Language Server for JavaScript/TypeScript i18n libraries.

Provides IDE features (completion, hover, diagnostics, etc.) for translation keys in i18next, react-i18next, and next-intl projects.

Editor Extensions

• VS Code: nabekou29/vscode-js-i18n
• Neovim: nabekou29/js-i18n.nvim

Installation

npm

npm install -g js-i18n-language-server

Cargo

cargo install --git https://github.com/nabekou29/js-i18n-language-server

Binary

Download from GitHub Releases.

Configuration

Create .js-i18n.json in your project root:

{
  "translationFiles": {
    "filePattern": "**/locales/**/*.json"
  },
  "includePatterns": ["src/**/*.{ts,tsx}"],
  "excludePatterns": ["node_modules/**"]
}

Documentation

• Configuration Reference - All configuration options
• LSP Features - Standard methods and custom commands
• Supported Syntax - Recognized code patterns

License

MIT