OpenHtmlToPdf by: Timo Vilppu

.NET library for rendering HTML documents to PDF format.

OpenLayers by: OpenLayers Team

Open source javascript based mapping API.

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

OpenTracing by: The OpenTracing Authors

This library is a .NET implementation of the OpenTracing API. To fully understand this platform API, it's helpful to be familiar with the OpenTracing project and terminology more generally. For the time being, mild backwards-incompatible changes may be made without changing the major version number. As OpenTracing and opentracing-csharp mature, backwards compatibility will become more of a priority.

OpenWeatherMap by: Joan Caron

This project is a fully asynchronous .NET library for interacting with the great OpenWeatherMap API.

OpenXmlPowerTools by: Eric White

The Open XML PowerTools provides guidance and example code for programming with Open XML Documents (DOCX, XLSX, and PPTX). It is based on, and extends the functionality of the Open XML SDK. It supports scenarios such as: •Splitting DOCX/PPTX files into multiple files. •Combining multiple DOCX/PPTX files into a single file. •Populating content in template DOCX files with data from XML. •High-fidelity conversion of DOCX to HTML. •Searching and replacing content in DOCX/PPTX using regular expressions. •Managing tracked-revisions, including detecting tracked revisions, and accepting tracked revisions. •Updating Charts in DOCX/PPTX files, including updating cached data, as well as the embedded XLSX. •Retrieving metrics from DOCX files, including the hierarchy of styles used, the languages used, and the fonts used. •Writing XLSX files using far simpler code than directly writing the markup, including a streaming approach that enables writing XLSX files with millions of rows.

OpenXMLSDK-MOT by: Microsoft Open Technologies Inc.

https://github.com/OfficeDev/Open-XML-SDK

Oracle.ManagedDataAccess by: Oracle

ODP.NET, Managed Driver is a 100% native code .NET Framework driver for Oracle Database. No additional Oracle Client software is required to be installed to connect to Oracle Database.

org.matheval by: matheval.org

Matheval is a mathematical expressions evaluator library for .NET. Allows to evaluate mathematical, boolean, string and datetime expressions on the fly. Official document and usage examples: https://matheval.org/math-expression-eval-for-c-sharp/

Owin by: OWIN startup components contributors

OWIN IAppBuilder startup interface

PagedList by: Troy Goode

PagedList makes it easier for .Net developers to write paging code. It allows you to take any IEnumerable(T) and by specifying the page size and desired page index, select only a subset of that list. PagedList also provides properties that are useful when building UI paging controls.

PasswordGenerator by: Paul Seal

A .NET Standard library which generates random passwords with different settings to meet the OWASP requirements

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.

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.

PCSC by: Daniel Mueller

Contains classes to access the Personal Computer/Smart Card Resource Manager using the system's native PC/SC API. The library is written to run on multiple platforms (.Net Framework, .Net Core or Mono using PCSC Lite).

PCSC.Iso7816 by: Daniel Mueller

Implements partial ISO7816 support (APDU etc.) for PCSC.

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