language, and have it compiled to native .NET code

Add SAML 2P support to your Duende IdentityServer

Add SAML 2P support to your OpenIddict

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

Nethermind

full Ethereum client in .NET Core

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#

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

in-memory data aggregation/OLAP library, pivot tables generation (render to HTML, exports), ASP.NET pivot builder control

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 for .NET

Foundatio

A common interface with in memory, Redis and hybrid implementations

Cashew

a .NET library for caching responses easily with an through an API that is simple and elegant yet powerful

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

LazyCache

A simple, developer friendly, in-memory thread-safe caching service. It leverages Microsoft.Extensions.Caching and Lazy to provide performance and reliability in heavy load scenarios

BitFaster.Caching

Thread-safe in-memory caches optimized for very high concurrent throughput, near optimal hit rate and low latency

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

Stream

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

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

Argu

Declarative CLI argument & XML configuration parser for F# applications

CliFx

Declarative framework for building command line interfaces

Typin

Simple to use declarative framework for interactive CLI applications and command line tools (direct mode) that has its roots in CliFx

clipr

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

CliWrap

Wrapper for command line interfaces

Colorful.Console

Colorful console output

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

CsConsoleFormat

.NET C# library for advanced formatting of console output

Docopt

Command-line interface description language that will make you smile

EntryPoint

Composable CLI Argument Parser for .NET Core & .NET Framework 4.5+

Fluent Command Line Parser

A simple, strongly typed .NET C# command-line parser library using a fluent easy to use interface

JustCli

That’s just a quick way to create your own command line tool

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

ReadLine

A GNU-Readline like library for .NET/.NET Core

RunInfoBuilder

A unique command line parser, utilizing object trees for commands

SharpNetSH

A simple netsh library for C#

spectre.console

A library that makes it easier to create beautiful console applications

Runtime

Mono and CoreCLR .NET runtimes, as well as the standard library and some higher level components like and

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

N2CMS

Open source, lightweight, code-first CMS able to seamlessly integrate into any MVC project

Orchard

Free, open source, community-focused project aimed at delivering applications and reusable components on the ASP.NET platform

Piranha CMS

Piranha is the fun, fast and lightweight .NET framework for developing cms-based web applications with an extra bite. It's built on ASP.NET MVC and Web Pages and is fully compatible with both Visual Studio and WebMatrix

Umbraco

Umbraco is a free open source Content Management System built on the ASP.NET platform

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.NET

Simple but full featured ASP.NET blog

Squidex

Open source headless CMS and content management hub

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

.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 is a static analyzer on guard of code quality, security (SAST), and code safety

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.Metrics

App Metrics is an open-source and cross-platform .NET library used to record and report metrics within an application and reports it's health. See the for me details

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 analyzes C# source code to enforce a set of style and consistency rules

Gendarme

Extensible rule-based tool to find problems in .NET applications and libraries

Metrics-Net

Capturing CLR and application-level metrics. So you know what's going on

AspNet.Metrics

Capturing CLR, application-level web request metrics. Middleware and extensions using Metrics-Net

BenchmarkDotNet

Powerful .NET library for benchmarking

Suite of continuous benchmarking tools designed to catch performance regressions in CI

Enhanced syntax highlighting for C# and some other "Visual" features

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

Write, compile and run C#, F# and VB code in the browser. The .Net equivalent of JSFiddle

Run C# code using different branches and versions of Roslyn, see the IL that was produced and examine the JIT's output

Examine the generated SQL for migrations and queries by writing 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

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

CIL (C#, VB.Net, F#) to CUDA compiler

IronScheme

R6RS Scheme compiler, runtime and many standard libraries

JSIL

CIL to JavaScript Compiler

Mond

A dynamically typed scripting language written in C# with a REPL, debugger, and simple embedding API

Mono-basic

Visual Basic Compiler and Runtime

Nemerle

Nemerle is a high-level statically-typed programming language for the .NET platform. It offers functional, object-oriented and imperative features. It has a simple C#-like syntax and a powerful meta-programming system

Netjs

.NET to TypeScript and JavaScript compiler. Portable Class Libraries work great for this. You can even pass EXEs

P

P is a language for asynchronous event-driven programming

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

Testura.Code

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

VisualFSharp

The Visual F# compiler and tools

Fable

F# to JavaScript Compiler

LinqOptimizer

An automatic query optimizer-compiler for Sequential and Parallel LINQ

Roslyn-linq-rewrite

Compiles C# code by first rewriting the syntax trees of LINQ expressions using plain procedural code, minimizing allocations and dynamic dispatch

Iron python

A python 2 implementation that is integrated with the dot net framework

Amplifier.NET

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

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)

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

DotNetZip.Semverd

An open-source project that delivers a .NET library for handling ZIP files, and some associated tools. (fork of )

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

Snappy compression library for .NET baked on P/Invoke

Snappy.Sharp

An implementation of Google's Snappy compression algorithm in C#

AgileConfig

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

Ready to work, extensible and developer-friendly build server — out of the box

Continuous Integration and Deployment, Hosted Package Repository for NuGet, NPM, Bower and VSIX

.NET Continuous Integration and Deployment as a service

Together with the .Net System.Security.Cryptography, the reference implementation for cryptographic algorithms on the CLR

