⚡ Lingo.dev - open-source, AI-powered i18n toolkit for instant localization with LLMs.

Lingo.dev Compiler • Lingo.dev MCP • Lingo.dev CLI • Lingo.dev CI/CD • Lingo.dev SDK

Lingo.dev Compiler is a free, open-source compiler middleware, designed to make any React app multilingual at build time without requiring any changes to the existing React components.

Install once:

npm install lingo.dev

Enable in your build config:

importlingoCompilerfrom"lingo.dev/compiler";constexistingNextConfig={};exportdefaultlingoCompiler.next({sourceLocale: "en",targetLocales: ["es","fr"],})(existingNextConfig);

Run next build and watch Spanish and French bundles pop out ✨

Read the docs → for the full guide, and Join our Discord to get help with your setup.

Below are the quick hits for each 👇

Translate code & content straight from your terminal.

npx lingo.dev@latest run

It fingerprints every string, caches results, and only re-translates what changed.

Follow the docs → to learn how to set it up.

Ship perfect translations automatically.

# .github/workflows/i18n.ymlname: Lingo.dev i18non: [push]jobs: i18n: runs-on: ubuntu-lateststeps: - uses: actions/checkout@v4 - uses: lingodotdev/lingo.dev@mainwith: api-key: ${{secrets.LINGODOTDEV_API_KEY }}

Keeps your repo green and your product multilingual without the manual steps.

Read the docs →

Instant per-request translation for dynamic content.

import{LingoDotDevEngine}from"lingo.dev/sdk";constlingoDotDev=newLingoDotDevEngine({apiKey: "your-api-key-here",});constcontent={greeting: "Hello",farewell: "Goodbye",message: "Welcome to our platform",};consttranslated=awaitlingoDotDev.localizeObject(content,{sourceLocale: "en",targetLocale: "es",});// Returns:{greeting: "Hola", farewell: "Adiós", message: "Bienvenido a nuestra plataforma" }

Perfect for chat, user comments, and other real-time flows.

Read the docs →

We're community-driven and love contributions!

• Got an idea? Open an issue
• Want to fix something? Send a PR
• Need help? Join our Discord

If you like what we're doing, give us a ⭐ and help us reach 5,000 stars! 🌟

English • 中文 • 日本語 • 한국어 • Español • Français • Русский • Українська • Deutsch • Italiano • العربية • עברית • हिन्दी • বাংলা • فارسی • Bhojpuri

Don't see your language? Add it to i18n.json and open a PR!