How do I set up eo-locale in a React app with TypeScript?

Install the @eo-locale/react package, import the Provider and components, and define your locales in nested JSON format. TypeScript types are automatically included, making integration straightforward with minimal configuration.

eo-locale vs react-i18next: which is better for performance?

eo-locale is better if bundle size is critical, as it's significantly lighter. react-i18next offers more features and a larger ecosystem but adds more weight, so choose based on your project's priorities.

Does eo-locale work with server-side rendering in frameworks like Next.js?

Yes, eo-locale runs in Node.js and can be used with SSR in Next.js. However, you'll need to handle locale loading and state management manually, as it doesn't provide built-in SSR-specific optimizations.

Can I use eo-locale with vanilla JavaScript or other frameworks?

Absolutely, eo-locale has a core package (@eo-locale/core) that works with vanilla JavaScript, allowing you to integrate it into any JavaScript project, including non-React frameworks like Vue or Angular with custom wrappers.

How does eo-locale handle complex pluralization and gender rules?

It uses the ICU message format standard, which supports advanced plural rules, genders, and selectors, so you can define messages that adapt based on count or other variables directly in your locale files.

Is eo-locale suitable for large-scale applications with many translations?

Yes, due to its lightweight nature and support for nested JSON locales, it can scale well. However, you may need to implement your own tooling for translation management and dynamic loading in very large teams.

eo-locale — Lightweight React i18n Library

What is eo-locale?

eo-locale is a React internationalization library that enables developers to translate and localize their applications efficiently. It leverages the ICU message format standard and is designed to be lightweight, ensuring minimal impact on bundle size and performance. The library supports over 150 languages and can be used in both React components and vanilla JavaScript.

Target Audience

React developers who need a performant and simple internationalization solution, particularly those concerned with bundle size and client-side performance in web applications.

Value Proposition

Developers choose eo-locale for its extremely small bundle size, strict adherence to ICU standards, and flexibility in usage. It offers a minimal API with full TypeScript support, making it a lightweight alternative to heavier libraries like react-intl or react-i18next.

Overview

🌏Internationalize React apps 👔Elegant lightweight library based on Internationalization API

Use Cases

Best For

Building React applications that require internationalization with minimal bundle impact
Projects needing strict ICU message format compliance for localization
Applications targeting a wide range of languages (150+ supported)
Developers who want to use internationalization in both React and vanilla JavaScript contexts
Teams prioritizing TypeScript or Flow type safety in their i18n setup
Optimizing web app performance through tree-shaking and lightweight dependencies

Not Ideal For

Applications requiring out-of-the-box support for date, number, and currency formatting without integrating additional libraries
Large teams needing extensive i18n tooling, GUI editors, or pre-built integrations with translation management systems
Projects where bundle size is not a constraint and a more feature-rich library like react-intl is preferred for its ecosystem

Pros & Cons

Pros

Minimal Bundle Size

The library is extremely lightweight, with bundle size optimized for tree shaking, as evidenced by bundlephobia comparisons showing it's significantly smaller than alternatives like react-intl.

Strict ICU Compliance

Implements ICU message format standards rigorously, ensuring robust handling of plurals, genders, and complex message structures for reliable localization.

Flexible Usage Options

Can be used in React components via hooks or in vanilla JavaScript, and supports embedding HTML and React elements within messages for dynamic content integration.

Type Safety Included

Built with TypeScript and provides Flow types out of the box, reducing runtime errors and improving developer experience with full type support.

Cons

Limited Built-in Formatting

Focuses primarily on text translation and ICU message formatting, lacking out-of-the-box support for localizing dates, numbers, and currencies, which may require additional libraries or manual work.

Smaller Ecosystem

Compared to established libraries like react-intl, eo-locale has a smaller community, fewer third-party plugins, and less extensive documentation or pre-built tooling for complex workflows.

Manual Advanced Setup

The minimalist API means developers may need to implement custom solutions for dynamic locale loading, SSR optimizations, or integration with translation services, as it doesn't include these features natively.

Open Source Alternative To

eo-locale is an open-source alternative to the following products:

@

@lingui/react

@lingui/react is a React integration for Lingui, a JavaScript internationalization (i18n) library. It provides React components and hooks for managing translations and localization in React applications.

r

react-intl

react-intl is a library for internationalizing React applications, offering components and APIs to format dates, numbers, and strings for different locales.

r

react-intl-universal

react-intl-universal is an internationalization library for React that supports multiple languages without requiring component hierarchy changes.

r

react-i18next

react-i18next is an internationalization framework for React applications built on i18next, providing components and hooks for translating UI text.

eo-locale

What is eo-locale?

Overview

Use Cases

Best For

Not Ideal For

Pros & Cons

Pros

Cons

Open Source Alternative To

Frequently Asked Questions

Related Projects

Found a gem we're missing?

eo-locale

What is eo-locale?

Overview

Use Cases

Best For

Not Ideal For

Pros & Cons

Pros

Cons

Open Source Alternative To

Frequently Asked Questions

Related Projects

Found a gem we're missing?