DotNetAnalyzers.PublicApiAnalyzer by: Sam Harwell et. al.

An analyzer for packages with public APIs.

DotNetAnalyzers.PublicApiAnalyzer.Unstable by: Sam Harwell et. al.

An analyzer for packages with public APIs.

DotNetOpenAuth by: Andrew Arnott

Add OpenID 1.1/2.0 and OAuth 1.0(a)/2.0 authentication and authorization functionality for client and server applications. This allows your (web) application to issue identities or accept issued identites from other web applications, and even access your users' data on other services.

DotNetOpenAuth.Core by: Andrew Arnott

This package contains shared code for other NuGet packages, and contains no public API in and of itself.

DotNetOpenAuth.OAuth.Core by: Andrew Arnott

This package contains shared code for other NuGet packages, and contains no public API in and of itself.

DotNetOpenAuth.OpenId.Core by: Andrew Arnott

This package contains shared code for other NuGet packages, and contains no public API in and of itself.

DotNetOpenAuth.OpenId.Provider by: Andrew Arnott

Allow your customers to take their identities from your site with them as they visit other sites that accept OpenID as relying parties. Set up single-sign-on solutions within your organization using a standards-based, accepted protocol for authentication delegation.

DotNetOpenAuth.OpenId.RelyingParty by: Andrew Arnott

Increase conversion rates to your web site by lowering the bar to create an account with your site, by allowing customers to use accounts they already have with other sites, such as Google and Yahoo!

DotNetZip by: Dino Chiesa

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

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.

elmah by: Atif Aziz

ELMAH with initial configuration for getting started quickly. ELMAH (Error Logging Modules and Handlers) is an application-wide error logging facility that is completely pluggable. It can be dynamically added to a running ASP.NET web application, or even all ASP.NET web applications on a machine, without any need for re-compilation or re-deployment.

elmah.corelibrary by: Atif Aziz

Core library for ELMAH (Error Logging Modules and Handlers) without any configuration.

EmailValidation by: Jeffrey Stedfast

A simple (but correct) .NET class for validating email addresses. Supports mail addresses as defined in rfc5322 as well as the new Internationalized Mail Address standards (rfc653x).

EntityFramework by: Microsoft

Entity Framework 6 (EF6) is a tried and tested object-relational mapper for .NET with many years of feature development and stabilization.

EntityFramework.Migrations by: Microsoft

Legacy package, Migrations is now included in the EntityFramework package.

Enums.NET by: Tyler Brinkley

Enums.NET is a high-performance type-safe .NET enum utility library

EnyimMemcached by: Attila Kiskó

Memcached client library

ExcelNumberFormat by: ExcelNumberFormat developers

.NET library to parse ECMA-376 number format strings and format values like Excel and other spreadsheet softwares.

FastEndpoints.Swagger by: FastEndpoints

Swagger support for FastEndpoints.

FastMember by: Marc Gravell

In .NET reflection is slow... well, kinda slow. If you need access to the members of an arbitrary type, with the type and member-names known only at runtime - then it is frankly hard (especially for DLR types). This library makes such access easy and fast.