Extracts string messages for translation from modules that use React Intl.


112.5.14 years ago4 years agoMinified + gzip package size for @langpavel/babel-plugin-react-intl in KB



This is fork of babel-plugin-react-intl

Extracts string messages for translation from modules.

Note: This Babel plugin works with React Intl v2.x, and 1.x of this plugin works with Babel 5, 2.x works with Babel 6.


$ npm install babel-plugin-react-intl


This Babel plugin only visits ES6 modules which import React Intl.

The default message descriptors for the app's default language will be extracted from: defineMessages(), <FormattedMessage>, and <FormattedHTMLMessage>; all of which are named exports of the React Intl package.

If a message descriptor has a description, it'll be removed from the source after it's extracted to save bytes since it isn't used at runtime.

Via .babelrc (Recommended)


  "plugins": [
    ["react-intl", {
        "messagesDir": "./build/messages/"


  • messagesDir: The target location where the plugin will output a .json file corresponding to each component from which React Intl messages were extracted. If not provided, the extracted message descriptors will only be accessible via Babel's API.

  • enforceDescriptions: Whether message declarations must contain a description to provide context to translators. Defaults to: false.

  • extractSourceLocation: Whether the metadata about the location of the message in the source file should be extracted. If true, then file, start, and end fields will exist for each extracted message descriptors. Defaults to false.

  • moduleSourceName: The ES6 module source name of the React Intl package. Defaults to: "react-intl", but can be changed to another name/path to React Intl.

  • keepDescriptions: When true, then description will not be removed from transformed code. Defaults to: false.

  • removeDefaultMessage: When true, then defaultMessage will be removed from transformed code. Defaults to: false.

Via Node API

The extract message descriptors are available via the metadata property on the object returned from Babel's transform() API:

require('babel-core').transform('code', {
  plugins: ['react-intl']
}) // => { code, map, ast, metadata['react-intl'].messages };

If you find any bugs or have a feature request, please open an issue on github!

The npm package download data comes from npm's download counts api and package details come from npms.io.