HashLib is a collection of nearly all hash algorithms you've ever seen, it supports almost everything and is very easy to use

libsodium for .NET - A secure cryptographic library

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

StreamCryptor

Stream encryption & decryption with libsodium and protobuf

SecurityDriven.Inferno

.NET crypto library. Professionally audited

CryptoNet

.NET simple crypto library. Native c#

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

SliccDB

Lightweight Embedded (In-Memory) Graph Database for .net

RocksDB

C# binding for Facebook's RocksDB Key-Value store + native builds for Windows, macOS and Linux

BrightstarDb

BrightstarDB is a native .NET RDF triple store

DBreeze

DBreeze Database is an open-source embedded Key-Value store

Event Store

The open-source, functional database with Complex Event Processing in JavaScript

LiteDB

A .NET NoSQL Document Store in a single data file -

RavenDB

A LINQ-enabled document database for .NET

Marten

PostgreSQL as a document database and event store for .NET applications

Realm Xamarin

A fast, easy-to-use alternative to SQLite & ORMs -

Streamstone

Event store for Azure Table Storage

StringDB

StringDB is a modular, key/value pair archival DB designed to consume tiny amounts of ram & produce tiny databases

Ignite

Distributed in-memory platform: document database with SQL and LINQ support; distributed computations; distributed services and events

Yessql

A .NET document database working on any RDBMS

JsonFlatFileDataStore

Simple JSON flat file data store with support for typed and dynamic data

Db4o-gpl

Object-oriented database, embedded and remote connections supported

ZoneTree

Persistent, high-performance, transactional, and ACID-compliant ordered key-value database for .NET

DuckDB.NET

.NET data provider for DuckDB

Connector/Net is a fully-managed ADO.NET driver for MySQL

Npgsql

.NET data provider for PostgreSQL

MongoDB

Official MongoDB C# driver

RethinkDb.Driver

A RethinkDB database driver in C# striving for 100% ReQL API compatibility and completeness

ServiceStack Redis

.NET's leading C# Redis client

StackExchange Redis

General purpose Redis client from StackExchange

Cassandra

DataStax .NET driver for Apache Cassandra

Couchbase

Official Couchbase .NET client library, based on the Enyim memcached client

The .NET Data provider is written in C# and provides a high-performance, native implementation of the Firebird API

NodaTime

Noda Time is an alternative date and time API for .NET. It helps you to think about your data more clearly, and express operations on that data more precisely

DateTimeExtensions

Common Date Time operations on the form of extensions to , including holidays and working days calculations on several culture locales

Exceptionless.DateTimeExtensions

DateTimeRange, Business Day and various , , extension methods

dnSpy

open-source .NET assembly browser, editor, decompiler and debugger

dnSpyEx

Unofficial revival of dnSpy

ILSpy is the open-source .NET assembly browser and decompiler

The decompilation engine of

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

Unfold

PowerShell-based deployment solution for .NET web applications

DbUp

.NET library that helps you to deploy changes to SQL Server databases. It tracks which SQL scripts have been run already, and runs the change scripts that are needed to get your database up to date

Octo Pack

Used to build NuGet packages of your application for deployment using tools such as Octopus Deploy

yuniql

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.Windows

Cross platform .NET standard libraries for DirectX, WIC, Direct2D1, XInput, XAudio and X3DAudio

.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

FsShelter

F# library for authoring components and topologies. Offering high-level abstractions for distributed and fault-tolerant event stream processing

Integrated Data Scripting for the Cloud

protoactor-dotnet

Proto Actor - Ultra fast distributed actors for Golang and C#

cmd

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

Sandcastle

Sandcastle Help File Builder similar to NDoc

SourceBrowser

Source browser website generator that powers

Swashbuckle

Seamlessly adds a Swagger to Web API projects

Tools for documenting F# and C# projects from F# script files, Markdown documents and inline XML or Markdown comments

DocFX

Tools for building and publishing API documentation for .NET projects

DocNet

Your friendly static documentation generator, using markdown files to build the content

NopCommerce

nopCommerce. Free open-source e-commerce shopping cart (ASP.NET Core)

ServiceStack.Stripe

Typed .NET clients for stripe.com REST APIs

SmartStoreNET

Free ASP.NET Core MVC e-commerce Shopping Cart Solution

Stripe.Net

Stripe.net is a full service .NET API for

Virto Commerce

Virto Commerce is the second generation release and is the only enterprise level e-commerce product fully available under Open Source license. Virto Commerce is based on .NET 4.5 with extensive use of MVC, IoC, EF, Azure, AngularJS and many other cutting edge technologies. It can be deployed in Microsoft Cloud (Azure), Amazon Web Services (AWS) and on-premise

SimplCommerce

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

GrandNode

Headless, multi-vendor, multi-tenant, the most advanced open source e-commerce platform based on .NET Core 5.0 and MongoDB

Adyen

The official Adyen Payment API Library for .NET

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

Experimental Nintendo Switch Emulator written in C#

Dotnet CLI

The cross-platform .NET Core command-line toolchain utility

Cinchoo ETL

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

Reactive ETL is a rewrite of Rhino ETL using the reactive extensions for .NET

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

Super-simple Reactive-Extension code from Reactive.EventAggregator

TinyMessenger

A lightweight event aggregator/messenger for loosely coupled communication

Xer.Cqrs

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

FluentMediator

FluentMediator is an unobtrusive library that allows developers to build custom pipelines for Commands, Queries and Events

EventFlow

EventFlow is an Async/await first CQRS and Event Sourcing DDD framework for .NET

Exceptionless

Exceptionless .NET Client

Site with collection of extension methods

Z.ExtensionMethods

Over a 1000 useful extension methods

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

Curryfy

Provides strongly typed extensions methods for C# delegates to take advantages of functional programming techniques, like currying and partial application

