One framework for creating powerful cross-platform games.

Json.NET is a popular high-performance JSON framework for .NET

An easy way to perform background job processing in .NET and .NET Core applications. No Windows Service or separate process required

Simple REST and HTTP API Client for .NET

Incredibly simple real-time web for .NET

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

Extensions to LINQ to Objects

A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Targets .NET Framework 4.7, as well as .NET Core 2.1, .NET …

Math.NET Numerics

.NET's leading C# Redis Client

Fast .NET JSON (De)Serializer, Built On Sigil

Add-on feature for Entity Framework

Open-source alternative to ILMerge

ASP.NET Web API rate limiter for IIS and Owin hosting

.NET's fastest JSON, JSV and CSV Text Serializers

Microsoft.FeatureManagement provides standardized APIs for enabling feature flags within applications. Utilize this library to secure a consistent experience when developing applications that use p…

Microsoft's OWIN implementation, the Katana project

This is a research prototype of the Dryad and DryadLINQ data-parallel processing frameworks running on Hadoop YARN.

Fitbit .NET API Client Library

A Comet / Bayeux implementation for ASP.NET

OpenFeature Providers and Hooks for .NET

Math.NET LinqAlgebra - computer algebra based on linq expressions

C# GitHub Api v3

StacMan is a .NET client for Stack Exchange API v2

VDS.Common is a lightweight, dependency-free library of useful advanced data structures such as Trees, Tries and indexing tailored dictionaries.

Full automatic ILRepack executor on .NET, .NET Core and .NET Framework environments.

Fluent interface for C# NUnit assertions

Native Providers for Math.NET Numerics (obsolete, now included in mainline repo)

Data IO for Math.NET Numerics (obsolete, now included in mainline repo)