PuppeteerSharp by: Darío Kondratiuk

Headless Browser .NET API

QRCoder by: Raffael Herrmann Shane Krueger

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

QRCoder.Core by: Afonso Dutra Nogueira Filho

QRCoder.Core, written in C#.NET, which enables you to create QR codes Use System.Drawing.Common below 7.0.0.

QRCoder-ImageSharp by: Raffael Herrmann Joerg Plenert

QRCoder is a simple library, written in C#.NET, which enables you to create QR codes. Based on ImageSharp to provide plattform independency.

Quartz by: Marko Lahma Quartz.NET

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.

QueryDesigner by: Vladislav Zhukov

QueryDesigner provides way of creating complex IQueryable filtering based on dynamic expression trees.

QuestPDF by: MarcinZiabek

QuestPDF is a modern PDF generation library for C# and .NET. Create invoices, reports, and data exports — a code-first alternative to HTML-to-PDF conversion. Merge and edit documents, generate PDF/A and accessible PDF/UA files, embed ZUGFeRD and Factur-X invoice XML. Source-available with a free Community license.

Quill.Delta by: blushingpenguin nozer

Converts Quill's Delta format to HTML/XHTML

RabbitMQ.Client by: Broadcom

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

Rafty by: Tom Pallister

RAFT consensus implementation

RavenDB.Client by: RavenDB

RavenDB Client is the client library for accessing RavenDB

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.

ReactiveExtensionsSharp by: Darío Kondratiuk

A .NET port of RxJS (Reactive Extensions for JavaScript).

realtime-csharp by: Joseph Schultz <joseph@acupofjose.com>

Realtime-csharp is written as a client library for supabase/realtime.

ReflectionBridge by: Stef Heyenrath

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

Refractored.MvvmHelpers by: James Montemagno

Collection of MVVM Helpers such as ObservableRangeCollection, BaseViewModel, Grouping, and others.