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

Optional

A robust option type for C#

JFlepp.Maybe

A Maybe type for C#, aimed as an idiomatic port of the option type in F# to C#

Optuple

.NET Standard Library for giving Option-like semantics in a non-obtrusive way; this is, there is no new option type dependency for a library or its users

MoreLinq

Provides extra methods to LINQ to Objects

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

CocosSharp

CocosSharp is a C# implementation of the Cocos2D and Cocos3D APIs that runs on any platform where MonoGame runs

Duality

Duality is a 2D game development framework. Focused on modularity, comes with a visual editor

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 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

UrhoSharp

UrhoSharp is a C# implementation of the Urho3D game engine that runs on iOS, Mac, Windows, Android and Linux systems

Nez

Nez is a free 2D-focused framework that works with MonoGame and FNA

BEPUphysics

BEPUphysics is a pure C# 3D physics library

Devtodev

A full-cycle analytics solution for game developers

UnrealCLR

Unreal Engine .NET Core integration

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,

NetTopologySuite

A .NET GIS solution that is fast and reliable for the .NET platform

An easy-to-use mapping library for use in web and desktop applications

C# library to work with OpenStreetMap (OSM) data. Provides reading, writing and route-planning for OSM data

GeoJSON4EntityFramework

A library to create GeoJSON from Entity Framework Spatial Data or Well-Known Text (WKT) inputs

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

Husky.Net

Git hooks made easy with Husky.Net internal task runner, You can use it to lint your commit messages, run tests, lint code, etc... when you commit or push. supports C# scripts, gitflow hooks, Multiple file states (staged, lastCommit, glob)

Bonobo Git Server

Bonobo Git Server for Windows is a web application you can install on your IIS and easily manage and connect to your Git repositories

GitExtensions

GitExtensions is a shell extension, a Visual Studio 2008/2010/2012/2013 plugin and a standalone Git repository tool

GitLink

let's users step through their code hosted on GitHub or BitBucket

GitVersion

Generate a Semantic Version Number based on the state of your Git repository

LibGit2Sharp

LibGit2Sharp brings all the might and speed of libgit2, a native Git implementation, to the managed world of .NET and Mono

GitRead.Net

GitRead.Net is a .NET Standard library which allows you to very easily interrogate a Git repository that you have on disk. It allows you to enumerate the commit log, count lines per file and list files changed by a commit

NGit

NGit is a port of JGit to C#

posh-git

A PowerShell environment for Git

RepoZ

A Git repository information aggregator with Windows Explorer & CLI-enhancements

Git Credential Manager for Windows

Helps solving issues of credentials, made by Microsoft

LibTessDotNet

.NET port of the famous GLU Tessellator, triangulates polygons

OxyPlot is a cross-platform plotting library for .NET

OpenTK

The Open Toolkit is an advanced, low-level C# library that wraps OpenGL, OpenCL and OpenAL

NGraphics

NGraphics is a cross-platform library for rendering vector graphics on .NET

Fully managed, cross-platform, complete 2D graphic library for drawing text, geometries, and images, with System.Drawing compatible API

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 is a collection of 3D components for .NET

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

RealTimeGraphX

RealTimeGraphX is a data type agnostic, high performance plotting library for WPF, UWP and soon, Xamarin Forms

VectSharp

.NET library to create vector graphics and text, and then export it to PDF, SVG and raster image formats

GraphQL.NET

Implementation of in .Net

HotChocolate

GraphQL server compatible to all GraphQL compliant clients like Strawberry Shake, Relay, Apollo Client, and various other clients and tools

graphql-net

GraphQL to IQueryable for .NET

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

HandyControl

Contains some simple and commonly used WPF controls

Lara

Lara Web Engine is a library for developing Web user interfaces in C#

QtSharp

Mono/.NET Bindings for Qt

Qml.Net

A cross-platform Qml/.NET integration for Mono/.NET/.NET Core

MahApps.Metro

Toolkit for creating Metro-styled WPF apps

Callisto

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

ObjectListView is a C# wrapper around a .NET ListView. It makes the ListView much easier to use and teaches it some new tricks

The Visual Studio inspired docking library for .NET WinForms

AvalonEdit

The WPF-based text editor component used in SharpDevelop

XWT

A cross-platform UI toolkit for creating desktop applications with .NET and Mono

Gtk#

Gtk# is a Mono/.NET binding to the cross platform Gtk+ GUI toolkit and the foundation of most GUI apps built with Mono

Toolkit for creating Material Design styled WPF apps

Eto.Forms

Cross-platform GUI framework for desktop and mobile applications in .NET and Mono

Dragablz

Dragable, tearable WPF tab control (similar to Chrome) which supports layouts and is full themeable, including themese compatible with MahApps and Material Design

Fluent.Ribbon

Fluent Ribbon Control Suite is a library that implements an Office- and Windows 8-like Ribbon for WPF

Office Ribbon

A library that implements MS Office Ribbon for WinForms

MaterialSkin

Theming .NET WinForms, C# or VB.Net, to Google's Material Design principles

Xamarin.Forms

Build native UIs for iOS, Android and Windows from a single, shared C# codebase

SciterSharp

Create .NET cross-platform desktop apps using not just HTML, but all features of Sciter engine: CSS3, SVG, scripting, AJAX, <video>... Sciter is free for commercial use

