• Dapper.GraphQL - A library designed to integrate the Dapper and graphql-dotnet projects with ease-of-use in mind and performance as the primary concern.
• graphql-aspnetcore - ASP.NET Core MiddleWare to create a GraphQL end-point.
• graphql-convention - This library is a complementary layer on top that allows you to automatically wrap your .NET classes into GraphQL schema definitions using existing property getters and methods as field resolvers
• graphiql-dotnet - GraphiQL middleware for ASP.NET Core.
• graphql-dotnetcore - GraphQL for .NET Core based on https://github.com/graphql/graphql-js.
• graphql-dotnet - GraphQL for .NET.
• graphql-dotnet-server - GraphQL for .NET - Subscription Transport WebSockets.
• Hot Chocolate - GraphQL server for .Net Core and .NET Framework.
• FSharp.Data.GraphQL - FSharp implementation of Facebook GraphQL query language https://fsprojects.github.io/FSharp.Data.GraphQL.
• parser - A lexer and parser for GraphQL in .NET.
• tanka-graphql - GraphQL execution and server libraries supporting SignalR, Apollo, schema manipulation and other features familiar from Apollo and graphql-js

• MicroElements.Swashbuckle.FluentValidation - Adds FluentValidation rules to swagger.
• Swashbuckle.AspNetCore.Filters - A bunch of useful filters for Swashbuckle.AspNetCore.

• IdentityServer4.EntityFramework - EntityFramework persistence layer
• IdentityServer4.MongoDB - MongoDB persistence layer
• IdentityServer4.EntityFrameworkCore - Entity Framework Core persistence layer
• IdentityServer4.Templates - dotnet cli templates for IdentityServer4.

• oidc-debugger - OAuth 2.0 and OpenID Connect debugging tool.

• CodeFormatter - Tool that uses Roslyn to automatically rewrite the source to follow netfx coding styles. Nuget Package
• DevSkim - A set of IDE plugins and rules that provide security "linting" capabilities.
• RefactoringEssentials - Refactoring Essentials for Visual Studio.
• roslyn-analyzers - .NET Compiler Platform ("Roslyn") Analyzers.
• StyleCopAnalyzers - StyleCop rules using the .NET Compiler Platform.

• AppMetrics - 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.
• Audit.NET - Small framework to audit .NET object changes.
• BenchmarkDotNet - Powerful .NET library for benchmarking.
• coverlet - Cross platform code coverage library for .NET Core.
• Foundatio - A common interface with in memory, redis, StatsD, and Metrics.NET implementations.
• MiniCover - Minimalist Code Coverage Tool for .NET Core.
• NBench - Performance benchmarking and testing framework for .NET applications.
• Nexogen.Libraries.Metrics - Library for collecting application metrics in .NET and exporting them to Prometheus.
• OpenCover - Code coverage tool for .NET 2 and above (WINDOWS OS only), support for 32 and 64 processes with both branch and sequence points.
• PerformanceMonitor - .NET Core Application Performance Monitor.
• prometheus-net - .NET Client for https://prometheus.io.
• Prometheus.Client - .NET Client for Prometheus.
  • Prometheus.Client.MetricPusher - Push metrics to a PushGateaway for the Prometheus.Client.
  • Prometheus.Client.AspNetCore - Middleware for the Prometheus.Client.
  • Prometheus.Client.MetricServer - MetricServer for the Prometheus.Client.
  • Prometheus.Client.HttpRequestDurations - Metrics logging of request durations for the Prometheus.Client.

• mysql-connector-net - Connector/Net is a fully-managed ADO.NET driver for MySQL.
• MySqlConnector - Async MySQL Connector for .NET and .NET Core.

• neo4j-dotnet-driver - Neo4j Bolt driver for .NET.
• Neo4jClient - .NET client binding for Neo4j.

• BeatPulse - Enable load balancers to monitor the status of deployed Web applications

• NLog for ASP.NET and ASP.NET Core - NLog integration for ASP.NET & ASP.NET Core 1-3
• NLog.Extensions.Logging - NLog Provider for Microsoft.Extensions.Logging for .NET Standard libraries and .NET Core applications
• NLog.Windows.Forms - NLog targets specific for Windows.Forms
• NLog.MailKit - Alternative Mail target using the using MailKit library

• serilog-aspnetcore - Serilog integration for ASP.NET Core 2+.
• Serilog.Exceptions - Serilog.Exceptions is an add-on to Serilog to log exception details and custom properties that are not output in Exception.ToString().
• Serilog.Settings.Configuration - A Serilog configuration provider that reads from Microsoft.Extensions.Configuration.

