PInvoke.Kernel32 by: Andrew Arnott

P/Invoke methods for the Windows Kernel32.dll.

PInvoke.NCrypt by: Andrew Arnott

P/Invoke methods for the Windows NCrypt.dll.

PInvoke.Windows.Core by: Andrew Arnott

P/Invoke types for common Windows APIs.

PolyType by: Eirik Tsarpalis

Practical generic programming for C#

Portable.BouncyCastle by: Claire Novotny

BouncyCastle portable version with support for .NET 4, .NET Standard 2.0

Portable.ConcurrentDictionary by: Stef Heyenrath

This is a .NET Standard 1.0, .NET 2.0, .NET 3.5, Silverlight 5.0 and Windows Phone Silverlight 8.0 & 8.1 backport from System.Collections.Concurrent.ConcurrentDictionary as defined in .NET Core

Portable.System.DateTimeOnly by: Oleg Rakhmatulin

DateOnly and TimeOnly types for .NET versions before 6.0

protobuf-net by: Marc Gravell

Provides simple access to fast and efficient "Protocol Buffers" serialization from .NET applications

protobuf-net.Core by: Marc Gravell

The protobuf-net serialization engine and build-time tooling; most projects should reference protobuf-net, which adds the runtime type model

PusherServer by: Pusher

Pusher .NET library for interacting with the HTTP API

QRCoder by: Raffael Herrmann, Shane Krueger

QRCoder is a simple library, written in C#.NET, which enables you to create QR codes.

Quartz by: Marko Lahma, Quartz.NET

Quartz Scheduling Framework for .NET

Quartz.AspNetCore by: Lewis Zou, Marko Lahma, Quartz.NET

Quartz.NET ASP.NET Core integration; Quartz Scheduling Framework for .NET

Quartz.Extensions.DependencyInjection by: Marko Lahma, Quartz.NET

Folded into Quartz in 4.0: AddQuartz, QuartzOptions and the rest live in the Quartz package now. This package is empty and exists only so a grouped dependency update can move to 4.x - remove the reference, and see the migration guide.

Quartz.Extensions.Hosting by: Marko Lahma, Quartz.NET

Folded into Quartz in 4.0: AddQuartzHostedService, QuartzHostedService and QuartzHostedServiceOptions live in the Quartz package now. This package is empty and exists only so a grouped dependency update can move to 4.x - remove the reference, and see the migration guide.

Quartz.Serialization.Json by: Marko Lahma, Quartz.NET

Renamed to Quartz.Serialization.Newtonsoft in 4.0. This package is empty and exists only so a grouped dependency update can move to 4.x - reference Quartz.Serialization.Newtonsoft instead, and see the migration guide.

RBush by: viceroypenguin

Spatial Index data structure; used to make it easier to find data points on a two dimensional plane.

RBush.Signed by: viceroypenguin

Spatial Index data structure; used to make it easier to find data points on a two dimensional plane.

ReflectionBridge by: Stef Heyenrath

Provides some extensions which define a bridge for the differences between Type and TypeInfo.

Remote.Linq by: Christof Senn

Remote Linq is a small and easy to use - yet very powerful - library to translate linq expression trees to strongly typed, serializable object trees and vice versa. It provides functionality to send arbitrary linq queries to a remote service to be applied and executed against any enumerable or queryable data source.