SharpZipLib by: ICSharpCode

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

Should by: Eric Hexter, Tim Scott

The Should Assertion Library provides a set of extension methods for test assertions for AAA and BDD style tests. It provides assertions only, and as a result it is test runner agnostic. The assertions are a direct fork of the xUnit test assertions. This project was born because test runners Should be independent of the assertions!

Shouldly by: Jake Ginnivan, Joseph Woodward, Simon Cropp

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

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 fonts 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 Labors and contributors

An extension to ImageSharp that allows the drawing of images, paths, and text.

SixLabors.Shapes by: Six Labors and contributors

Fully managed polygon manipulation/merging and interrogation library targeting netstandard.

SixLabors.Shapes.Text by: Six Labors and contributors

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

SkiaSharp by: Microsoft

SkiaSharp is a cross-platform 2D graphics API for .NET platforms based on Google's Skia Graphics Library. It provides a comprehensive 2D API that can be used across mobile, server and desktop models to render images.

SkiaSharp.NativeAssets.macOS by: Microsoft

SkiaSharp is a cross-platform 2D graphics API for .NET platforms based on Google's Skia Graphics Library. It provides a comprehensive 2D API that can be used across mobile, server and desktop models to render images.

SkiaSharp.NativeAssets.Win32 by: Microsoft

SkiaSharp is a cross-platform 2D graphics API for .NET platforms based on Google's Skia Graphics Library. It provides a comprehensive 2D API that can be used across mobile, server and desktop models to render images.

SkiaSharp.Views by: Microsoft

SkiaSharp Views & Layers are a set of platform-specific views and containers that can be used to draw on the screen.

SkiaSharp.Views.Desktop.Common by: Microsoft

SkiaSharp Views & Layers are a set of platform-specific views and containers that can be used to draw on the screen.

SkiaSharp.Views.Gtk2 by: Microsoft

SkiaSharp Views & Layers are a set of platform-specific views and containers that can be used to draw on the screen.

SkiaSharp.Views.WindowsForms by: Microsoft

SkiaSharp Views & Layers are a set of platform-specific views and containers that can be used to draw on the screen.

SkiaSharp.Views.WPF by: Microsoft

SkiaSharp Views & Layers are a set of platform-specific views and containers that can be used to draw on the screen.

smtpapi by: Brandon West

Easily build SendGrid SMTPAPI headers.

Snappy.NET by: Robert Važan

Snappy is an extremely fast compressor (250MB/s) and decompressor (500MB/s). Snappy.NET is a P/Invoke wrapper around native Snappy, which additionally implements Snappy framing/streaming format.

SocketIOClient by: HeroWong

socket.io-client implemention for .NET