OneOf by: Harry McIntyre

F# style discriminated unions for C#, using a custom type OneOf<T0, ... Tn> which holds a single value and has a .Match(...) method on it for exhaustive matching. Simple but powerful.

OpenCvSharp4.runtime.win by: shimat

Internal implementation package for OpenCvSharp to work on Windows.

OpenIddict.Core by: Kévin Chalet

OpenIddict's core components, used to manage the applications, authorizations, scopes and tokens stored in the database.

OpenIddict.EntityFrameworkCore.Models by: Kévin Chalet

Relational entities for the Entity Framework Core stores.

OpenPop by: OpenPop

POP3 Mail Library

OpenTelemetry by: OpenTelemetry Authors

OpenTelemetry .NET SDK

OpenTelemetry.Api by: OpenTelemetry Authors

OpenTelemetry .NET API

OpenTelemetry.Exporter.OpenTelemetryProtocol by: OpenTelemetry Authors

OpenTelemetry protocol exporter for OpenTelemetry .NET

OpenTelemetry.Instrumentation.Http by: OpenTelemetry Authors

Http instrumentation for OpenTelemetry .NET

OpenTelemetry.Instrumentation.SqlClient by: OpenTelemetry Authors

SqlClient instrumentation for OpenTelemetry .NET

OpenXmlSdk by: Microsoft

An unofficial package of Microsoft's OpenXML SDK. If anyone has a concern about this, please contact me! Description from Microsoft: The Open XML SDK 2.0 simplifies the task of manipulating Open XML packages and the underlying Open XML schema elements within a package. The Open XML SDK 2.0 encapsulates many common tasks that developers perform on Open XML packages, so that you can perform complex operations with just a few lines of code.

Owin by: OWIN startup components contributors

OWIN IAppBuilder startup interface

PCLCrypto by: Andrew Arnott

PCL Crypto provides a consistent, portable set of crypto APIs for .NET 4.5, Windows Phone 8.0 SL & 8.1 Xaml, Windows Store, Xamarin.iOS, Xamarin.Android. This makes it easier to create cross-platform .NET libraries and apps. Crypto functionality includes asymmetric and symmetric encryption and signatures, and key derivation. PCLCrypto calls into each native platform's crypto API for maximum performance. For RSA operations this produces a 2-100X improvement in performance on Android and iOS over using the standard RSACryptoServiceProvider API.

PCLStorage by: Daniel Plaisted

PCL Storage provides a consistent, portable set of local file IO APIs for .NET, Windows Phone, Windows Store, Xamarin.iOS, Xamarin.Android, and Silverlight. This makes it easier to create cross-platform .NET libraries and apps.

PDF.Core by: Iron Software https://IronPdf.com

IronPDF for .Net Core 2.x and 3.x allows developers to create, edit and extract PDF content within .Net Core Applications & Websites. The Iron PDF Core library takes the frustration out of generating PDF documents by not relying on proprietary APIs. "Html-To-Pdf" renders pixel-perfect PDFs from open standard document types: HTML, JS, CSS, JPG, PNG, GIF, and SVG. In short, it uses skills that developers already posses. Key features include: * "Html-To-Pdf" creates PDF files from HTML, CSS, JavaScript, and Images. * "Url-To-Pdf" generates PDFs from existing html pages by simply providing their URL. * "Image-To-PDF" creates PDF documents from image files. * PDF to Image functionality can render PDF documents to image files. * Extract text and images from existing PDFs. * Create, Fill and read data from PDF forms. * Merge, Split and Manipulate PDFs to edit PDF structure and content. * Add Page Numbers, Headers, Footers, Watermarks, Tables, Text and Image Assets. * Edit, Stamp and Watermark PDF files with text, images and HTML * Apply HTML or PDF backgrounds to PDF pages * Sign PDF files with digital certificates IronPDF can be used within ASP.NET projects, MVC, Web Services, Console & Desktop Applications. Requires .Net Core 2.x, 3.x or higher. Supports Windows, Ubuntu, Debian, CentOS, BSD, MacOS and Azure platforms. Licensing & Support available for commercial deployments. For code examples, documentation & more visit http://ironpdf.com For support please email us at developers@ironsoftware.com

PdfLibCore by: Jan Baarssen

PdfLib CORE is a fast PDF editing and reading library for modern .NET core applications.

PdfSharpCore by: Stefan Steiger and Contributors

PdfSharp for .NET Core PdfSharpCore is a partial port of PdfSharp.Xamarin for .NET Core Additionally MigraDoc has been ported as well (from version 1.32). Images have been implemented with ImageSharp from https://www.nuget.org/packages/SixLabors.ImageSharp

PInvoke.BCrypt by: Andrew Arnott

P/Invoke methods for the Windows BCrypt.dll.

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.