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Formatjs

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Updated: 7 Jul 2025
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The monorepo home to all of the FormatJS related libraries, most notably react-intl.

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Overview

FormatJS is an impressive suite of libraries designed to streamline internationalization and localization in JavaScript applications. Whether you’re building a global app or simply need to format dates and numbers according to local customs, FormatJS offers a robust set of tools that can significantly enhance the development experience. With features supporting various locales and formatting options, developers can ensure that their applications feel native to users across the globe.

In addition to its powerful libraries, FormatJS also prioritizes community engagement and collaboration. With a dedicated Slack channel, developers can easily seek help, share insights, and connect with others who are equally passionate about enhancing their applications’ internationalization capabilities.

Features

  • Comprehensive Internationalization: Supports multiple locales for seamless date, number, and message formatting, ensuring consistency across different regions.
  • Modular Library Selection: Pick and choose from libraries like @formatjs/intl-numberformat and @formatjs/intl-datetimeformat to only include what you need in your project.
  • Easy Integration: Offers straightforward installation and integration processes, making it simple to incorporate into existing projects.
  • Rich Community Support: Join discussions and seek guidance through the active FormatJS Slack community to enhance your learning and project development.
  • Continuous Updates: Frequent version updates and changelogs maintain the libraries’ relevance and reliability, adapting to the latest standards in internationalization.
  • Customizable Plugin Options: Utilize tools like babel-plugin-formatjs and eslint-plugin-formatjs to tailor your coding experience and improve code quality.
  • Well-Documented API: Comprehensive documentation provides a clear guide for developers, making it easier to get started and making the most of the formatters available.