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..

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.

DapperExtensions by: Thad Smith Page Brooks

A small library that complements Dapper by adding basic CRUD operations (Get, Insert, Update, Delete) for your POCOs. For more advanced querying scenarios, Dapper Extensions provides a predicate system.

Dates.Recurring by: Gavyn Riebau

Easily calculate the next recurrence for recurring dates using a fluent syntax

DevExpress.Data by: Developer Express Inc.

Target Platform/Framework: Cross-Platform DevExpress Product Libraries Used: Core Libraries (https://docs.devexpress.com/CoreLibraries) Available in the following DevExpress Subscription(s): Universal, DXperience, WinForms, ASP.NET & Blazor (includes DevExtreme), WPF, DevExtreme Complete, Reporting, Office File API

DevExpress.DataAccess by: Developer Express Inc.

Target Platform/Framework: Cross-Platform DevExpress Product Libraries Used: Core Libraries (https://docs.devexpress.com/CoreLibraries) Available in the following DevExpress Subscription(s): Universal, DXperience, WinForms, ASP.NET & Blazor (includes DevExtreme), WPF, Reporting, Office File API

DevExpress.Reporting.Core by: Developer Express Inc.

Target Platform/Framework: Cross-Platform DevExpress Product Libraries Used: .NET Reporting (https://www.devexpress.com/subscriptions/reporting) Available in the following DevExpress Subscription(s): Universal, DXperience, WinForms, ASP.NET & Blazor (includes DevExtreme), WPF, Reporting

DevExpress.Web by: Developer Express Inc.

Target Platform/Framework: Web DevExpress Product Libraries Used: ASP.NET WebForms UI components (https://www.devexpress.com/webforms) Available in the following DevExpress Subscription(s): Universal, DXperience, ASP.NET & Blazor (includes DevExtreme), Reporting

DevExpress.Win by: Developer Express Inc.

Target Platform/Framework: Desktop DevExpress Product Libraries Used: WinForms UI components (https://www.devexpress.com/winforms) Available in the following DevExpress Subscription(s): Universal, DXperience, WinForms, Reporting

DevExpress.Xpo by: Developer Express Inc.

Target Platform/Framework: Desktop, Web, Mobile DevExpress Product Libraries Used: XPO (.NET ORM Library) (https://www.devexpress.com/xpo) Available in the following DevExpress Subscription(s): Universal, DXperience, WinForms, ASP.NET & Blazor (includes DevExtreme), WPF, DevExtreme Complete, Reporting

DevExtreme.AspNet.Data by: Developer Express Inc.

DevExtreme data layer extension for ASP.NET

DeviceDetector.NET by: totpero

The Universal Device Detection library for .NET that parses User Agents and detects devices (desktop, tablet, mobile, tv, cars, console, etc.), clients (browsers, feed readers, media players, PIMs, ...), operating systems, brands and models. This is a port of the popular PHP device-detector library to C#. For the most part you can just follow the documentation for device-detector with no issue.

DinkToPdf by: Rok Dvojmoc

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

DinkToPdfAll by: Martín José Acosta Santos

A wrapper of DinkToPdfAll that just include x64 and x86 version of the wkhtmltox library.

DinkToPdfCopy by: Michael Faisst

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

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

DNTCaptcha.Core by: Vahid Nasiri

DNTCaptcha.Core is a captcha generator and validator for ASP.NET Core applications.

Docker.DotNet by: Docker.DotNet

Docker.DotNet is a library that allows you to interact with the Docker Remote API programmatically with fully asynchronous, non-blocking and object-oriented code in your .NET applications.

Docker.DotNet.X509 by: Docker.DotNet.X509

Docker.DotNet.X509 is a library that allows you to use certificate authentication with a remote Docker engine programmatically in your .NET applications.