Nuxt I18n Micro

Nuxt I18n Micro is a fast, simple, and lightweight internationalization (i18n) module for Nuxt. Despite its compact size, it's designed with large projects in mind, offering significant performance improvements over traditional i18n solutions like nuxt-i18n. The module was built from the ground up to be highly efficient, focusing on minimizing build times, reducing server load, and shrinking bundle sizes.

Why Nuxt I18n Micro?

The Nuxt I18n Micro module was created to address critical performance issues found in the original nuxt-i18n module, particularly in high-traffic environments and projects with large translation files. Key issues with nuxt-i18n include:

High Memory Consumption: Consumes significant memory during both build and runtime, leading to performance bottlenecks.
Slow Performance: Especially with large translation files, it causes noticeable slowdowns in build times and server response.
Large Bundle Size: Generates a large bundle, negatively impacting application performance.
Memory Leaks and Bugs: Known for memory leaks and unpredictable behavior under heavy load.

Performance Comparison

To showcase the efficiency of Nuxt I18n Micro, we conducted tests under identical conditions. Both modules were tested with a 10MB translation file on the same hardware.

Build Time and Resource Consumption

Nuxt I18n:

Total size: 54.7 MB (3.31 MB gzip)
Max CPU Usage: 391.4%
Max Memory Usage: 8305 MB
Elapsed Time: 0h 1m 31s

Nuxt I18n Micro:

Total size: 1.93 MB (473 kB gzip) — 96% smaller
Max CPU Usage: 220.1% — 44% lower
Max Memory Usage: 655 MB — 92% less memory
Elapsed Time: 0h 0m 5s — 94% faster

Server Performance (10k Requests)

Nuxt I18n:

Requests per second: 49.05 #/sec (mean)
Time per request: 611.599 ms (mean)
Max Memory Usage: 703.73 MB

Nuxt I18n Micro:

Requests per second: 61.18 #/sec (mean) — 25% more requests per second
Time per request: 490.379 ms (mean) — 20% faster
Max Memory Usage: 323.00 MB — 54% less memory usage

These results clearly demonstrate that Nuxt I18n Micro significantly outperforms the original module in every critical area.

Key Features

🌐 Compact Yet Powerful: Despite its small size, Nuxt I18n Micro is designed for large-scale projects, focusing on performance and efficiency.
⚡ Optimized Build and Runtime: Reduces build times, memory usage, and server load, making it ideal for high-traffic applications.
🛠 Minimalist Design: The module is structured around just 5 components (1 module and 4 plugins), making it easy to understand, extend, and maintain.
📏 Efficient Routing: Generates only 2 routes regardless of the number of locales, thanks to dynamic regex-based routing, unlike other i18n modules that generate separate routes for each locale.
🗂 Streamlined Translation Loading: Only JSON files are supported, with translations split between a global file for common texts (e.g., menus) and page-specific files, which are auto-generated in the dev mode if not present.

Quick Setup

Install the module in your Nuxt application with:

npm install nuxt-i18n-micro

Then, add it to your nuxt.config.ts:

export default defineNuxtConfig({
  modules: [
    'nuxt-i18n-micro',
  ],
  i18n: {
    locales: [
      { code: 'en', iso: 'en-US', dir: 'ltr' },
      { code: 'fr', iso: 'fr-FR', dir: 'ltr' },
      { code: 'ar', iso: 'ar-SA', dir: 'rtl' },
    ],
    defaultLocale: 'en',
    translationDir: 'locales',
    meta: true,
  },
})

That's it! You're now ready to use Nuxt I18n Micro in your Nuxt app.

Docs

Plugin Methods

Performanc

Performance Test Results