PdfPig
                    
                    by: UglyToad
                
                - 48 total downloads
 - Latest version: 0.0.11
 
                    Reads text content from PDF documents and supports document creation. Apache 2.0 licensed.
                
            
                    
                        PdfSharp
                    
                    by: empira SoftwareGmbH
                
                - 13 total downloads
 - Latest version: 1.3.0
 
                    PDFsharp is the Open Source .NET library that easily creates and processes PDF documents on the fly from any .NET language. The same drawing routines can be used to create PDF documents, draw on the screen, or send output to any printer.
                
            
                    
                        PDFsharp
                    
                    by: empira Software GmbH
                
                - 288 total downloads
 - Latest version: 1.51.5185-beta
 
                    PDFsharp is the Open Source .NET library that easily creates and processes PDF documents on the fly from any .NET language. The same drawing routines can be used to create PDF documents, draw on the screen, or send output to any printer.
This is the PDFsharp PDF Core package. See Project Information for details.
                
            
                    
                        PDFsharp-gdi
                    
                    by: empira Software GmbH
                
                - 137 total downloads
 - Latest version: 1.51.5185-beta
 
                    PDFsharp is the Open Source .NET library that easily creates and processes PDF documents on the fly from any .NET language. The same drawing routines can be used to create PDF documents, draw on the screen, or send output to any printer.
This is the PDFsharp GDI package. See Project Information for details.
                
            
                    
                        PDFsharp-MigraDoc
                    
                    by: empira Software GmbH
                
                - 146 total downloads
 - Latest version: 1.51.5186-beta
 
                    MigraDoc Foundation - the Open Source .NET library that easily creates documents based on an object model with paragraphs, tables, styles, etc. and renders them into PDF or RTF.
This is the MigraDoc PDF Core package. See Project Information for details.
                
            
                    
                        PDFsharp-MigraDoc-GDI
                    
                    by: empira Software GmbH
                
                - 26 total downloads
 - Latest version: 1.32.4334
 
                    MigraDoc Foundation - the Open Source .NET library that easily creates documents based on an object model with paragraphs, tables, styles, etc. and renders them into PDF or RTF.
This is PDFsharp and MigraDoc based on GDI+. See Project Information for details.
                
            
                    
                        PDFsharp-MigraDoc-gdi
                    
                    by: empira Software GmbH
                
                - 189 total downloads
 - Latest version: 1.51.5186-beta
 
                    MigraDoc Foundation - the Open Source .NET library that easily creates documents based on an object model with paragraphs, tables, styles, etc. and renders them into PDF or RTF.
This is the MigraDoc GDI package. See Project Information for details.
                
            
                    
                        PlaywrightSharp
                    
                    by: Darío Kondratiuk
                
                - 13 total downloads
 - Latest version: 0.111.1
 
                    PlaywrightSharp is a .NET library to automate Chromium, Firefox and WebKit with a single API. Playwright is built to enable cross-browser web automation that is ever-green, capable, reliable and fast.
                
            
                    
                        PolySharp
                    
                    by: Sergio Pedri
                
                - 229 total downloads
 - Latest version: 1.15.0+02753db24d9685e54db06739eb63183d86eb5b62
 
                    PolySharp provides generated, source-only polyfills for C# language features, to easily use all runtime-agnostic features downlevel
                
            
                    
                        popper.js
                    
                    by: FezVrasta
                
                - 286 total downloads
 - Latest version: 1.16.1
 
                    A kickass library to manage your poppers
                
            
                    
                        Portable.BouncyCastle
                    
                    by: BouncyCastle.Crypto
                
                - 11 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
                
            
                    
                        protobuf-net
                    
                    by: Marc Gravell
                
                - 27 total downloads
 - Latest version: 2.0.0.480
 
                    Protocol Buffers is the name of the binary serialization format used by Google for much of their data communications. It is designed to be: small in size - efficient data storage (far smaller than xml) cheap to process - both at the client and server platform independent - portable between different programming architectures extensible - to add new data to old messages. protobuf-net is a .NET implementation of this, allowing you to serialize your .NET objects efficiently and easily. It is compatible with most of the .NET family, including .NET 2.0/3.0/3.5/4.0, .NET CF 2.0/3.5, Mono 2.x, Silverlight, etc.
                
            
                    
                        QRCoder.Core
                    
                    by: Afonso Dutra Nogueira Filho
                
                - 13 total downloads
 - Latest version: 1.0.3
 
                    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
                
                - 91 total downloads
 - Latest version: 2.6.2
 
                    Quartz.NET Scheduling Framework for .NET Platform
                
            
                    
                        QuestPDF
                    
                    by: MarcinZiabek
                
                - 422 total downloads
 - Latest version: 2025.12.0-alpha2
 
                    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
                
                - 38 total downloads
 - Latest version: 5.3.2
 
                    RavenDB Client is the client library for accessing RavenDB
                
            
                    
                        Reloadify3000
                    
                    by: James Clancey
                
                - 45 total downloads
 - Latest version: 1.0.8
 
                    Hot Reload plugin for Comet
                
            
                    
                        Remotion.Linq
                    
                    by: rubicon IT GmbH
                
                - 234 total downloads
 - Latest version: 2.2.0
 
                    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
                
                - 64 total downloads
 - Latest version: 1.4.2
 
                    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).
                
            
                    
                        RhinoMocks
                    
                    by: meisinger  ayende
                
                - 14 total downloads
 - Latest version: 4.0.0-alpha3
 
                    Dynamic mocking framework for .NET
                
            
                    
                        Roslyn.Diagnostics.Analyzers
                    
                    by: Microsoft
                
                - 816 total downloads
 - Latest version: 5.0.0-1.25277.114
 
                    Private analyzers specific to Roslyn repo. These analyzers are not intended for public consumptions outside of the Roslyn repo.