A lightweight, readable, and automated internationalization (i18n) framework for JavaScript and React applications.
Lingui is an internationalization (i18n) framework for JavaScript and React applications that provides a clean, readable API for managing translations and localized content. It solves the complexity of building globally accessible software by automating message extraction, supporting rich-text formatting, and maintaining a minimal bundle size. The framework leverages ICU MessageFormat for robust message handling while offering seamless integration with modern development workflows.
JavaScript and React developers building applications that need to support multiple languages and regions, especially those prioritizing performance, code readability, and smooth integration with existing tools.
Developers choose Lingui for its combination of simplicity and power—offering a lightweight, optimized solution with full rich-text support, comprehensive tooling, and compatibility with react-intl for easy migration. Its unopinionated design and active community make it a versatile choice for internationalization.
🌍 📖 A readable, automated, and optimized (2 kb) internationalization for JavaScript
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Core library is under 2 kB gzipped, with React components adding only 1.3 kB, ensuring low impact on application performance.
Allows embedding React components directly in translated messages, making complex UI localization as easy as writing JSX.
Includes a Vite plugin for on-the-fly compilation and an ESLint plugin for error checking, streamlining the development workflow.
Supports React Server Components (RSC), enabling use in cutting-edge React architectures without compatibility issues.
Requires setup with CLI or build plugins, which can be cumbersome for projects without existing JavaScript build processes.
While core works universally, advanced features like the Trans component are React-specific, limiting utility for Vue or Angular projects.
With v6 in pre-release, users may face migration challenges or instability as the framework evolves.
lingui is an open-source alternative to the following products: