.JSON - i18next / i18nextV4 (Strings)

Content is machine translated from English by Phrase Language AI.

File Extensions	.json
API Extension	i18next / i18next_4
Import	Yes
Export	Yes
Plural forms support	Yes
Description support	No
Format options	nesting

I18next and I18nextV4 are JavaScript libraries that provide easy-to-use localization and internationalization solutions for various environments based on JavaScript. As one of the oldest l10n/i18n libraries, it supports standard i18n library features such as interpolation and plurals and works well with async requests. With proper configuration, it detects browser language settings to automatically load locale-specific data.

Like other JavaScript l10n/i18n libraries, i18next and i18nextV4 use JSON format to store translations. Strings pending translation are either placed at the value directly or nested inside of another object (e.g. interpolated values). For translation, ensure that all variables are kept intact.

If using i18nextV4, select the i18next 4 (.json) format when uploading.

AI chatbots can be very effective at generating a list of keys from a .JSON file.

Pluralization is handled differently between the two versions. To determine pluralized keys:

i18next uses:
- For languages with complex plural rules such as Russian, keyname_0, keyname_1, keyname_2 and keyname_5 would be used.
- For languages with simple plural rules such as English, keyname and keyname_plural would be used.
i18nextV4 uses _<plural_suffix> endings; pluralization with words one, two, three or for simple case keyname_one and keyname_other.

i18next on GitHub

Supported:

Pluralizations
- Keys ending in _0, _1, _other etc. will be mapped to the according plural forms.
Namespaces
Arrays

Not supported:

Interval Pluralizations are persisted as normal key values. There is no support in the UI.
Nesting / Variable replacement is not directly supported but placeholders can be activated. Cross-referencing keys from within values is not supported. There is no support in the UI.

Format Options

Identifier	nesting
Type	boolean
Upload	No
Download	Yes
Default	true
Description	When exporting translation files, keys are nested based on dots in the key name. Set to `false` to export translation files in flat JSON format.

Code Sample (i18next_4)

{
  "boolean_key": "--- true\n",
  "empty_string_translation": "",
  "key_with_description": "Check it out! This key has a description! (At least in some formats)",
  "key_with_line-break": "This translations contains\na line-break.",
  "nested": {
    "deeply": {
      "key": "Wow, this key is nested even deeper."
    },
    "key": "This key is nested inside a namespace."
  },
  "null_translation": "",
  "sample_collection": [
    "first item",
    "second item",
    "third item"
  ],
  "simple_key": "Just a simple key with a simple message.",
  "unverified_key": "This translation is not yet verified and waits for it. (In some formats we also export this status)",
  "pluralized_key_one": "Only one pluralization found.",
  "pluralized_key_other": "Wow, you have %s pluralizations!"
}

Code Sample(i18next)

{
  "boolean_key": "--- true\n",
  "empty_string_translation": "",
  "key_with_description": "Check it out! This key has a description! (At least in some formats)",
  "key_with_line-break": "This translations contains\na line-break.",
  "nested": {
    "deeply": {
      "key": "Wow, this key is nested even deeper."
    },
    "key": "This key is nested inside a namespace."
  },
  "null_translation": "",
  "sample_collection": [
    "first item",
    "second item",
    "third item"
  ],
  "simple_key": "Just a simple key with a simple message.",
  "unverified_key": "This translation is not yet verified and waits for it. (In some formats we also export this status)",
  "pluralized_key": "Only one pluralization found.",
  "pluralized_key_plural": "Wow, you have %s pluralizations!",
  "pluralized_keyWithCount": "{{count}} pluralization found.",
  "pluralized_keyWithCount_plural": "Wow, you have {{count}} pluralizations!"
}

i18next on GitHub