What It Does

Vue I18n is a tool that makes it easy to translate your Vue 3 web app into multiple languages. If you're building a website or app in Vue 3 and want users around the world to see it in their own language, this library handles all the heavy lifting—managing translations, switching between languages, and formatting dates and numbers correctly for different regions.

How It Works

The library acts as a bridge between your Vue app and your translation files. You set up text strings in different languages (English, Spanish, French, etc.), and then anywhere in your app you can use a simple function to display the right language based on what the user has selected. It's designed to work smoothly with Vue 3's newer coding patterns, though it also supports the older style if you're upgrading an existing project.

Who Would Use It

Any Vue 3 developer building for an international audience. If you're making an app that needs to support English, German, Japanese, and Portuguese simultaneously, this is what you'd reach for. The README shows there's a whole ecosystem around it—plugins for build tools like Vite and Webpack, linting tools to catch translation mistakes, and CLI utilities to manage your language files at scale.

Getting Started

You can start using it immediately with a simple npm install vue-i18n@9 or even test it out in a browser sandbox without installing anything. The project includes example code in two styles, so whether you're using the newer Vue patterns or sticking with the older approach, you'll find something to build from. Complete documentation is available, along with a migration guide if you're upgrading from an older version.