Frameworks, Libraries and Tools

• Logging

  • Serilog.Exceptions - Serilog.Exceptions is an add-on to [Serilog](https://serilog.net/) 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.

• Machine Learning and Data Science

  • Accord - Machine learning, computer vision, statistics and general scientific computing for .NET.
  • Catalyst - platform Natural Language Processing (NLP) library inspired by spaCy, with pre-trained models, out-of-the box support for training word and document embeddings, and flexible entity recognition models. Part of the [SciSharp Stack](https://scisharp.github.io/SciSharp/)
  • ML.NET - Cross-platform open-source machine learning framework which makes machine learning accessible to .NET developers [http://dot.net/ml](http://dot.net/ml).
  • TensorFlowSharp - TensorFlow API for .NET languages.
  • WaveFunctionCollapse - itmap & tilemap generation from a single example with the help of ideas from quantum mechanics.
  • SiaNet - A C# deep learning library, human friendly, CUDA/OpenCL supported, well structured, easy to extend
  • Spreads - Series and Panels for Real-time and Exploratory Analysis of Data Streams.

• Mail

  • FluentEmail - All in one email sender for .NET and .NET Core
  • MailBody - Create transactional email with a fluent interface (.NET).
  • MailKit - Cross-platform .NET library for IMAP, POP3, and SMTP.
  • MailMergeLib - SMTP mail client library which provides comfortable mail merge capabilities for text, inline images and attachments, as well as good throughput and fault tolerance for sending mail messages.
  • MimeKit - Cross-platform .NET MIME creation and parser library with support for S/MIME, PGP, DKIM, TNEF and Unix mbox spools.
  • netDumbster - a .Net Fake SMTP Server used for testing. Clone of the popular Dumbster.
  • PreMailer.Net - C# library that moves your stylesheets to inline style attributes, for maximum compatibility with E-mail clients.
  • SendGrid Client - C# library for the SendGrid v3 mail endpoint.
  • SmtpServer - Library to create your own SMTP server.
  • 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.
  • Papercut - Simple Desktop SMTP Server

• Mathematics

  • UnitConversion - Expansible Unit Conversion Library for .NET Core and .NET Framework.
  • AutoDiff - A library that provides fast, accurate and automatic differentiation (computes derivative / gradient) of mathematical functions.
  • UnitsNet - Units.NET gives you all the common units of measurement and the conversions between them.
  • UnitConversion - Expansible Unit Conversion Library for .NET Core and .NET Framework.

• Media

  • MetadataExtractor - Extracts metadata from media (images, video, audio) with a simple to use API.