Multi-platform and multi-engine XAML based user interface library

UWP Community Toolkit

The UWP Community Toolkit is a collection of helper functions, custom controls, and app services. It simplifies and demonstrates common developer tasks building UWP apps for Windows 10

ScintillaNET

Windows Forms control for the Scintilla text editor component (Scintilla is used by Notepad++)

FastColoredTextBox

Fast Colored TextBox is text editor component for .NET. Allows you to create custom text editor with syntax highlighting. It works well with small, medium, large and very-very large files

Avalonia

A multi-platform .NET UI framework (formerly known as Perspex)

Modern UI for WPF - MUI

Set of controls and styles to convert WPF applications into a great looking Modern UI apps

WinApi

A simple, direct, ultra-thin CLR library for high-performance Win32 Native Interop with automation, windowing, DirectX, OpenGL and Skia helpers

Neutronium

Build .NET desktop applications using HTML, CSS, javascript and MVVM bindings such as with WPF

Ooui

A small cross-platform UI library that brings the simplicity of native UI development to the web

AdonisUI

Lightweight UI toolkit for WPF applications offering classic but enhanced Windows visuals

Windows UI Library

The Windows UI Library (WinUI) provides official native Microsoft UI controls and features for Windows UWP apps

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

The only platform for building native mobile, desktop and WebAssembly with C#, XAML from a single codebase. Open source and professionally supported. Website:

AngleSharp

Complete HTML5 DOM and CSS3 OM construction

dotless

.NET port of the Ruby Less CSS lib

ExCSS

CSS3 parser library for C#

an agile HTML parser that builds a read/write DOM and supports plain XPath or XSLT

LibSass Host

.NET wrapper around the library with the ability to support a virtual file system

LtGt

lightweight HTML processor, can be used to parse and navigate DOM, handles CSS selectors, can convert to Linq2Xml, easily extensible, and more

Tiny.RestClient

Simpliest Fluent REST client for .NET

Http.fs

A functional HTTP client for F#

RestSharp

Simple REST and HTTP API client for .NET

Fluent, portable, testable REST/HTTP client library

EasyHttp

HTTP library for C#

Refit

The automatic type-safe REST library for Xamarin and .NET

RestEase

Easy-to-use typesafe REST API client library, which is simple and customisable. Heavily inspired by Refit

RestLess

The automatic type-safe-reflectionless REST API client library for .Net Standard

HttpClientGoodies

utilities for working with

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

AvalonStudio

An extensible, cross platform IDE written in C# for Embedded C/C++, .NET Core, Avalonia and Typescript

SharpDevelop

A free IDE for .NET programming languages

MonoDevelop

MonoDevelop is a cross-platform IDE mostly aimed at Mono/.NET developers

The free lightweight version of Visual Studio for .NET programming

A full-featured IDE

A simple and fast code editor that makes fun program with C# or Visual Basic

Excellent open source editor from Microsoft, based on Electron

An Atom Editor and Visual Studio Code package suite for cross platform F# development

A cross-platform C# IDE based on the IntelliJ platform and ReSharper

RoslynPad

A simple C# editor based on Roslyn and AvalonEdit

A cross-platform IDE with C# & Java support, fork of IntelliJ IDEA Community Edition

A visual live-programming environment for .NET

CSharp Analyzer by MongoDB

A free Visual Studio Extension for MongoDB users, helping translate your code into MongoDB queries

ImageWizard

Image processing webservice based on ASP.NET Core and ImageSharp / SkiaSharp / SvgNet / DocNET

Add commands to image URLs to get altered versions in milliseconds. Resizing, editing etc of images in real-time

ImageProcessor

Open-source .NET library to manipulate images on-the-fly

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

High-performance open-source image manipulation library for ASP.NET

MetadataExtractor

Extracts Exif, IPTC, XMP, ICC and other metadata from image files

Cross-platform .NET wrapper for the OpenCV library

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

DotImaging

Minimalistic .NET imaging portable platform

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+)

A cross-platform .NET Standard library for reading/manipulating/writing image files. The primary focus is to create 2D/3D/Cubemap textures for graphics/game applications, notably to convert images to GPU compressed formats and generate mipmaps. The library wraps the FreeImage native library to import/export over 30 common image formats, and wraps the Nvidia Texture Tools native library for GPU compression features. It also has a fully featured DDS format importer/exporter written in C#

Colourful

Open source .NET library for working with color spaces

Easily update image urls to be fast and responsive

ColorHelper

Useful methods for work with colors

Unicolour

Colour conversion, interpolation, and comparison for .NET

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 or , but for Windows

An interactive editor for WiX projects

Onova

An unopinionated auto-update framework for desktop applications

.NET Interactive

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

i18n

Smart internationalization for ASP.NET MVC

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

CppSharp

Tools to surface C++ APIs to C#

Sharpen

Sharpen is an Eclipse plugin created by db4o that allows you to convert your Java project into C#

CXXI

C++ interop framework

pythonnet

Python and .NET interop framework

PInvoke Interop Assistant

Converts C to managed P/Invoke signatures or verse visa

pinvoke

A library containing P/Invoke code for latest Windows OS

LegacyWrapper

LegacyWrapper uses a wrapper process to call DLLs from a process of the opposing architecture (x86 or AMD64)

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

Castle Windsor

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

Unity

Lightweight extensible dependency injection container with support for constructor, property, and method call injection

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

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

TinyIoC

An easy to use, hassle free, Inversion of Control Container for small projects, libraries and beginners alike

