Runtime Requirements

Browser#

Browser Support

We support IE11 & 2 most recent versions of Edge, Chrome, Firefox & Safari. If you need older browser support, take a look at polyfill-library that also uses formatjs but pre-bundle other polyfills that we use.

React Intl relies on these Intl APIs:

Intl.NumberFormat: Available on IE11+
Intl.DateTimeFormat: Available on IE11+
Intl.PluralRules: This can be polyfilled using this package.
(Optional) Intl.RelativeTimeFormat: Required if you use formatRelativeTime or FormattedRelativeTime. This can be polyfilled using this package.
(Optional) Intl.DisplayNames: Required if you use formatDisplayName or FormattedDisplayName. This can be polyfilled using this package.

We officially support IE11 along with 2 most recent versions of Edge, Chrome & Firefox.

Node.js#

React Intl requires Node.js 16 or later, which includes full internationalization support by default. If your Node.js version is missing any of the Intl APIs above, you'd have to polyfill them accordingly.

React Native#

If you're using react-intl in React Native, make sure your runtime has built-in Intl support (similar to JSC International variant). See these issues for more details:

React Native on iOS#

If you cannot use the Intl variant of JSC (e.g on iOS), follow the instructions in polyfills to polyfill the following APIs (in this order):