• Misc

  • datatables - Microsoft ASP.NET server-side support and helpers for jQuery DataTables.
  • warden-stack - "health checks" for your applications, resources and infrastructure. Keep your Warden on the watch.
  • AngleSharp - The ultimate angle brackets parser library. It parses HTML5, MathML, SVG and CSS to construct a DOM based on the official W3C specification. Comparable to beautifulsoup4 of python.
  • AgileMapper - AgileMapper is a zero-configuration, highly-configurable object-object mapper with viewable execution plans.
  • AspNetCore Extension Library - ASP.NET Core Extension Library.
  • AutoMapper - Convention-based object-object mapper in .NET.
  • Baget - A lightweight NuGet server.
  • Castle.Core - Castle Core, including Castle DynamicProxy, Logging Services and DictionaryAdapter [http://www.castleproject.org](http://www.castleproject.org).
  • Chessie - Railway-oriented programming for .NET [http://fsprojects.github.io/Chessie](http://fsprojects.github.io/Chessie).
  • CliWrap - Wrapper for command line interfaces.
  • commanddotnet - Model your command line application interface in a class.
  • CommonMark.NET - The implementation of CommonMark specification in C# for converting Markdown documents to HTML.
  • ConsoleTableExt - Fluent library to create table for .NET console application.
  • CoordinateSharp - A library that can quickly format and convert geographic coordinates as well as provide location based sun and moon information (sunset, sunrise, moon illumination, etc...).
  • DinkToPdf - C# .NET Core wrapper for wkhtmltopdf library that uses Webkit engine to convert HTML pages to PDF.
  • dotnet-env - A .NET library to load environment variables from .env files.
  • DotNet.Glob - A fast globbing library for .NET / .NETStandard applications. Outperforms Regex.
  • Dotnet outdated - A .NET Core global tool to display and update outdated NuGet packages in a project
  • Dotnet Serve - Simple command-line HTTP server for .NET Core CLI.
  • Downloader - Downloader is a modern, fluent, asynchronous, testable and portable library for .NET. This is a multipart downloader with asynchronous progress events.
  • Eighty - A simple HTML generation library
  • Enums.NET - Enums.NET is a high-performance type-safe .NET enum utility library
  • FastExpressionCompiler - Fast ExpressionTree compiler to delegate.
  • FluentDocker - Commands, Services and Fluent API for docker, docker-compose & docker-machine, for win/mac/linux and native docker.
  • Fody - Extensible tool for weaving .net assemblies
  • HdrHistogram.NET - High Dynamic Range (HDR) Histogram.
  • httpclient-interception - .NET Standard library for intercepting server-side HTTP dependencies.
  • Humanizer - Humanizer meets all your .NET needs for manipulating and displaying strings, enums, dates, times, timespans, numbers and quantities.
  • Humidifier - Write and maintain AWS Cloudformation templates using C#.
  • impromptu-interface - Static interface to dynamic implementation (duck casting). Uses the DLR combined with Reflect.Emit.
  • JqueryDataTablesServerSide - ASP.NET Core Server Side Processing library for Jquery DataTables with Multiple Column Filtering, Sorting and Pagination at database level with Excel Export and TagHelper support.
  • LibSass Host - .NET wrapper around the [libSass](http://sass-lang.com/libsass) library with the ability to support a virtual file system.
  • NFlags - Simple library to made parsing CLI arguments easy. Library also allow to print usage help "out of box".
  • NReco.LambdaParser - Parses string expressions (formulas, methods calls, conditions) to LINQ expression tree that can be compiled to lambda and evaluated.
  • NYoutubeDL - A simple youtube-dl library for C#/.NET.
  • Otp.NET - An implementation TOTP RFC 6238 and HOTP RFC 4226 in C#.
  • pose - Replace any .NET method (including static and non-virtual) with a delegate
  • ReflectionMagic - Framework to drastically simplify your private reflection code using C# dynamic
  • Relinq - With re-linq, it's now easier than ever to create full-featured LINQ providers.
  • Remote.Linq - Remote Linq is a small and easy to use - yet very powerful - library to translate LINQ expression trees to strongly typed, serializable expression trees and vice versa.
  • ReverseMarkdown - Html to Markdown converter library.
  • PdfReport.Core - PdfReport.Core is a code first reporting engine, which is built on top of the iTextSharp.LGPLv2.Core and EPPlus.Core libraries.
  • Scrutor - Assembly scanning extensions for Microsoft.Extensions.DependencyInjection.
  • Sheller - A .NET library that makes shelling out commands super easy and fluent.
  • 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.
  • 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!
  • Vanara - A set of .NET libraries for Windows implementing PInvoke calls to many native Windows APIs with supporting wrappers.
  • WebEssentials.AspNetCore.ServiceWorker - ASP.NET Core Progressive Web Apps.
  • 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.
  • YoutubeExplode - Ultimate library for extracting metadata and downloading Youtube videos and playlists.
  • Dotnet Script - Run C# scripts from the .NET CLI.
  • markdig - Fast, powerfull, CommonMark compliant, extensible Markdown processor for .NET.
  • FluentValidation - Small validation library for .NET that uses a fluent interface and lambda expressions for building validation rules.
  • readline - Pure C# GNU-Readline like library for .NET/.NET Core.
  • System.Linq.Dynamic.Core - The .NET Standard (.NET Core) version from the System Linq Dynamic functionality.
  • FluentFTP - FTP and FTPS client, with extensive FTP commands, SSL/TLS connections, hashing/checksums and more.
  • PuppeteerSharp - Puppeteer Sharp is a .NET port of the official Node.JS Puppeteer API.
  • Scientist - .NET library for carefully refactoring critical paths. It's a port of GitHub's Ruby Scientist library.
  • SmartFormat.NET - An extensible replacement for string.Format.
  • 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.
  • AdvanceDLSupport - Library to improve P/Invoke-ing native code. Interact with native objects as if they were first class objects.
  • NetCoreBeauty - Simple library to move a .NET Core app runtime components and dependencies into a sub-directory and make it beauty.

• Networking

  • AspNetCore.Proxy - ASP.NET Core Proxies made easy.
  • CurlThin - Lightweight cURL binding library for C# with support for multiple simultaneous transfers through curl_multi interface.
  • NETStandard.HttpListener - HttpListener for .NET Core (NETStandard).
  • SharpPcap - Fully managed, cross platform (Windows, Mac, Linux) .NET library for capturing packets from live and file based devices.
  • Networker - A simple to use TCP and UDP networking library for .NET, designed to be flexible, scalable and FAST.