Stashbox

A lightweight, portable dependency injection framework for .NET based solutions

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

Essential Diagnostics

Extends the inbuilt features of System.Diagnostics namespace to provide flexible logging

NLog

NLog - Advanced .NET and Silverlight logging

Logazmic

Open source NLog viewer for Windows

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

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

Sejil

Capture, view and filter your ASP.NET Core app's logs right from your app. It supports structured logging, querying as well as saving log queries

Sentry

.NET SDK for 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

Semantic Logging Application Block (SLAB)

Extends the inbuilt features of System.Diagnostics.Tracing namespace (EventSource class) to log to several sinks including Azure Tables, Databases, files (JSON, XML, text). Supports in-process and out-of-process logging through ETW, and Rx for real-time filtering/aggregating of events

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

Centralized .NET logging and monitoring

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

Logs errors. Includes useful diagnostic info like stack trace, session, release, etc. Has a free tier

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

A framework for running Bayesian inference in graphical models. It can also be used for probabilistic programming

Machine learning framework combined with audio and image processing libraries (computer vision, computer audition, signal processing and statistics)

Accord.NET Extensions

Advanced image processing and computer vision algorithms made as fluent extensions

Framework for developers and researchers in the fields of Computer Vision and Artificial Intelligence (image processing, neural networks, genetic algorithms, machine learning, robotics)

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

Data frame and (time) series library for exploratory data manipulation with C# and F# support

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

numl

Designed to include the most popular supervised and unsupervised learning algorithms while minimizing the friction involved with creating the predictive models

ML.NET

Cross-platform open-source machine learning framework which makes machine learning accessible to .NET developers

Type provider that exposes R packages and functions in a type-safe way to F# callers

F# Data

F# type providers for accessing XML, JSON, CSV and HTML files (based on sample documents) and for accessing WorldBank data

Spreads

Series and Panels for Real-time and Exploratory Analysis of Data Streams. Spreads library is optimized for performance and memory usage. It is several times faster than other open source projects

A rich machine learning ecosystem for .NET created by porting the most popular Python libraries to C#

Synapses

An in-memory neural network library written in F#

m2cgen

A CLI tool to transpile trained classic ML models into a native .NET (C#, F# or Visual Basic) code with zero dependencies

Open source C# implementation of Markdown processor, as featured on Stack Overflow

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

FluentEmail

A fluent wrapper for System.Net.Mail with Razor templating support

MailKit

A complete cross-platform mail stack including IMAP, POP3, SMTP, authentication and more. Built on top of MimeKit

MailKitSimplified

A fully-featured fluent wrapper for MailKit that makes sending 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

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

UnitConversion

Expansible Unit Conversion Library for .NET Core and .NET Framework

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) and

AutoDiff

AutoDiff is a library for quickly computing gradients of functions defined by expressions. Mainly useful in numerical optimization

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

Vim.Math3d

A feature-rich cross-platform replacement for System.Numerics with support for consistent serialization and binary layout, and additional structures and algorithms for efficient 3D Math

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

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

SeeShark

Cross-platform camera library for .NET using FFmpeg supporting over 190 pixel formats

C# StatsD Client

C# client for Etsy's StatsD

Foundatio

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

.NET Micro Framework Interpreter

Microsoft® .NET Micro Framework (NETMF) for developing embedded applications on small devices using Visual Studio

Contains JS and CSS minifiers which have a highest performance, because its have been specifically designed for .NET. Optionally produce Source Maps for JS code

Web Markup Minifier

.NET library that contains a set of markup minifiers. The objective of this project is to improve the performance of web applications by reducing the size of HTML, XHTML and XML code

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

A web-based C# REPL with awesome code completion

AzureCrawler

Take HTML Snapshots for your Angular, Ember, Durandal or any JavaScript applications

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

RecordParser

Library to help reading and writing CSV and Flat files with zero heap allocation

Hashids.net

Generate short unique ids from integers, as per

ConsoleTableExt

Fluent library to create table for .Net console application

FlatMapper

A library to import and export data from and to plain text files in a LINQ-compatible way

FluentValidation

A small validation library for .NET that uses a fluent interface and lambda expressions for building validation rules

FormHelper

Form & Validation Helper for ASP.NET Core. Form Helper helps you to create ajax forms and validations without writing any javascript code. (Compatible with Fluent Validation)

Guard

A high-performance, extensible argument validation library

Valit

Valit is dead simple, fluent validation for .NET Core

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

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)

Rant

The Rant Procedural Text Generation DSL

ScriptCS

Write C# apps with a text editor, NuGet and the power of Roslyn!

Shielded

Software Transactional Memory (STM) implementation for .NET

MSBuild ILMerge task is a NuGet package allows you to use the famous ILMerge utility in automated builds and/or Visual Studio projects

ReactJS.NET

ReactJS.NET is a library that makes it easier to use Babel along with Facebook's React and JSX from C#

Aeron.NET

Efficient reliable UDP unicast, UDP multicast, and IPC message transport - .NET port of Aeron

TypeShape

TypeShape is a small, extensible F# library for practical generic programming

Streams

A lightweight F#/C# library for efficient functional-style pipelines on streams of data

Warden

Define "health checks" for your applications, resources and infrastructure. Keep your Warden on the watch

ByteSize

ByteSize is a utility class that makes byte size representation in code easier by removing ambiguity of the value being represented. ByteSize is to bytes what System.TimeSpan is to time

Jot

a library for persisting and restoring application state (a better alternative to .settings files)

Enums.NET

Enums.NET is a high-performance type-safe .NET enum utility library

HidLibrary

This library enables you to enumerate and communicate with Hid compatible USB devices in .NET

SystemWrapper

SystemWrapper is .NET library for easier testing of system APIs

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!

