Top 20 NuGet i18n Packages

Simple cross platform internationalization/translations for Xamarin and Windows apps
Localization scheme based on the URL path that works with Blazor Server.
SecondLanguage lets you use Gettext files in .NET without a lot of hassle. It can read and write both .mo and .po, and fully supports message contexts and plural forms. A C-style printf formatter is included so you don't have to use .NET-specific translations.
Fast Dynamic WPF Localization Framework
Fluent.Net is a C# implementation of Project Fluent, a localization framework designed to unleash the expressive power of the natural language. Project Fluent keeps simple things simple and makes complex things possible. The syntax used for describing translations is easy to read and understand. At...
Implementation of the ISO-639 standard for language codes, with database of languages generated from the official tables
A core package to create an internationalization-ready web application
Smart internationalization for .NET web apps; Globally recognized interface; localize like the big kids; Localizes everything; controller calls, views, validation attributes, and routes.
Aurelia I18n (aurelia-i18n) binding library for Bridge.NET projects.
Common Utilities. Translations
WebDucer library for handle translation in Xamarin.Forms in XAML and view models
Deprecated in favor of i18N-Complete. Will be removed soon.
Sample implementation of i18n package
Sample implementation of i18n package
Part of a package to making i18n easy for ASP.NET devs
i18n Platform built by Nuvi
Globalization package for ASP.NET MVC applications. The package contains the database resource provider model, which allows you to store resources in database in a really easy way. What is more, a dedicated online tool (http://globsite.net) can be used to localize resources.
Public interfaces for Targetprocess internationalization
A simplification of the configuration of location in .net core