• Office

  • EPPlus - Create advanced Excel spreadsheets using .NET.
  • npoi - .NET library that can read/write Office formats without Microsoft Office installed. No COM+, no interop.
  • Open-XML-SDK - The Open XML SDK provides tools for working with Office Word, Excel, and PowerPoint documents.

• Operating System

  • CosmosOS - Cosmos is an operating system "construction kit". Build your own OS using managed languages such as C#, VB.NET, and more!

• ORM

  • LINQ to DB (linq2db) - The fastest LINQ database access library offering a simple, lightweight, fast, and type-safe layer between your POCO objects and your database for more than 10 database engines with full SQL support.
  • Chloe - A lightweight and high-performance Object/Relational Mapping(ORM) library for .NET.
  • EFCore.BulkExtensions - EntityFrameworkCore Bulk Batch Extensions for Insert Update Delete Read (CRUD) ops
  • 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.
  • 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.
  • Limebean - Hybrid-ORM, designed to be simple to use and not totally hide SQL, while having all the nice things you expect from an ORM. Inspired by RedBeanPHP.
  • nhibernate-core - NHibernate Object Relational Mapper.
  • NEventStore - Persistence library used to abstract different storage implementations when using event sourcing as storage mechanism. This library is developed with a specific focus on DDD/CQRS applications.
  • NPoco - Simple microORM that maps the results of a query onto a POCO object. Project based on Schotime's branch of PetaPoco.
  • NReco.Data - Lightweight provider-independent DAL for SQL commands generation, CRUD operations and simple POCO mapping.
  • PetaPoco - A tiny ORM-ish thing for your POCO's.
  • RepoDb - A hybrid ORM library for .NET.
  • ServiceStack.OrmLite - Light, simple and fast convention-based POCO ORM.
  • SqlFu - Fast and versatile Micro-ORM.
  • SQLStreamStore - Stream Store library targeting SQL based implementations for .NET.
  • EFCore.Visualizer - View Entity Framework Core query plan directly in Visual Studio.
  • Dapper - Simple object mapper for .NET.
  • Entity Framework Core - Familiar developer experience to previous versions of EF, including LINQ, POCO, and Code First support.
  • MicroOrm.Dapper.Repositories - CRUD for Dapper.
  • Npgsql.EntityFrameworkCore.PostgreSQL - Entity Framework Core provider for PostgreSQL.
  • SmartSql - SmartSql = MyBatis + Cache(Memory | Redis) + ZooKeeper + R/W Splitting +Dynamic Repository ....
  • FreeSql - a convenient ORM in dotnet,supports Mysql, Postgresql, SqlServer, Oracle and Sqlite.

• Profiling

  • Glimpse - Lightweight, open-source, real-time diagnostics and insights profiler for .NET. `Unstable version`
  • MiniProfiler - A simple but effective mini-profiler for ASP.NET websites.

• Query Builders

  • SqlKata - Elegant Sql Query Builder, that supports complex queries, joins, sub queries, nested where conditions, vendor engine targets and more

• Queue and Messaging

  • emitter - Free open source real-time messaging service that connects all devices. This publish-subscribe messaging API is built for speed and security.
  • Restbus - Messaging library for RabbitMq.
  • EasyNetQ - An easy to use .NET API for RabbitMQ.
  • EventStore - The open-source, functional database with Complex Event Processing in JavaScript.
  • MediatR - Simple, unambitious mediator implementation in .NET.
  • MediatR.Extensions.Microsoft.DependencyInjection - MediatR extensions for Microsoft.Extensions.DependencyInjection.
  • Mediator.Net - A simple mediator for .Net for sending command, publishing event and request response with pipelines supported.
  • netmq - 100% native C# implementation of ZeroMQ for .NET.
  • rabbitmq-dotnet-client - RabbitMQ .NET client [https://www.rabbitmq.com](https://www.rabbitmq.com).
  • RawRabbit - Modern .NET framework for communication over RabbitMq.
  • Rebus - Simple and lean service bus implementation for .NET.
  • NServiceBus - NServiceBus is part of the [Particular Service Platform](https://particular.net/service-platform), which contains tools to build, monitor, and debug distributed systems.
  • Restbus - Messaging library for RabbitMq.
  • Silverback - Framework to build event-driven applications (support for Kafka, RabbitMQ, MQTT).
  • Tossit - Simple, easy to use library for distributed job/worker logic. Distributed messages handled by built in RabbitMQ implementation.
  • OpenCQRS - .NET Core library for DDD, CQRS and Event Sourcing with Azure Service Bus integration. Supported database providers for the Command and the Event stores are: DocumentDB, MongoDB, SQL Server, MySQL, PostgreSQL and SQLite.
  • MicroBus - Simple in process mediator for .NET.
  • MQTTnet - MQTTnet is a high performance .NET library for MQTT based communication.