Quickenshtein

An extremely quick and memory efficient Levenshtein Distance calculator with SIMD and Threading support

Infinity Crawler

A simple but powerful web crawler library for .NET

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

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)

Collection of control & helper libraries and samples for various .NET technologies. Contains modern MVVM library, supported by Microsoft. Includes , , and

Caliburn.Micro

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

MVVM Light Toolkit

The main purpose of the toolkit is to accelerate the creation and development of MVVM applications in WPF, Silverlight, Windows Store (RT) and for Windows Phone

Catel 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

Update Controls does not require that you implement or declare a . It connects controls directly to CLR properties. This makes it perfect for the Model/View/ViewModel pattern

ReactiveUI

An MVVM framework for .NET that integrates the Reactive Extensions (Rx) framework, enabling developers to build elegant, testable applications using WPF, Windows Store Apps, WP8 or Xamarin

An app centric MVVM framework for Windows 8.1 built with dependency injection in mind, including a full set of Visual Studio MVVM templates

Prism

A cross-platform desktop and mobile MVVM development framework

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

Gemini

IDE framework similar in concept to the Visual Studio Shell. Built on WPF, AvalonDock, and Caliburn Micro

Toms Toolbox

Visual Composition framework to easily build modularized MVVM applications based on the

MVVM Dialogs

Framework simplifying the concept of opening dialogs from a view model when using MVVM in WPF or UWP

Smaragd

A platform-independent, lightweight library for developing .NET applications using the MVVM architecture

EBind

A concise, fast and feature-rich .NET data binding solution

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

AutoMapper

A convention-based object-object mapper in .NET

TinyMapper

A tiny and quick object mapper for .NET

ExpressMapper

A lightweight, lighting fast .NET mapper to map one type of object(s) to another in automated and easy way. ExpressMapper relies completely on the expression trees

AgileMapper

A zero-configuration Object-Object mapper supporting .NET Standard 1.0

Mapperly

A .NET source generator for generating object mappings. No runtime reflection

Mapster

A high performance object mapper in .net

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

EPPlus

EPPlus is a .NET library that reads and writes Excel 2007/2010 files using the Open Office XML format (xlsx)

Open XML SDK

The Open XML SDK provides open-source libraries for working with Open XML Documents (DOCX, XLSX, and PPTX)

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

A package of .NET components that enable fast, simple and efficient processing of office files (Excel, Word, PowerPoint, PDF and emails)

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

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

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

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

Cledev.OpenAI

.NET SDK for OpenAI which includes ChatGPT, DALL-E and Whisper APIs and a Blazor Server playground

Entity Framework 6

Object-relational mapper that enables .NET developers to work with relational data using domain-specific objects

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

Dapper Extensions

Small library that complements Dapper by adding basic CRUD operations (Get, Insert, Update, Delete) for your POCOs

Dapper.FastCRUD

The fastest micro-ORM extension for Dapper

DapperQueryBuilder

Dapper Query Builder using String Interpolation and Fluent API

SqlSugar

Another ORM library supports many RDBMS including MySql, SqlServer, Sqlite, Oracle, Postgresql

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 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

Massive

A small, happy, data access tool that will love you forever

LINQ to DB

The fastest LINQ database access library offering a simple, light, fast, and type-safe layer between your POCO objects and your database

MicroLite ORM

MicroLite ORM is a micro Object Relational Mapper for the .NET framework. It is designed to be easy to use, extensible and testable

PetaPoco

A tiny ORM-ish thing for your POCOs

AsyncPoco

A long-"awaited" fully asynchronous PetaPoco fork

NPoco

Simple microORM that maps the results of a query onto a POCO object. Based on Schotime's branch of PetaPoco

Limebean

Hybrid ORM which uses SQL fragments and doesn't require Model Classes

Entity Modeling solution for Entity Framework, NHibernate, Linq to SQL and its own ORM framework: LLBLGen Pro Runtime Framework

Insight.Database

Insight.Database is a fast, lightweight, micro-ORM for .NET

Data-access framework with a strong focus on query composition, granularity and code aesthetics

SmartSql

SmartSql = MyBatis + Cache（Memory | Redis）+ ZooKeeper + R / W Splitting + Dynamic Repository

RepoDb

A hybrid ORM library for .NET

Venflow

A super fast and lightweight ORM for PostgreSQL

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

The .NET package manager

BaGet

A cross-platform, lightweight NuGet and Symbol server

A fully managed package management SaaS, with support for NuGet, Npm, Docker and much more

Hosted Package Repository for NuGet, NPM, Bower and VSIX. Also provides CI as-a-Service

Paket

A package dependency manager for .NET with support for NuGet packages and GitHub repositories

Sleet

A NuGet v3 static feed generator with support for AWS S3 and Azure Storage

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 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

PDF library to create, read, edit, draw, and print PDF documents in .NET and .NET Core applications. 100% managed, without unsafe blocks

ITextSharp

iText is a PDF library that allows you to CREATE, ADAPT, INSPECT and MAINTAIN documents in the Portable Document Format (PDF)

PdfiumViewer

PdfiumViewer is a PDF viewer based on the PDFium project

WkhtmlToPdf

C# wrapper around wkhtmltopdf console utility. Allow to generate preety PDF using HTML and CSS

