EnvDTE80 by: Microsoft

A member of the Visual Studio SDK

envdte80 by: Microsoft

A member of the Visual Studio SDK

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

EventStore.Client by: Event Store Ltd

The client API for Event Store. Get the open source or commercial versions of Event Store server from https://eventstore.com/

ExcelNumberFormat by: ExcelNumberFormat developers

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

ExpressionTreeToString by: Zev Spitz

String representations of expression trees or expression tree parts - C#, Visual Basic, Expression factory method calls, DebugView

ExtentReports by: anshooarora

Extent Reporting Framework, Community Edition

Facebook by: Outercurve Foundation

The Facebook SDK for .NET helps developers build web, desktop, phone and Windows Store applications that integrate with Facebook.

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.

Faker.Net by: Ben Smith Ollie Riches Robin Michael

C# port of the Ruby Faker gem (http://faker.rubyforge.org/) and is used to easily generate fake data: names, addresses, phone numbers, etc.

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.

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.

FFMpegCore by: Malte Rosenbjerg Vlad Jerca

A .NET Standard FFMpeg/FFProbe wrapper for easily integrating media analysis and conversion into your C# applications

Figgle by: Drew Noakes

ASCII banner generation for .NET

FirebaseAdmin by: Google Inc.

Firebase Admin SDK enables server-side .NET developers to integrate Firebase into their services and applications.

FluentAssertions by: Dennis Doomen Jonas Nyrup Xceed

A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Works with .NET Standard 2.0 and higher, .NET Framework 4.7 and higher and .NET 6 and higher. Supports the unit test frameworks MSTest2, NUnit3, NUnit4, XUnit2, XUnit3, MSpec and TUnit. IMPORTANT: This version is free for open-source projects and non-commercial use, but commercial use requires [a paid license](https://xceed.com/products/unit-testing/fluent-assertions/). Check out the [license page](LICENSE) for more information.

FluentMigrator by: Sean Chambers Josh Coffman Tom Marien Mark Junker

FluentMigrator is a database migration framework for .NET written in C#. The basic idea is that you can create migrations which are simply classes that derive from the Migration base class and have a Migration attribute with a unique version number attached to them. Upon executing FluentMigrator, you tell it which version to migrate to and it will run all necessary migrations in order to bring your database up to that version. In addition to forward migration support, FluentMigrator also supports different ways to execute the migrations along with selective migrations called profiles and executing arbitrary SQL.