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.Extended by: LoreSoft

[Deprecated] Use Entity Framework Plus instead: http://entityframework-plus.net/ No longer supported since 2015

EPPlus by: EPPlus Software AB

A spreadsheet library for .NET framework and .NET core

EPPlus.Interfaces by: EPPlus.Interfaces

Package Description

EPPlus.System.Drawing by: EPPlus.System.Drawing

Package Description

Esprima by: Sebastien Ros

Standard-compliant ECMAScript 2016 parser (also popularly known as JavaScript or ES6).

ExcelDataReader by: ExcelDataReader developers

Lightweight and fast library written in C# for reading Microsoft Excel files (XLS, XLSX).

ExcelDataReader.DataSet by: ExcelDataReader developers

ExcelDataReader extension for reading Microsoft Excel files into System.Data.DataSet.

ExcelNumberFormat by: ExcelNumberFormat developers

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

ExCSS by: Tyler Brinks

ExCSS is a CSS 3 parser for .NET. ExCSS makes it easy to read and parse stylesheets into a friendly object model with full LINQ support.

Expecto by: Henrik Feldt, Logibit AB, formerly @mausch

Expecto is a smooth test framework for F#, cloned from Fuchu with added functionality for making it easier to use.

Expression.Blend.Sdk by: Microsoft

Contains System.Windows.Interactivity for: - WPF 4.0, 4.5 -Silverligt 4.0, 5.0 - Windows Phone 7.1, 8.0 - Windows Store 8, 8.1

Extended.Wpf.Toolkit by: Xceed

Extended WPF Toolkit is the number one collection of WPF controls, components and utilities for creating next generation Windows applications. Provides 48 controls, all offered under the Xceed Software Inc Community License. v5.1 provides 12 bug fixes and improvements. Documentation, source, and discussions are hosted on Github at https://github.com/xceedsoftware/wpftoolkit. Check out the Plus Edition to support the project, get more controls and features, and work with a version a few releases ahead of the free releases.

Fable.Core by: Alfonso García-Caro Núñez

Fable Core Library

FakeItEasy by: Patrik Hägne, FakeItEasy contributors

It's faking amazing! The easy mocking library for .NET that works great in C# and VB.NET alike. No need to know the difference between a stub, a mock or a spy, everything's a fake! The easy to use, refactoring friendly API makes faking a breeze.

Fare by: Nikos Baxevanis

.NET port of dk.brics.automaton - Project Fare is an effort to bring a DFA/NFA (finite-state automata) implementation from Java to .NET. There are quite a few implementations available in other languages today. This project aims to fill the gap in .NET.

fasterflect by: Buu Nguyen, Morten Mertner

.NET library that improves your productivity and application performance when performing reflection operations. It allows you to perform metadata lookup and reflection invocation intuitively while achieving greater performance than the built-in .NET Reflection.

FastExpressionCompiler.src by: Maksim Volkau

FastExpressionCompiler is 10-40x times faster than Expression.Compile()

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.

FastMember.Signed 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.