Quickstart

export API_KEY={YOUR_API_KEY}

curl -X POST https://api.deepl.com/v2/translate \
  --header "Content-Type: application/json" \
  --header "Authorization: DeepL-Auth-Key $API_KEY" \
  --data '{
    "text": ["Hello world!"], 
    "target_lang": "DE"
}'

{
  "translations": [
    {
      "detected_source_language": "EN",
      "text": "Hallo, Welt!"
    }
  ]
}

pip install deepl

import deepl

auth_key = "{YOUR_API_KEY}" # replace with your key
deepl_client = deepl.DeepLClient(auth_key)

result = deepl_client.translate_text("Hello, world!", target_lang="DE")
print(result.text)

Hallo, Welt!

npm install deepl-node

import * as deepl from 'deepl-node';

const authKey = "{YOUR_API_KEY}"; // replace with your key
const deeplClient = new deepl.DeepLClient(authKey);

(async () => {
    const result = await deeplClient.translateText('Hello, world!', null, 'de');
    console.log(result.text);
})();

Hallo, Welt!

composer require deeplcom/deepl-php

require_once 'vendor/autoload.php';
use DeepL\Client;

$authKey = "{YOUR_API_KEY}"; // replace with your key
$deeplClient = new DeepL\DeepLClient($authKey);

$result = $deeplClient->translateText('Hello, world!', null, 'de');
echo $result->text;

Hallo, Welt!

dotnet add package DeepL.net

using DeepL; // this imports the DeepL namespace. Use the code below in your main program.

var authKey = "{YOUR_API_KEY}"; // replace with your key
var client = new DeepLClient(authKey);

var translatedText = await client.TranslateTextAsync(
    "Hello, world!",
    null,
    LanguageCode.German);
Console.WriteLine(translatedText);

Hallo, Welt!

// For instructions on installing the DeepL Java library,
// see https://github.com/DeepLcom/deepl-java?tab=readme-ov-file#installation

import com.deepl.api.*;

public class Main {
    public static void main(String[] args) throws DeepLException, InterruptedException {
        String authKey = "{YOUR_API_KEY}"; // replace with your key
        DeepLClient client = new DeepLClient(authKey);

        TextResult result = client.translateText("Hello, world!", null, "de");
        System.out.println(result.getText());
    }
}

Hallo, Welt!

gem install deepl-rb

require 'deepl'

DeepL.configure do |config|
    config.auth_key = '{YOUR_API_KEY}' # replace with your key
end

translation = DeepL.translate 'Hello, world!', nil, 'de'
puts translation.text

Hallo, Welt!