bing-translate-api

bing-translate-api

A simple and free API for Bing Translator and Microsoft Translator for Node.js.

Install

npm install bing-translate-api

Usage

Microsoft Translator ^🆕

Added since v4.0.0. More stable and powerful. Both free service and paid service are supported. Feel free to give it a try!

Read the README for more details.

Bing Translator

From auto-detected language to English:

const { translate } = require('bing-translate-api');

translate('你好', null, 'en').then(res => {
  console.log(res.translation);
}).catch(err => {
  console.error(err);
});

Translation result

{
  // original text
  "text": "你好",
  // user-specified language code
  "userLang": "auto-detect",
  // translated text
  "translation": "Hello",
  // `correctedText` is returned only when `correct` is set as `true`
  // supported since v1.1.0
  "correctedText": "",
  // detected language
  "language": {
    // language code of translated text
    "to": "en",
    // detected language code of original text
    "from": "zh-Hans",
    // score of language detection
    // supported since v1.1.0
    // (NOTICE: This field may not be provided at present)
    "score": 1
  },
  // feminine translation text (Only be returned when the translation result is gender-debiased)
  // supported since v4.1.0
  "feminineTranslation": undefined,
  // masculine translation text (Only be returned when the translation result is gender-debiased)
  // supported since v4.1.0
  "masculineTranslation": undefined
}

API

translate(text, [from], [to], [correct], [raw], [userAgent], [proxyAgents])

text

Type: string

The text to be translated, can't be blank. The maximum text length is 1000.

NOTE:

• The maximum text length is up to 5000 characters only in China.
• In EPT mode (since v3.0.0), the maximum text length is currently 3000.

from

Type: string Default: auto-detect

The language code of source text.

MUST be auto-detect or one of the codes/names (not case sensitive) contained in lang.json

NOTE: The EPT mode (since v3.0.0) only supports the languages contained in src/config.json#eptLangs. Any other language will fall back to the legacy mode, in which a 429 (Too Many Requests) error often occurs.

to

Type: string Default: en

The language in which the text should be translated.

MUST be one of the codes/names (not case sensitive) contained in lang.json.

NOTE: The EPT mode (since v3.0.0) only supports the languages contained in src/config.json#eptLangs. Any other language will fall back to the legacy mode, in which a 429 (Too Many Requests) error often occurs.

correct

Type: boolean Default: false Since: v1.1.0

Whether to correct the input text.

Note that:

• There is currently a limit of 50 characters for correction service.
• Only the languages in the list are supported to be corrected.

raw

Type: boolean Default: false

Whether the translation result contains raw response from Bing API.

userAgent

Type: string

The header value of user-agent used in API requests.

Refer to src/config.json#userAgent for the default user agent.

proxyAgents

Type: Got['Agents'] Default: undefined Since: v2.4.0

Set agents of got for proxy.

License

MIT © 2021-2025 plainheart.

Thanks

Great thanks to Bing Translator for providing such an excellent translation service.