FirebaseAdmin by: Google Inc.

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

FirebirdSql.Data.FirebirdClient by: FirebirdSQL

Firebird ADO.NET data provider

Fizzler by: Atif Aziz Colin Ramsay

Fizzler is a W3C Selectors parser and generic selector framework for document hierarchies.

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.

FluentEmail.Core by: Luke Lowrey Ben Cull Github Contributors

Send emails very easily. Use razor templates, smtp, embedded files, all without hassle. This is a Base Package and includes just the domain model, very basic defaults, and is also included with every other Fluent Email package here.

FluentFTP by: Robin Rodricks FluentFTP Contributors

An FTP and FTPS client for .NET & .NET Standard, optimized for speed. Provides extensive FTP commands, File uploads/downloads, SSL/TLS connections, Directory listing parsing, File hashing/checksums, File permissions/CHMOD, FTP proxies, FXP transfers, UTF-8 support, Async/await support, Powershell support and more. Written entirely in C#, with no external dependencies.

FluentValidation by: Jeremy Skinner

A validation library for .NET that uses a fluent interface to construct strongly-typed validation rules.

FluentValidation.AspNetCore by: Jeremy Skinner

AspNetCore integration for FluentValidation

FluentValidation.ValidatorAttribute by: Jeremy Skinner

A validation library for .NET that uses a fluent interface to construct strongly-typed validation rules.

Fluid.Core by: Sebastien Ros

Fluid is a template engine based on the Liquid markup, with focus on performance and .NET programming patterns.

Flurl by: Todd Menier

A fluent, portable URL builder. To make HTTP calls off the fluent chain, check out Flurl.Http.

Flurl.Http by: Todd Menier

A fluent, portable, testable HTTP client library.

Fody by: Fody

Extensible tool for weaving .net assemblies.

FodyHelpers by: FodyHelpers

Helpers for Fody.

Foundatio by: bniemyjski ejsmith

Pluggable foundation blocks for building distributed apps.

Fractions by: Daniel Mueller

The fraction data type consists of two BigInteger values for numerator and denominator. It implements various operations (addition, subtraction, multiplication, division and remainder) with operator overloads.

FreeSpire.Doc by: Administrator

Free Spire.Doc for .NET is a professional and reliable word component for commercial and personal use. It enables developers to quickly and easily generate, read, write, save, print and convert documents on any .NET applications (ASP.NET, WinForms and Web Service, .NET Core) and it supports in C#, VB.NET. The featured function, conversion allows converting Word documents (Word 97-2003, Word 2007, Word 2010, Word 2013) to commonly used file format, format, such as XML, RTF, TXT, PDF, XPS, EPUB, HTML and Image etc. Free Spire.Doc for.NET is 100% FREE word component. Free Spire.Doc for .NET Features: *No Microsoft Word Automation *Speed and Easy-to-Use *Batch of Great Functions *High Performance *Totally Free Main functions High quality conversion Rich Word Document Features Process Pre-Existing Word Documents Other Technical Features

FreeSpire.PDF by: Administrator

As a standalone PDF component, Free Spire.PDF for .NET enables developers to create, write, edit, convert, print, handle and read PDF files on any .NET applications. You can implement rich capabilities to create PDF files from scratch or process existing PDF documents. Many rich features can be supported, such as security setting, PDF text/attachment/image extract, PDF merge/split, metadata update, section and paragraph optimizing, graph/image drawing and inserting, table creation and processing, and importing data etc. Main Functions Only Free Spire.PDF, No Adobe Acrobat installed. Free Spire.PDF for .NET is a totally independent .NET PDF library. It Does NOT require Adobe Acrobat or any other 3rd party software/library installed on system. High Quality PDF File Conversion • Convert Webpage HTML, HTML ASPX to PDF • Convert Image(Jpeg, Jpg, Png, Bmp, Tiff, Gif, EMF, Ico) to PDF • Convert Text to PDF • Convert RTF to PDF • Convert PDF to Image Easily Manipulate document and Form fields • Merge/split PDF documents • Overlay documents. • Import and stamp feature • Booklet feature • Create and fill form field Security features • Protect PDF documents by setting passwords and digital signature. • Decrypt PDF Document • Get and Verify Digital Signature • Modify PDF Passwords Document Settings features • Set custom metadata, document properties, page orientation, and page size. • Set PDF position, title display, resize, page mode and print scaling etc. Other Features • PDF/A-1b and PDF/x1a:2001 Compliance, both standards can be applied. • Extract images, text, pages and attachments from a PDF document • Pen and brush to draw shape elements, text, images into PDF documents. • Layers, transparent graphics, color space and barcode creation can render to PDF documents. • Add scalar/vector images and mask and place them in designated location. • Table and table style can be supported by Free Spire.PDF for .NET. • Insert interactive elements inc

FSharp.Core by: Microsoft and F# Software Foundation

FSharp.Core redistributables from Visual F# Tools version 10.4 For F# 4.6 Supported Platforms: .NET Framework 4.5+ (net45) netstandard1.6 (netstandard1.6) netstandard2.0 (netstandard2.0) Commit hash: 8527f4444ac8618a2aee143be608f63c55f51325

FuzzySharp by: Jacob Bayer

Fuzzy string matcher based on FuzzyWuzzy algorithm from SeatGeek