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Next.js Internationalization: Building a Multilingual Blog App

In this project, we’ll learn some important internationalization and content localization concepts by building a real-world multilingual blog application using Next.js and Tailwind CSS.

Next.js Internationalization: Building a Multilingual Blog App

You will learn to:

Build a multilingual blog application with Next.js and Tailwind CSS.

Understand the core concepts of internationalization (i18next) and content localization.

Handle locale date and time formats.

Implement localization in server and client components.


Web Frameworks

Web Development

Configuring and Localizing Applications


Basic understanding of Next.js

Basic understanding of styling web applications using Tailwind CSS

Basic understanding of TypeScript




TypeScript logo


Project Description

With the fast-growing number of businesses operating internationally, there’s an ever-increasing demand for information to be presented to users in their preferred language. In this project, we’ll explore the steps involved in internationalization (i18next) and content localization using Next.js. 

We’ll learn how to effectively handle right-to-left (RTL) languages utilizing two important libraries Intl.LocaleMatcher and Negotiator to get a user’s preferred locale. We’ll also create a language switcher to toggle the different locales while persisting the locale preference via cookies, giving us a well-rounded understanding of internationalization in Next.js.

The final layout of the application should look like the following:

Home page
1 of 2

Project Tasks


Get Started

Task 0: Introduction

Task 1: Set Up an Internationalization Locale


Internationalization and Locale Setup

Task 2: Get a Preferred Locale

Task 3: Handle Routing and Redirection in Middleware

Task 4: Interpolate the Dynamic Values from the JSON Language Files

Task 5: Configure Language Dictionaries


Set Up Project Components

Task 6: Set Up the Navbar Component

Task 7: Set Up the Footer Component

Task 8: Set Up the Language Switcher Component

Task 9: Create the Post Card Component



Task 10: Localize the Server Components

Task 11: Localize the Client Components

Task 12: Handle Date/Time Formats

Task 13: Implement Adjustments for RTL (Right-to-Left) Languages


Optimization and Best Practices

Task 14: Implement SEO Optimization

Task 15: Handling Missing Routes