# Ember-Intl > Ember-Intl JSON localization URL: https://store.crowdin.com/ember-intl-json Category: File Formats Type: System Author: Crowdin Ember-intl is an internationalization addon that enables the translation of simple to complex messages using built-in pluralization rules, number and datetime formatting, with support for over 150 languages. It is built on native ECMAScript Internationalization APIs that are now supported by all modern browsers. Because Ember-Intl uses JSON as its file format and ICU markup, Crowdin natively supports Ember-Intl. ## File Format Details | Attribute | Value | | --------- | ----- | | File Extension | .json | | [API Type](https://developer.crowdin.com/api/v2/#operation/api.projects.files.post) | json | | Source can be edited in Crowdin | Yes | | Generating translated files via [Bundles](https://support.crowdin.com/bundles/) | [Search Crowdin Store](https://store.crowdin.com/tags/string-exporter) | | Supports pluralization | Yes | | WYSIWYG Preview in the editor | No | | Supported types of contextual information | Text comments, Screenshots, In-Context | | Custom attributes | No | | Existing translations import possibility | Key-value mapping | ## Sample File ```json { "title": "Welcome to Crowdin", } ```