Advanced C# PDF library for render, create, edit, merge, split, print, and view PDFs. Open source PDF Viewer is available on . A is also available for easy inclusion into your projects

Read and create and extract text and other content from PDFs in C# (port of PdfBox)

QuestPDF is an open-source, modern and battle-tested library that can help you with generating PDF documents by offering friendly, discoverable and predictable C# fluent API

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

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

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

MiniProfiler

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

Glimpse

The open source diagnostics platform for the web

Unchase.FluentPerformanceMeter

An open-source and cross-platform .Net Standard 2.0 library that is designed for the method’s performance measurement

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

An open source SNMP implementation for .NET/Mono/Xamarin. Version 1, 2c, and 3 are supported

DNS

A library for parsing and serializing DNS messages. Includes a basic DNS client and server

DnsClient.NET

A simple yet very powerful and high performant open source library for the .NET Framework to do DNS lookups

A library and code generator to develop SiLA2 clients and servers

PushSharp

A server-side library for sending Push Notifications to iOS, OSX, Android, Chrome, Windows Phone, Windows 8, Blackberry, and Amazon devices

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

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

Gofer.NET

Easy C# API for Distributed Background Tasks/Jobs for .NET Core. Inspired by celery for python

Hangfire

Incredibly easy way to perform fire-and-forget, delayed and recurring tasks inside ASP.NET applications

RabbitMQ.NET

Implementation of an AMQP client library for C#, and a binding exposing AMQP services via WCF

NetMQ

NetMQ is 100% native C# port of ZeroMQ

MassTransit

MassTransit is lean service bus implementation for building loosely coupled applications using the .NET Framework

Rebus

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

RestBus

A service-oriented .NET messaging library for RabbitMQ

RawRabbit

A modern .NET Core library for RabbitMQ

EasyNetQ

An easy to use .NET API for RabbitMQ

Warewolf ESB

An easy to use service bus and microservices platform. Easily build applications and services in a visual IDE

Confluent's .NET Client

Confluent's .NET Client for Apache Kafka

Foundatio

A common interface with in-memory, Redis and Azure implementations

Kafunk

F# Kafka client from Jet

Brighter

Command Dispatcher, Processor, and Distributed Task Queue

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

gRPC

An RPC library and framework for .NET Core. Read more about it on

CoreRPC

Extensible library for WCF-like RPC targeting netstandard1.3. Compatible with .NET, Mono and .NET Core

BloomRPC

BloomRPC aims to provide the simplest and most efficient developer experience for exploring and querying your GRPC services

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

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

ObsevableComputations

A cross-platform .NET library for computations whose arguments and results are objects that implement INotifyPropertyChanged and INotifyCollectionChanged (ObservableCollection) interfaces

SIPSorcery

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

RegExtract

Clean & simple idiomatic C# RegEx-based line parser that emits strongly typed results

Gigantor

Fast regular expressions supporting gigantic files combining System.Text.RegularExpressions.Regex with multi-threading

FluentScheduler

Task scheduler with fluent interface that runs automated jobs from your application

NCrontab

Class library for parsing & formatting 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

An easy way to perform fire-and-forget, delayed and recurring tasks inside .NET apps

Chroniton

A simple, fully integrable, and customizable library for running strongly typed jobs (tasks) on schedules

DurableTask

This framework allows users to write long running persistent workflows in C# using the async/await capabilities

Workflow Core

Lightweight embeddable workflow engine

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

An API client library for .NET

Elasticsearch .NET

Elasticsearch.Net & NEST

PlainElastic.Net

Plain .NET client for ElasticSearch

SolrNet

Solr client for .NET

SolrExpress

A simple and lightweight query .NET library for Solr, in a controlled, buildable and fail fast way

Lucene.Net is a port of the Lucene search engine library, written in C# and targeted at .NET runtime users

Ceras

Ceras is a binary serializer. It converts any object into a byte[] and back. It goes above and beyond in terms of features, speed, and comfort. Supports reference loops, large/complicated inheritance chains, splitting objects into parts and more

CsvExport

Very simple & lightweight CSV exporter, Excel friendly, escapes text & quotes etc

Protobuf.NET

Protocol buffers is the name of the binary serialization format used by Google for much of their data communications

Json.NET

Popular high-performance JSON framework for .NET

ServiceStack.Text

JSON, JSV and CSV Text Serializers used in servicestack.net

Msgpack-Cli

MessagePack implementation for Common Language Infrastructure

Jil

Fast .NET JSON serializer, built on Sigil (used by StackOverflow)

ProtoBuf

Generate C# code for protocol buffer serialization from a .proto specification

FlatSharp

Fast, idiomatic FlatBuffers implementation. Use .fbs files or attributes

F# type providers for accessing XML, JSON, CSV and HTML files (based on sample documents) and for accessing WorldBank data

Bond

cross-platform framework for working with schematized data. It supports cross-language de/serialization and powerful generic mechanisms for efficiently manipulating data

Hyperion

A high performance polymorphic serializer for the .NET framework

FileHelpers

free and easy to use .NET library to import or export data from fixed length or delimited records in files, strings or streams

FsPickler

A fast multi-format message serializer for .NET

Migrant

Fast and flexible serialization framework usable on undecorated classes

Utf8Json

Fast and Zero Allocation JSON Serializer for C#(.NET, .NET Core, Unity and Xamarin), this serializer write/read directly to UTF8 binary so boostup performance