• Reporting

  • FastReport - The open source report generator for .NET Core 2.x/.Net Framework 4.x. FastReport can be used in MVC, Web API applications.

• Scheduler and Job

  • Chroniton.NetCore - Lightweight robust library for running tasks(jobs) on schedules.
  • Coravel - .Net Core meets Laravel: Scheduling, Queuing, etc.
  • FluentScheduler - Automated job scheduler with fluent interface.
  • Gofer.NET - Easy C# API for Distributed Background Tasks/Jobs for .NET Core. Inspired by celery for python.
  • HangfireIO - Easy way to perform fire-and-forget, delayed and recurring tasks inside ASP.NET apps [http://hangfire.io](http://hangfire.io).
  • LiquidState - Efficient asynchronous and synchronous state machines for .NET.
  • NCrontab - Crontab for .NET.
  • stateless - Simple library for creating state machines in C# code.
  • quartznet - Quartz Enterprise Scheduler .NET [http://www.quartz-scheduler.net](http://www.quartz-scheduler.net).

• SDKs

  • consuldotnet - .NET API for Consul.
  • AWS SDK - The Amazon Web Services (AWS) .NET Core SDK components. Each AWS service has its own NuGet package.
  • azure-event-hubs-dotnet - .NET Standard client library for Azure Event Hubs.
  • 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.
  • CakeMail.RestClient - Client for CakeMail's API. Allows you to send transactional emails, bulk emails, manage lists and contacts, etc.
  • DarkSkyCore - A .NET Standard wrapper for the [Dark Sky API](https://darksky.net/dev/docs).
  • Docker.DotNet - .NET (C#) Client Library for Docker API.
  • firebase-admin-dotnet - Firebase Admin .NET SDK
  • Microphone - Lightweight framework to run self hosting REST services using Web Api or NancyFx ontop of a Consul or ETCD cluster.
  • octokit.net - GitHub API client library for .NET.
  • PreStorm - Parallel REST Client for ArcGIS Server.
  • SendGrid-csharp - C# client library for using the full SendGrid API.
  • statsd-csharp-client - .NET Standard compatible C# client to interface with Etsy's excellent [statsd](https://github.com/etsy/statsd) server.
  • tweetinvi - Intuitive .NET C# library to access the Twitter REST and STREAM API.
  • csharp-nats - C# .NET client for the NATS messaging system.
  • google-cloud-dotnet - Google Cloud Client Libraries for .NET.
  • Manatee.Trello - A fully object-oriented .Net wrapper for Trello's RESTful API written in C#.

• Searching

  • Algolia.Search - Repository for the official Algolia .NET client.
  • AutoComplete - Persistent, simple, powerful and portable autocomplete library.
  • Elasticsearch.Net & NEST - Repository for both NEST and Elasticsearch.NET, the two official elasticsearch .NET clients.
  • ElasticsearchCRUD - Elasticsearch .NET API.
  • SearchExtensions - Advanced search capabilities for IQueryable interfaces, such as Entity Framework queries.
  • SimMetrics.Net - A Similarity Metric Library, e.g. from edit distance's (Levenshtein, Gotoh, Jaro etc) to other metrics, (e.g Soundex, Chapman)
  • SolrExpress - Simple and lightweight query .NET library for Solr, in a controlled, buildable and fail fast way.

• Security

  • aspnetcore-security-headers - Middleware for adding security headers to an ASP.NET Core application.
  • HtmlSanitizer - Cleans HTML to avoid XSS attacks.
  • jose-jwt - Library for processing JOSE objects (JWT, JWA, JWS and related).
  • Jwt.Net - Jwt.Net, a JWT (JSON Web Token) implementation for .NET.
  • JWT Simple Server - A lightweight, dynamic jwt server for ASP.NET Core.
  • NWebsec - Security libraries for ASP.NET [http://www.nwebsec.com](http://www.nwebsec.com).
  • reCAPTCHA - reCAPTCHA 2.0 for ASP.NET Core.
  • roslyn-security-guard - Roslyn analyzers that aim to help security audit on .NET applications.
  • OwaspHeaders - .NET Core middleware for injecting the Owasp recommended HTTP Headers for increased security.
  • Security - Middleware for security and authorization of web apps.
  • SecurityHeaders - Small package to allow adding security headers to ASP.NET Core websites.

• Serialization

  • BinarySerializer - Serialization for custom packet and protocol formats, supports bit-twiddling.
  • bond - Cross-platform framework for working with schematized data. It supports cross-language de/serialization and powerful generic mechanisms for efficiently manipulating data. Bond is broadly used at Microsoft in high scale services.