Polly by: Michael Wolfenden App vNext
  • 225 total downloads
  • Latest version: 4.5.0-beta-netstandar-0001
  • Exception Handling Policy Retry Wait Circuit Breaker
Polly is a .NET 3.5 / 4.0 / 4.5 / PCL (Profile 259) / NET Standard 1.0 library that allows developers to express transient exception and fault handling policies such as Retry, Retry Forever, Wait and Retry or Circuit Breaker in a fluent manner.
Polly-Signed by: Michael Wolfenden App vNext
  • 177 total downloads
  • Latest version: 4.5.0-beta-netstandar-0001
  • Exception Handling Policy Retry Wait Circuit Breaker
Polly is a .NET 3.5 / 4.0 / 4.5 / PCL (Profile 259) / NET Standard 1.0 library that allows developers to express transient exception and fault handling policies such as Retry, Retry Forever, Wait and Retry or Circuit Breaker in a fluent manner.
PolySharp by: Sergio Pedri
  • 181 total downloads
  • Latest version: 1.15.0+02753db24d9685e54db06739eb63183d86eb5b62
  • dotnet net netcore netstandard csharp library generator polyfill roslyn
PolySharp provides generated, source-only polyfills for C# language features, to easily use all runtime-agnostic features downlevel
popper.js by: FezVrasta
  • 230 total downloads
  • Latest version: 1.16.1
A kickass library to manage your poppers
Portable.BouncyCastle by: BouncyCastle.Crypto
  • 9 total downloads
  • Latest version: 1.8.1.4
BouncyCastle portable version with support for .NET 4, .NET Standard 1.0-2.0, WP, Silverlight, MonoAndroid, Xamarin.iOS, .NET Core
Portable.ConcurrentDictionary by: Stef Heyenrath
  • 8 total downloads
  • Latest version: 1.0.4
  • Dictionary ConcurrentDictionary Collections System.Collections.Concurrent
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
protobuf-net by: Marc Gravell
  • 364 total downloads
  • Latest version: 2.4.9
  • binary serialization protobuf
Provides simple access to fast and efficient "Protocol Buffers" serialization from .NET applications
QRCoder by: Raffael Herrmann
  • 223 total downloads
  • Latest version: 1.6.0
  • c# csharp qr qrcoder qrcode qr-generator qr-code-generator
QRCoder is a simple library, written in C#.NET, which enables you to create QR codes.
QRCoder.Core by: Afonso Dutra Nogueira Filho
  • 9 total downloads
  • Latest version: 1.0.3
  • c# csharp qr qrcoder qrcode qr-generator qr-code-generator Core NET
QRCoder.Core, written in C#.NET, which enables you to create QR codes Use System.Drawing.Common below 7.0.0.
Quartz by: Marko Lahma
  • 86 total downloads
  • Latest version: 2.6.2
Quartz.NET Scheduling Framework for .NET Platform
QuestPDF by: MarcinZiabek
  • 294 total downloads
  • Latest version: 2025.12.0-alpha0
  • pdf generation creation export merge edit html
Generate and edit PDF documents in your .NET applications using the open-source QuestPDF library and its C# Fluent API. Build invoices, reports and data exports with ease.
RavenDB.Client by: Hibernating Rhinos
  • 34 total downloads
  • Latest version: 5.3.2
  • ravendb client database nosql doc db
RavenDB Client is the client library for accessing RavenDB
ReflectionBridge by: Stef Heyenrath
  • 54 total downloads
  • Latest version: 0.0.13
  • type typeinfo extensions proxy bridge reflection
Provides some extensions which define a bridge for the differences between Type and TypeInfo.
Reloadify3000 by: James Clancey
  • 24 total downloads
  • Latest version: 1.0.8
Hot Reload plugin for Comet
Remotion.Linq by: rubicon IT GmbH
  • 289 total downloads
  • Latest version: 2.2.0
  • re-motion LINQ ExpressionTrees
re-linq Frontend: A foundation for parsing LINQ expression trees and generating queries in SQL or other languages. Key features: - Transforms expression trees into abstract syntax trees resemblying LINQ query expressions (from ... select syntax) - Simplifies many aspects of this tree (sub queries, transparent identifieres, pre-evaluation ...) - Provides basic infrastructure for backend development (e.g. SQL generation) - Provides a framework for user-defined query extensions and transformations
Respond by: Scott Jehl Paul Irish Nicholas Zakas
  • 52 total downloads
  • Latest version: 1.4.2
  • Respond Media Queries
The goal of this script is to provide a fast and lightweight (3kb minified / 1kb gzipped) script to enable responsive web designs in browsers that don't support CSS3 Media Queries - in particular, Internet Explorer 8 and under. It's written in such a way that it will probably patch support for other non-supporting browsers as well (more information on that soon).
RestSharp by: RestSharp Community
  • 126 total downloads
  • Latest version: 105.2.3
  • REST HTTP API JSON XML
Simple REST and HTTP API Client
RhinoMocks by: meisinger ayende
  • 10 total downloads
  • Latest version: 4.0.0-alpha3
  • tdd mocking mocks unittest unittesting
Dynamic mocking framework for .NET
Roslyn.Diagnostics.Analyzers by: Microsoft
  • 701 total downloads
  • Latest version: 5.0.0-1.25277.114
  • Roslyn CodeAnalysis Compiler CSharp VB VisualBasic Diagnostic Analyzers Syntax Semantics
Private analyzers specific to Roslyn repo. These analyzers are not intended for public consumptions outside of the Roslyn repo.
RouteJs.Mvc5 by: Daniel Lo Nigro
  • 75 total downloads
  • Latest version: 2.2.0
  • asp.net mvc asp routing route url ajax jquery javascript js
JavaScript URL routing for ASP.NET MVC. Allows you to use your ASP.NET MVC routes from JavaScript. Please refer to project site (http://dan.cx/projects/routejs) for more details, usage examples and sample code.