ServiceStack.Text by: Demis Bellot

.NET's fastest JSON, JSV and CSV Text Serializers (3x faster than JSON.NET). Fast, Light, Resilient. Benchmarks at: http://servicestack.net/benchmarks/ Includes the String and Stream functionality for all the ServiceStack projects including: - T.Dump() generic extension method for easy dbugging and introspection of types - WebRequest, List, Dictionary and DateTime extensions

sharpcompress by: Adam Hathcock

SharpCompress is a compression library for .NET/Mono/Silverlight/WP7 that can unrar, decompress 7zip, zip/unzip, tar/untar bzip2/unbzip2 and gzip/ungzip with forward-only reading and file random access APIs. Write support for zip/tar/bzip2/gzip is implemented.

SharpZipLib by: http://www.icsharpcode.net/

#ziplib (SharpZipLib, formerly NZipLib) is a Zip, GZip, Tar and BZip2 library written entirely in C# for the .NET platform. It is implemented as an assembly (installable in the GAC), and thus can easily be incorporated into other projects (in any .NET language).

Shouldly by: Jake Ginnivan Joseph Woodward Simon Cropp

Shouldly - Assertion framework for .NET. The way asserting *Should* be

Simple.OData.Client by: Vagif Abilov David Bond Robert McLaws and contributors.

Simple.OData.Client helps you interact with OData APIs that comply with any version of the OData standard. Modern APIs will likely want to use the Simple.OData.V4.Client package, which has a smaller memory footprint and is optimized for OData V4. Commonly used types: Simple.OData.Client.ODataClient

SimpleInjector by: Simple Injector Contributors

Simple Injector is an easy, flexible and fast dependency injection library that uses best practice to guide your solutions toward the pit of success.

SimpleInjector.Extensions.ExecutionContextScoping by: Simple Injector Contributors

The Execution Context Scoping package adds the 'Execution Context Scope' lifestyle, which allows instances to live within an explicitly defined execution context scope (or logical call context) and get disposed when this scope ends. This scope allows flowing through asynchronous method calls.

SimpleInjector.Packaging by: Simple Injector Contributors

Adds support for packaging sets of related services to allow registering them together. Consumers can implement the IPackage interface and use the RegisterPackages extension method to dynamically add registrations in the supplied list of assemblies.

SixLabors.Core by: Six Labors

Low level primitives for use across Six Labors projects..

SixLabors.Fonts by: Six Labors and contributors

A cross-platform library for loading and laying out for processing and measuring; written in C#

SixLabors.ImageSharp by: Six Labors and contributors

A new, fully featured, fully managed, cross-platform, 2D graphics API for .NET

SixLabors.ImageSharp.Drawing by: Six Labor and contributors

An extension to ImageSharp that allows the drawing of images, paths, and text. This is the official release of ImageSharp.Drawing by the Six Labors team who own the ImageSharp codebase.

SixLabors.Shapes by: Scott Williams and contributors

Polygon manipulation/merging and interrogation library. Its a fully manged netstandard library so should work everywhere.

SixLabors.Shapes.Text by: Scott Williams and contributors

Allows generating glyphs for text and a font for manipulation using SixLabors.Shapes

smtpapi by: Brandon West

Easily build SendGrid SMTPAPI headers.

SpecFlow by: SpecFlow Team

SpecFlow aims at bridging the communication gap between domain experts and developers by binding business readable behavior specifications to the underlying implementation. Our mission is to provide a pragmatic and frictionless approach to Acceptance Test Driven Development and Behavior Driven Development for .NET projects today.

SpecFlow.Assist.Dynamic by: www.marcusoft.net - Marcus Hammarberg

Adds support for dynamic instances and sets from SpecFlow tables

SpecFlow.CustomPlugin by: TechTalk

Package for writing custom extensions for SpecFlow.

SpecFlow.MsTest by: SpecFlow Team

Package to setup SpecFlow for use with MsTest v2.

SpecFlow.NUnit by: SpecFlow Team

Package to use SpecFlow with NUnit 3.13 and later