Polly.Contrib.WaitAndRetry by: Grant Dickinson App vNext

Polly.Contrib.WaitAndRetry is an extension library for Polly containing helper methods for a variety of wait-and-retry strategies.

Polly.Core by: Michael Wolfenden App vNext

Polly.Core is a .NET resilience and transient-fault-handling library that allows developers to express resilience strategies such as Retry, Circuit Breaker, Hedging, Timeout, Chaos and Fallback in a fluent and thread-safe manner.

Polly.Extensions.Http by: App vNext

Polly.Extensions.Http is an extensions package containing opinionated convenience methods for configuring Polly policies to handle transient faults typical of calls through HttpClient.

PolySharp by: Sergio Pedri

PolySharp provides generated, source-only polyfills for C# language features, to easily use all runtime-agnostic features downlevel

Pomelo.EntityFrameworkCore.MySql by: Laurents Meyer Caleb Lloyd Yuko Zheng

Pomelo's MySQL database provider for Entity Framework Core.

Pomelo.EntityFrameworkCore.MySql.Json.Newtonsoft by: Laurents Meyer Caleb Lloyd Yuko Zheng

JSON support using Newtonsoft.Json (JSON.NET) for Pomelo's MySQL provider for Entity Framework Core.

Pomelo.JsonObject by: Pomelo.JsonObject

MySQL provider for Entity Framework Core

popper.js by: FezVrasta

A kickass library to manage your poppers

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.JWT by: Mitja Bombac

JWT (JSON Web Token) Portable Implementation for .NET 4.5+ (Public Domain). Supported algorithms: HMAC signatures with HS256, HS384 and HS512.

Pragmastat by: Andrey Akinshin

Pragmatic Statistical Toolkit

protobuf-net by: Marc Gravell

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

protobuf-net.Core by: Marc Gravell

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

Protobuf.Text by: Kerry Jiang and other contributors

Text format support for google's protobuf C# library

QRCoder by: Raffael Herrmann Shane Krueger

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

RabbitMQ.Client by: Broadcom

The RabbitMQ .NET client is the official client library for C# (and, implicitly, other .NET languages)

Radzen.Blazor by: Radzen Ltd.

Radzen Blazor is the most sophisticated free UI component library for Blazor, featuring 110+ native components including DataGrid, Scheduler, Charts, and advanced theming with full support for Material Design and Fluent UI.

Razorvine.Pickle by: Irmen de Jong

A feature complete pickle protocol implementation (Python's builtin serialization mechanism)

RBush by: viceroypenguin

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