ObjectDumper.NET

Serializes in-memory object to C# code

FluentSerializer

A profile-based Serializer for multiple data-formats

Twilio-csharp

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

Stateless

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

Automatonymous

A state machine library for .NET - allows you to write fluent style state machines

LiquidState

Efficient asynchronous and synchronous state machines for .NET

FsBlog

Blog aware, static site generation using F#

Pretzel

A site generation tool (and then some) for .NET platforms

Sandra.Snow

Jekyll-inspired static site generation for .NET

A simple to use, highly modular, and extremely configurable static content generator

Strong Namer

Automatically add strong names to referenced assemblies which do not already have a strong name. This will allow you to reference and use (NuGet packages with) assemblies which are not strong named from your projects that do use a strong name

.NET Assembly Strong-Name Signer

Utility software to strong-name sign .NET assemblies, including assemblies you do not have the source code for

StackOverflow Q & A on style guides

Official MSDN C# code conventions

C# Async Guidance

list of problematic asynchronous patterns for .NET Core with an explanation of how to solve those issues

RazorEngine

Open source templating engine based on Microsoft's Razor parsing engine

RazorLight

Open source template engine based on Microsoft's Razor parsing engine supporting .NET Standard 2.0

Nustache

Open source library for logic-less templates

Stubble

Trimmed down {{mustache}} templates in .NET. Successor of Nustache

DotLiquid

C# port of the Ruby Liquid templating language

Mustache Sharp

An extension of the mustache text template engine for .NET

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

ArchUnitNET

Simple library for checking the architecture of C# code with a fluent API

NetArchTest

A fluent API for .Net Standard that can enforce architectural rules in unit tests

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!

BDDfy

BDDfy is the simplest BDD framework EVER!

Bogus

A simple and sane fake data generator for C#. Based on and ported from the famed faker.js

ExpressionToCode

Use plain C# syntax in assertions that include both the expression expression and subexpression values in the failure message

FakeItEasy

The easy mocking library for .NET

Fluent Assertions

A set of .NET extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style test

FluentAutomation

Simple Fluent API for UI Automation

FsCheck

Random Testing for .NET

Fuchu

A unit-testing library for F# with tests-as-values which makes DSLs extremely easy to create

Machine.Specifications

Machine.Specifications (MSpec) is a context/specification framework that removes language noise and simplifies tests

Moq

The most popular and friendly mocking framework for .NET

Moq.Contrib.HttpClient

A set of extension methods for mocking HttpClient and IHttpClientFactory with Moq

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

NBuilder

Rapid generation of test objects

An automated continuous & concurrent testing tool for Visual Studio

NFluent is an assertion library which aims to fluent your .NET TDD experience

A friendly substitute for .NET mocking frameworks

NUnit

A unit-testing framework for all .NET languages

Rhino Mocks

Dynamic Mocking Framework for .NET

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 enterprise-grade scan engine directly into your integration or e2e tests

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

Binding business requirements to .Net code

Stryker.NET

Mutation testing for .NET Core projects

xBehave.net

An xUnit.net extension for describing your tests using natural language

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

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

Downloader

Fast and reliable multipart downloader with asynchronous progress events for .NET applications

The free web debugging proxy for any browser, system or platform

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

CodeHub

CodeHub is the best way to browse and maintain your GitHub repositories on any iOS device!

ShareX

ShareX is a free and open source program that lets you capture or record any area of your screen and share it with a single press of a key. It also allows uploading images, text or other types of files to over 80 supported destinations you can choose from

Myrtille

A native HTML4/5 Remote Desktop Protocol client, HTTP gateway written in C# for .NET

Opserver

Stack Exchange's Monitoring System

Build status notifications for TFS/Jenkins/Travis/Appveyor. Cross-platform desktop app based on .NET Core and Electron

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

Netling

A load tester client for easy web testing. It is extremely fast while using little CPU or memory

Papercut

Papercut is an open source (.NET based) test email viewer that runs locally with a built-in SMTP server designed to receive and notify of test email messages

Visual Studio Uninstaller

Uninstall and clean up all components of Visual Studio

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

posh-dotnet

tab completion for the

SmartCode

SmartCode = IDataSource -> IBuildTask -> IOutput => Build Everything!!! (Including [ ])

NETworkManager

A powerful tool for managing networks and troubleshoot network problems!

A desktop notifications app for monitoring CI/CD pipelines, servers, network, health and metrics. AnyStatus supports Azure DevOps, Jenkins, TeamCity, AppVeyor and more

OctoLinker

Navigate through , , , , and C#/F#/VB.NET project files efficiently with the OctoLinker browser extension for GitHub

YARP

YARP is a reverse proxy toolkit for building fast proxy servers in .NET using the infrastructure from ASP.NET and .NET

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 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

Lean

Lean Engine is an open-source fully managed C# algorithmic trading engine built for desktop and cloud usage

StockSharp

Trading and algorithmic trading open source platform (stock markets, forex, bitcoins and options)

Atata

Automated web testing full featured framework based on Selenium WebDriver

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

View Entity Framework Core query plan directly in Visual Studio

Web Essentials

Web Essentials extends Visual Studio with lots of new features that web developers have been missing for many years

VsVIM

VIM in Visual Studio

NuGet is the package manager for the Microsoft development platform including .NET

SideWaffle

A collection of Item Templates for Visual Studio 2012/2013/2015 that makes any web developer's life much easier

Developer Productivity Tool for Visual Studio