Top 23 JavaScript I18n Projects

I18n

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1. react-boilerplate

   1 24 29,489 0.0 JavaScript

   🔥 A highly scalable, offline-first foundation with the best developer experience and a focus on performance and best practices.

   

2. Puter.js

   developer.puter.com featured

   Puter.js - The Backend for AI-Generated Apps. One-shot full-stack apps with your existing AI coding tool. Puter.js gives you Auth, Storage, DB, AI & more, with up to 90% fewer AI tokens than other backend platforms.

   

3. react-i18next

   2 78 10,036 8.8 JavaScript

   Internationalization for react done right. Using the i18next i18n ecosystem.

   

   Project mention: Migrating an Expo app from Japanese to multi-language support in stages | dev.to | 2026-08-02

   React i18next

4. i18next

   3 77 8,613 9.3 JavaScript

   i18next: learn once - translate everywhere

   

   Project mention: Migrating an Expo app from Japanese to multi-language support in stages | dev.to | 2026-08-02

   i18next

5. globalize

   4 3 4,843 4.2 JavaScript

   A JavaScript library for internationalization and localization that leverages the official Unicode CLDR JSON data

   

6. next-translate

   5 14 2,738 7.5 JavaScript

   Next.js plugin + i18n API for Next.js 🌍 - Load page translations and use them in an easy way!

   

   Project mention: One PR to a parser unlocked prerendering in Brisa | dev.to | 2026-04-23

   Before Brisa, I was already maintaining next-translate, an i18n library for Next.js. For the plugin that auto-injects locale loaders into pages, I used the TypeScript compiler API. It worked. It was also painfully slow; ts.createProgram() for every page file at build time, full type-checker instantiation, lib resolution. We had to add noResolve: true and noLib: true just to make it bearable. The parser was doing ten times more work than we needed because all we wanted was the AST, not the types.

7. Traduora

   6 1 2,122 5.9 JavaScript

   Ever® Traduora™ - Open Translation Management Platform - https://traduora.co

   

8. react-intl-universal

   7 1 1,355 8.3 JavaScript

   Internationalize React apps. Not only for Component but also for Vanilla JS.

   

9. AppSignal

   www.appsignal.com featured

   AppSignal knows why the f*#k it crashed. Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.

   

10. fluent.js

    8 18 1,006 4.6 JavaScript

    JavaScript implementation of Project Fluent

    

11. diciotech

    9 7 706 6.4 JavaScript

    O Diciotech é um dicionário tech online colaborativo e open source. Nossa missão é ajudar pessoas de todos os níveis a entenderem termos e conceitos relacionados à tecnologia de forma clara e simples.

    

12. i18next-scanner

    10 2 670 4.4 JavaScript

    Scan your code, extract translation keys/values, and merge them into i18n resource files.

    

    Project mention: Automating the Localization Pipeline: Extraction to TMS to CI | dev.to | 2026-06-04

    Sources: Message Extraction | Format.JS - formatjs extract usage, --extract-source-location, and message descriptor fields (description, defaultMessage). Screenshots | Crowdin Docs - Crowdin screenshot management and in-context tagging for translators. Screenshots | Lokalise Help Center - Lokalise screenshot features, automatic key detection, and screenshot editor. Crowdin CLI Documentation - crowdin upload/download commands, configuration file usage, branch options and CI integration hints. Lokalise GitHub Actions & CLI docs - Lokalise push/pull GitHub Actions, PR creation behavior, and configuration for branch tagging. i18next-scanner (GitHub) - Scanner for i18next-based projects to extract keys and generate resource files. XLIFF v2.0 (OASIS) - XLIFF specification and rationale for using XLIFF as an interchange format. Triggering a workflow | GitHub Actions - Events, paths filters and workflow_dispatch usage in GitHub Actions. Translation memory | Lokalise - Lokalise Translation Memory features, TMX import/export and inline suggestions. Pre-Translation | Crowdin Docs - Crowdin pre-translation options (TM, MT, AI) and configuration. Content Delivery (OTA) | Crowdin Docs - Over-the-air content delivery, distributions and CDN release workflow. QA Check Settings | Crowdin Docs - Built-in QA checks, configuration and error/warning escalation. QA checks | Lokalise Help Center - Lokalise QA checks, supported checks and escalation levels.

13. hugo-theme-relearn

    11 0 605 9.0 JavaScript

    A theme for Hugo designed for documentation

    

14. gatsby-plugin-intl

    12 1 320 0.0 JavaScript

    Gatsby plugin that turns your website into an internationalization-framework out of the box.

    

15. svelte-intl-precompile

    13 4 280 0.0 JavaScript

    I18n library for Svelte.js that analyzes your keys at build time for max performance and minimal footprint

    

16. v-selectpage

    14 1 248 0.0 JavaScript

    SelectPage for Vue, a select items components provides the list of items with pagination

    

17. nextjs-multi-domain-locale

    15 1 232 1.8 JavaScript

    Hosting multiple domains on the same Next.js site (while maintaining multiple languages and SSG)

    

18. eslint-plugin-i18n-json

    16 2 195 1.8 JavaScript

    Fully extendable eslint plugin for JSON i18n translation files.

    

19. react-translated

    17 1 177 0.0 JavaScript

    A dead simple way to add complex translations (i18n) in a React (DOM/Native) project 🌎🌍🌏

    

20. i18next-http-middleware

    18 1 170 8.2 JavaScript

    i18next-http-middleware is a middleware to be used with Node.js web frameworks like express or Fastify and also for Deno.

    

21. react-i18nify

    19 1 154 8.2 JavaScript

    Simple i18n translation and localization components and helpers for React.

    

22. react-globalize

    20 0 107 0.0 JavaScript

    Bringing the i18n functionality of Globalize, backed by CLDR, to React

    

23. react-translate-maker

    21 0 36 0.0 JavaScript

    Universal internationalization (i18n) open source library for React

    

24. nextjs-i18n-example

    22 4 12 3.6 JavaScript

    Next.js internationalization with react-intl

    

25. typesafe-i18n-demo-sveltekit-jsdoc

    23 2 12 3.4 JavaScript

    A small project demonstrating a `typesafe-i18n` integration with SvelteKit

    

26. SaaSHub

    www.saashub.com featured

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    

JavaScript I18n related posts

• Migrating an Expo app from Japanese to multi-language support in stages

  2 projects | dev.to | 2 Aug 2026

• ime bugs, display-width bugs, and bidi bugs are the same bug

  8 projects | dev.to | 10 Jul 2026

• War Story: We Ditched Angular 18 for Svelte 5 and Reduced Our 2026 Enterprise App Bundle Size by 58%

  2 projects | dev.to | 28 Apr 2026

• Shocking Things You Can Do in JavaScript

  2 projects | dev.to | 23 May 2025

• Building a Scalable i18n System in React

  4 projects | dev.to | 2 May 2025

• Llama 4: Breaking Down Meta's Latest Powerhouse Model

  2 projects | dev.to | 5 Apr 2025

• Show HN: i18n-ai-translate

  1 project | news.ycombinator.com | 19 Jan 2025
• A note from our sponsor - AppSignal
  www.appsignal.com | 9 Aug 2026

  Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise. Learn more →

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