coverlet.collector by: tonerdo

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

CronExpressionDescriptor by: Brady Holt

A library that converts cron expressions into human readable strings.

Dapper by: Sam Saffron Marc Gravell

A high performance Micro-ORM supporting Sql Server, MySQL, Sqlite, SqlCE, Firebird etc..

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.

DH.NCode by: 湖北登灏科技有限公司

高性能 .NET 数据中间件（超级ORM），聚焦添删改查与海量数据，内置多级缓存、自动迁移、分表分库、强类型查询与跨库迁移。

DH.NCore by: 湖北登灏科技有限公司

Core library of NewLife framework. Provides high-performance infrastructure for building scalable applications: logging (file/network), configuration (XML/JSON/HTTP), cache (memory/distributed), network (TCP/UDP/HTTP/WebSocket), serialization (binary/XML/JSON), APM tracing, IoC container, actor model, timer scheduler, plugin framework, and more. Supports .NET Framework 4.5 to .NET 10. 核心组件库，为构建可扩展应用程序提供高性能基础设施。提供日志（文件/网络）、配置（XML/JSON/HTTP）、缓存（内存/分布式）、网络（TCP/UDP/HTTP/WebSocket）、序列化（Binary/XML/JSON）、APM性能追踪、对象容器、并行模型、定时调度、插件框架等。支持.NET Framework 4.5至.NET 10全版本。

DH.NCube.Core by: 湖北登灏科技有限公司

Web快速开发平台，搭建管理后台，灵活可扩展！内部集成了用户权限管理、模板继承、SSO登录、OAuth服务端、数据导出与分享等多个功能模块，在真实项目中经历过单表100亿数据添删改查的考验。

DH.SignalR by: 湖北登灏科技有限公司

用于DH框架的基于SignalR的实时推送库

DiffPlex by: Matthew Manela

DiffPlex is a diffing library that allows you to programatically create text diffs. DiffPlex is a fast and tested library.

diskann-garnet by: DiskANN Team

DiskANN FFI and Data Provider for Garnet

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.

DotNetCore.NPOI by: NCC Savorboard

A .NET library for reading and writing Microsoft Office binary and OOXML file formats.

DotNetZip by: Dino Chiesa

DotNetZip is an easy-to-use, FAST, FREE class library and toolset for manipulating zip files or folders.

DynamicLanguageRuntime by: DLR Contributors Microsoft

The Dynamic Language Runtime enables language developers to more easily create dynamic languages for the .NET platform.

Elasticsearch.Net by: Elasticsearch Inc. and contributors

Exposes all the api endpoints but leaves you in control of building the request and response bodies. Comes with built in cluster failover/connection pooling support.

EMGU.CV by: Emgu Corporation

Emgu CV is a cross platform .Net wrapper to the OpenCV image processing library. Allowing OpenCV functions to be called from .NET compatible languages such as C#, VB, VC++, IronPython etc.

Emgu.CV.runtime.mini.windows by: Emgu Corporation

This package contains the native runtime of Emgu CV for Windows

Emgu.CV.runtime.windows by: Emgu Corporation

This package contains the native runtime of Emgu CV for Windows

Emgu.runtime.windows.msvc.rt.arm64 by: Emgu Corporation

This package contains the native arm64 MSVC runtime for Windows

Emgu.runtime.windows.msvc.rt.x64 by: Emgu Corporation

This package contains the native x64 MSVC runtime for Windows