• Trady - Handy library for computing technical indicators, and it targets to be an automated trading system that provides stock data feeding, indicator computing, strategy building and automatic trading.

• FluentValidation - 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 - A dead simple validation for .NET Core. No more if-statements all around your code. Write nice and clean fluent validators instead!

• EFCore.BulkExtensions - EntityFrameworkCore Bulk Batch Extensions for Insert Update Delete Read (CRUD) ops
• EFCore.Visualizer - View Entity Framework Core query plan directly in Visual Studio.
• EntityFramework-Plus - Entity Framework Utilities | Bulk Operations | Batch Delete | Batch Update | Query Cache | Query Filter | Query Future | Query Include | Audit.
• EntityFramework.Exceptions - Use typed Exceptions for EntityFrameworkCore when your SQL query violates database constraints in SqlServer, MySql, or PostgreSQL.
• EntityFramework.Triggers - Trigger events for EF.
• EntityFramework.Rx - Reactive hot observables of your EF operations.
• Npgsql.EntityFrameworkCore.PostgreSQL - Entity Framework Core provider for PostgreSQL.
• EntityFramework.PrimaryKey - Easily get the primary key of any entity (including composite keys).
• EntityFramework.TypedOriginalValues - Get a proxy object of the original values of your entity (typed access to Property("...").OriginalValue).
• EntityFramework.VersionedProperties - Classes which auto-magically keep an audit history of the changes to the specified property.
• EntityFrameworkCore.SqlServer.SimpleBulks - Simple library that can help to sync a large number of records in-memory into the database. Lambda Expression is supported.
• LINQKit - A free set of extensions for LINQ to SQL and Entity Framework power users.
• Pomelo.EntityFrameworkCore.MySql - Entity Framework Core provider for MySql built on top of mysql-net/MySqlConnector.
• spectre.query - A simple query language for Entity Framework Core.

• Dapper-FluentMap - Provides a simple API to fluently map POCO properties to database columns when using Dapper.
• Dommel - Simple CRUD operations for Dapper.
• MicroOrm.Dapper.Repositories - CRUD for Dapper.

• Bittrex.Net - C# .Net wrapper for the Bittrex web API including all features easily accessible and usable.
• Binance.Net - .Net API wrapper for the Binance web API.

• msgpack-cli - MessagePack implementation for Common Language Infrastructure / msgpack.org.
• MessagePack-CSharp - Extremely Fast MessagePack Serializer for C#(.NET, .NET Core, Unity, Xamarin).

CliFx - Declarative framework for building command line interfaces.

CommandLineUtils - Command line parsing and utilities for .NET Core and .NET Framework.

docfx - Tools for building and publishing API documentation for .NET projects http://dotnet.github.io/docfx

dotnetfiddle - .NET sandbox for developers to quickly try out code and share code snippets.

dotnet-tools - A list of tool extensions for .NET Core Command Line (dotnet CLI).

• LibMan CLI - Client-side content manager for web apps.

EntryPoint - Composable CLI (Command Line) Argument Parser for .Net Core & .Net Framework 4.5+.

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.

gitignore.io - Create useful .gitignore files for your project https://www.gitignore.io.

ICanHasDotnetCore - Scans uploaded packages.config files or GitHub repository and determines whether the nuget packages target .NET Standard.

json2csharp - Generate C# classes from JSON.

letsencrypt-win-simple - A Simple ACME Client for Windows.

Linq_Faster - Linq-like extension functions for Arrays, Span, and List that are faster and allocate less.

mRemoteNG - The next generation of mRemote, open source, tabbed, multi-protocol, remote connections manager

NJsonSchema - NJsonSchema is a .NET library to read, generate and validate JSON Schema draft v4+ schemas.

NuKeeper - Automagically update nuget packages in .NET projects.

NuGetPackageExplorer - Create, update and deploy Nuget Packages with a GUI.

NugetVisualizer - Visualize all of the nuget packages and their corresponding versions for a set of given git repositories or folders.

