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.

DnsClient by: MichaCo

DnsClient.NET is a simple yet very powerful and high performance open source library for the .NET Framework to do DNS lookups

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

An analyzer for packages with public APIs.

DotNetZip by: Dino Chiesa

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

Enums.NET by: Tyler Brinkley

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

EPPlus by: Jan Källman

A library to manage Excel spreadsheets, using OOXML.

ExcelNumberFormat by: ExcelNumberFormat developers

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

Excubo.Blazor.LazyStyleSheet by: Stefan Lörwald

Excubo.Blazor.LazyStyleSheet makes it easy to dynamically load style sheets in razor components. This improves page load times and reduces the amount of data transferred over the network.

Excubo.Blazor.TreeViews by: Stefan Lörwald

Excubo.Blazor.TreeViews is a Blazor component library for tree views.

ExtendedNumerics.BigDecimal by: https://github.com/AdamWhiteHat

Arbitrary precision decimal class

FirebirdSql.Data.FirebirdClient by: FirebirdSQL

Firebird ADO.NET Data provider

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.

FluentResults by: Michael Altmann

A lightweight Result object implementation for .NET

FluentValidation by: Jeremy Skinner

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

Fody by: The Fody Team

Extensible tool for weaving .net assemblies.

gherkin by: aslakhellesoy

A fast lexer and parser for the Gherkin language based on Ragel

Google.Api.Gax by: Google Inc.

Support classes for Google API client libraries

Google.Api.Gax.Rest by: Google Inc.

Common Protocol Buffer messages for Google APIs

Google.Apis by: Google LLC

The Google APIs Client Library is a runtime client for working with Google services. The library supports service requests, media upload and download, etc. Supported Platforms: - .NET Framework 4.5+ - NetStandard1.3, providing .NET Core support

Google.Apis.Auth by: Google LLC

The Google APIs Client Library is a runtime client for working with Google services. This package includes auth components like user-credential, authorization code flow, etc. for making authenticated calls using the OAuth2 spec. Supported Platforms: - .NET Framework 4.5 - .NET Framework 4.6.1 - .Net Standard 1.3 - .Net Standard 2.0