What is i18n?

Internationalization (i18n) is the process of adapting software products to different languages and regions. next-intl is one of the most popular i18n libraries for Next.js.

With i18n, you can translate your application into multiple languages and localize date and time formats.

Setup with next-intl

next-intl is fully compatible with the Next.js App Router. You can manage your translation files with tools like createNavigation and NextIntlClientProvider.

Translation files are typically stored in JSON format, with a separate file for each language.

Translation Management

With next-intl, you can organize your translations using namespaces. This allows you to group translation files logically in large projects.

JSON-based translation files Organization with namespaces Dynamic values and interpolation Translations with HTML

Routing and URL Management

next-intl enables language-based routing. You can create locale-prefixed URLs like /tr/urunler and /en/products. It also offers language detection and automatic redirection.

Performance and SEO

next-intl optimizes runtime performance using static translation files. For SEO, it automatically manages hreflang tags and ensures search engines index the correct language version.