OctoLinker - Navigate through projects.json files efficiently with the OctoLinker browser extension for GitHub.

posh-dotnet - PowerShell tab completion for the dotnet CLI.

Rin - Request/response Inspector middleware for ASP.NET Core. like Glimpse.

scoop - A command-line installer for Windows.

SerilogAnalyzer - Roslyn-based analysis for code using the Serilog logging library. Checks for common mistakes and usage problems.

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

ShareX - 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. https://getsharex.com

SharpLab - .NET code playground that shows intermediate steps and results of code compilation. https://sharplab.io

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

sourcelink - SourceLink is a language- and source-control agnostic system for providing first-class source debugging experiences for binaries.

System.CommandLine - System.CommandLine, a set of libraries for command line parsing, invocation, and rendering of terminal output.

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

X.Web.Sitemap – Simple sitemap generator for .NET and .NET Core

X.Web.RSS – Simple RSS Feed generator for .NET and .NET Core

• Blazor - UI framework running .NET in the browser via WebAssembly.
  • Awesome Blazor - Collection of awesome resources (samples, components, articles, videos and others) about Blazor.
  • Blazor Redux - Connecting a Redux state store with Blazor.
• Ooui - Small cross-platform UI library that brings the simplicity of native UI development to the web.

• AutoHistory - A plugin for Microsoft.EntityFrameworkCore to support automatically recording data changes history.

• clean-architecture-dotnet - Apply Minimal Clean Architecture with DDD-lite, CQRS-lite, and just enough Cloud-native patterns on eCommerce sample business domain
• coolstore-microservices - A Kubernetes-based polyglot microservices application with Istio service mesh
• distributed-playground - Distributed service playground with Vagrant, Consul, Docker & ASP.NET Core.
• DNC-DShop - Distributed .NET Core project and free course. (DDD, CQRS, RabbitMQ, MongoDB, Redis, Monitoring, Logging, CI, CD)
• dotnetcore-microservices-poc - simplified insurance sales system made in a microservices architecture using .NET Core (EF Core, MediatR, Marten, Eureka, Ocelot, RabbitMQ, Polly, ElasticSearch, Dapper) with blog post series.
• eShop - A reference .NET application implementing an eCommerce site.
• InMemoryCQRSReplication - Akka.NET Reference Architecture - CQRS + Sharding + In-Memory Replication
• magazine-website - Magazine website (using .NET Core, ASP.NET Core, EF Core) with DDD, CQRS, microservices, asynchronous programming applied.
• microservices-in-dotnetcore - The code sample from the second edition of Microservices in .NET Core.
• Practical.CleanArchitecture - Full-stack .Net 8 Clean Architecture (Microservices, Modular Monolith, Monolith), Blazor, Angular 18, React 18, Vue 3, BFF with YARP, Domain-Driven Design, CQRS, SOLID, Asp.Net Core Identity Custom Storage, OpenID Connect, Entity Framework Core, OpenTelemetry, SignalR, Hosted Services, Health Checks, Rate Limiting, Cloud Services (Azure, AWS, GCP).
• practical-dapr - Full-stack .NET microservices build on Dapr and Tye.
• ReactiveTraderCloud - Real-time trading platform demo showcasing reactive programming principles applied across the full application stack.

