Crc32C.NET by: Robert Važan

Hardware-accelerated CRC-32C (Castagnoli) with super fast software fallback for .NET projects. Don't confuse with ordinary CRC-32. Automatically selects 32-bit or 64-bit embedded native library for maximum performance.

CredentialManagement by: iLya Lozovyy

Credential Management package is a wrapper for the Windows Credential Management API that supports both the old and the new style of UI

CS-Script by: Oleg Shilo

CS-Script engine Class Library for .NET 5 (and higher)

CsvHelper by: Josh Close

A library for reading and writing CSV files. Extremely fast, flexible, and easy to use. Supports reading and writing of custom class objects.

Dapper by: Sam Saffron Marc Gravell Nick Craver

A high performance Micro-ORM supporting SQL Server, MySQL, Sqlite, SqlCE, Firebird etc. Major Sponsor: Dapper Plus from ZZZ Projects.

Dapper-NodaTime by: Matt Johnson

Provides Noda Time support for Dapper

Dapper.StrongName by: Sam Saffron Marc Gravell Nick Craver

A high performance Micro-ORM supporting SQL Server, MySQL, Sqlite, SqlCE, Firebird etc. Major Sponsor: Dapper Plus from ZZZ Projects.

DDay.iCal by: Doug Day DDay Software

Obsolete. Use ical.net: https://www.nuget.org/packages/Ical.Net/

DnsClient by: MichaCo

DnsClient.NET is a simple yet very powerful and high performance open source library for the .NET Framework to do DNS lookups

DocumentFormat.OpenXml by: Microsoft

The Open XML SDK provides tools for working with Office Word, Excel, and PowerPoint documents. It supports scenarios such as: - High-performance generation of word-processing documents, spreadsheets, and presentations. - Populating content in Word files from an XML data source. - Splitting up (shredding) a Word or PowerPoint file into multiple files, and combining multiple Word/PowerPoint files into a single file. - Extraction of data from Excel documents. - Searching and replacing content in Word/PowerPoint using regular expressions. - Updating cached data and embedded spreadsheets for charts in Word/PowerPoint. - Document modification, such as removing tracked revisions or removing unacceptable content from documents.

DiffEngine by: https://github.com/VerifyTests/DiffEngine/graphs/contributors

Launches diff tools based on file extensions. Designed to be consumed by snapshot testing libraries.

coverlet.collector by: tonerdo

Coverlet is a cross platform code coverage library for .NET, with support for line, branch and method coverage.

coverlet.msbuild by: tonerdo

Coverlet is a cross platform code coverage library for .NET, with support for line, branch and method coverage.

DocuSign.eSign.dll by: DocuSign

The Docusign NuGet package makes integrating Docusign into your apps and websites a super fast and painless process. The library is open sourced on GitHub, look for the docusign-esign-csharp-client repository. Join the eSign revolution!

Dapper.Contrib by: Sam Saffron Johan Danforth

The official collection of get, insert, update and delete helpers for Dapper.net. Also handles lists of entities and optional "dirty" tracking of interface-based entities.

DesktopBridge.Helpers by: Matteo Pagani

A simple library that can be used in a Win32 app to detect if it's running as native or inside a AppX / MSIX container.

DocumentFormat.OpenXml.Framework by: Microsoft

The Open XML SDK provides tools for working with Office Word, Excel, and PowerPoint documents. It supports scenarios such as: - High-performance generation of word-processing documents, spreadsheets, and presentations. - Populating content in Word files from an XML data source. - Splitting up (shredding) a Word or PowerPoint file into multiple files, and combining multiple Word/PowerPoint files into a single file. - Extraction of data from Excel documents. - Searching and replacing content in Word/PowerPoint using regular expressions. - Updating cached data and embedded spreadsheets for charts in Word/PowerPoint. - Document modification, such as removing tracked revisions or removing unacceptable content from documents.

CronExpressionDescriptor by: Brady Holt

A library that converts cron expressions into human readable descriptions. Supports multiple languages including: English, Brazillian, Spanish, Norwgian, Turkish, Dutch, Chinese Simplified, Russian, French, German, Ukrainian, Persian (Farsi), Polish, Romanian, Italian, Swedish, Slovenian, Danish, Finnish, Greek, Kazakh and Japanese.

CS-Script.bin by: Oleg Shilo

Class Library assembly for the CS-Script engine. CS-Script is a CLR (Common Language Runtime) based scripting system which uses ECMA-compliant C# as a programming language.

DinkToPdf by: Rok Dvojmoc

.NET Core P/Invoke wrapper for wkhtmltopdf library that uses Webkit engine to convert HTML pages to PDF.