• AlbumViewerVNext - West Wind Album Viewer ASP.NET 5 Sample.
• allReady - Open-source solution focused on increasing awareness, efficiency and impact of preparedness campaigns as they are delivered by humanitarian and disaster response organizations in local communities. http://www.htbox.org/projects/allready
• AspNet5GeoElasticsearch - ASP.NET Core MVC Geo Elasticsearch Swashbuckle Swagger.
• aspnet-servicediscovery-patterns - Samples of implementing Service Discovery patterns with ASP.NET Core.
• AspNetAuthorizationWorkshop - A workshop for moving through the various new pieces in ASP.NET Core Authorization
• BikeSharing360 Suite of Apps from Microsoft Presented December Connect 2016 Conference, a compreshsive set of interworking apps for both enterprise users and the consumers (bike riders): Mobile Apps, Backend Services, Websites, Single Container Apps, Multi Container Apps, Cognitive Services Kiosk App,
  Azure Bot App.
• Clean Architecture Manga - Clean Architecture sample with .NET Core 3.0 and C# 8. Use cases as central organising structure, completely testable, decoupled from frameworks.
• cloudscribe - ASP.NET Core Multi-tenant web application foundation.
• CoreCodeCamp - An Open Source Website for running small, local development events.
• DotNetClub - Tiny club written in ASP.NET Core.
• eShopOnWeb - A layered application architecture with monolithic deployment model.
• Entropy - Chaotic experimental playground for new features and ideas - check here for small and simple samples for individual features.
• EquinoxProject - Full ASP.NET Core 2.0 application with DDD, CQRS and Event Sourcing.
• GenVue - a hostable, web application that lets confidential users upload and share private files build on Vue.js, Vuetifyjs and NetCore WebAPI stack
• guidance-identity-management-for-multitenant-apps - How to manage user identities in a multitenant app on Microsoft Azure, using Azure Active Directory for authentication.
• JustA.ML - A web application that lets you share files/URL/text between your devices written in ASP.NET Core 2.0. Open source, live at https://justa.ml
• MegaMine - Open source mining solution that helps miners in extracting Gold, Quartz, Granite etc. This solution is built using ASP.NET Core and AngularJS utilizing multiple light weight components in a Microservices way.
• MusicStore - Sample MusicStore application that uses MVC and Entity Framework.
• NLayerAppV3 - NLayerAppV3 N-Layered Architecture with .NET Core Preview 2.
• NorthwindTraders - Northwind Traders is a sample application built using ASP.NET Core and Entity Framework Core.
• Orchard Core - Modular and Multi-tenant applications - Use Orchard Core Framework to create Modular and Multi-tenant applications.
• PhotoGallery - Cross-platform Single Page Applications with ASP.NET Core, Angular 2 & TypeScript http://wp.me/p3mRWu-11L.
• PokeR - Realtime scrum poker using SignalR and Angular in ASP.NET Core's SPA hosting. Includes Docker support. Demo
• Practical ASP.NET Core - A daily updated micro samples of ASP.NET Core features and facilities.
• Practical.CleanArchitecture - Full-stack .Net 8 Clean Architecture (Microservices, Modular Monolith, Monolith), Blazor, Angular 18, React 18, Vue 3, BFF with YARP, Domain-Driven Design, CQRS, SOLID, Asp.Net Core Identity Custom Storage, OpenID Connect, Entity Framework Core, OpenTelemetry, SignalR, Hosted Services, Health Checks, Rate Limiting, Cloud Services (Azure, AWS, GCP).
• Sample .NET Core CQRS REST API - .NET Core REST API CQRS implementation with raw SQL and DDD using Clean Architecture.
• StarWars - GraphQL 'Star Wars' example using GraphQL for .NET, ASP.NET Core, Entity Framework Core.

• Microsoft architectural overview of comprehensive BikeSharing360 suite of demo apps with related videos
• Porting a .NET Framework library to .NET Core
• The 68 things the CLR does before executing a single line of your code
• The comparison between .NET Core and Nodejs at here, here and here
• Understanding ASP.NET Core Initialization
• Why you should join .NET Core and ASP.NET Core train

• Configuring the AWS SDK in .NET Core
• Serverless Architecture using C# and AWS Amazon Gateway Api/Lambda
• Using C# and .NET Core in Amazon Web Services (AWS) Lambda

• .NET project structure
• Adding Travis CI builds to a .NET Core app
• ASP.NET Core 1.0 - Configure ApplicationInsights
• haproxy, nginx, Angular 2, ASP.NET Core, Redis and Docker
• Project.json to MSBuild conversion guide
• Publishing a .NET project with Appveyor and NuGet
• The New Configuration Model in ASP.NET Core

• .NET Core Data Access
• A very good example about EF Core
• Connect to Postgres with EF Core

• Getting started with Orchard Core as a NuGet package
• How to export HTML to PDF in ASP.NET Core
• Vue.js server side rendering with ASP.NET Core

• .NET Continuous Delivery Microservices
• ASP.NET Core 2.0 Authentication and Authorization System Demystified
• A walk-through for an ASP.NET Authorization Lab
• Authentication in ASP.NET Core

• Selenium with .NET Core

• .NET Core
• CoreCLR
• ASP.NET Core
• ASP.NET Core MVC
• ASP.NET Core 1.0
• Entity Framework Core