Set Chrome's language using Selenium ChromeDriver

Question

I download ChromeDriver and by defaults the browser language is in English, I need to change it to Spanish, and I have been unable.

public WebDriver getDriver(String locale){   
    System.setProperty("webdriver.chrome.driver", "driver/chromedriver.exe");
    return new ChromeDriver();
}

public void initializeSelenium() throws Exception{
    driver = getDriver("en-us")
}

Tails

Answer 1

You can do it by adding Chrome's command line switches "--lang".

Basically, all you need is starting ChromeDriver with an ChromeOption argument --lang=es, see API for details.

The following is a working example of C# code for how to start Chrome in Spanish using Selenium.

ChromeOptions options = new ChromeOptions();
options.addArguments("--lang=es");
ChromeDriver driver = new ChromeDriver(options);

Java code should be pretty much the same (untested). Remember, locale here is in the form language[-country] where language is the 2 letter code from ISO-639.

public WebDriver getDriver(String locale){   
    System.setProperty("webdriver.chrome.driver", "driver/chromedriver.exe");
    ChromeOptions options = new ChromeOptions();
    options.addArguments("--lang=" + locale);
    return new ChromeDriver(options);
}

public void initializeSelenium() throws Exception{
    driver = getDriver("es"); // two letters to represent the locale, or two letters + country
}

Pulcheria

Has anybody the solution with Appium to test chrome on a mobile device ? – Slush

Answer 2

For me, --lang didn't work. It seems to set the language of the first opened tab, all others chrome processes are started with --lang=en-US.

What did work is the following:

DesiredCapabilities jsCapabilities = DesiredCapabilities.chrome();
ChromeOptions options = new ChromeOptions();
Map<String, Object> prefs = new HashMap<>();
prefs.put("intl.accept_languages", language);
options.setExperimentalOption("prefs", prefs);
jsCapabilities.setCapability(ChromeOptions.CAPABILITY, options);

Ferrotype

this worked for me using reliply.org/tools/requestheaders.php to verify. – Hodgson

For me it also works without the DesiredCapabilities (first and last line). – Otterburn

Answer 3

I had problems with Chrome using US date format (mm/dd/yyyy) instead of the GB dd/mm/yyyy format (even though I had set these in Chrome). Using:

options.addArguments("--lang=en-GB");

resolved this.

Luz

This worked for me whereas the accepted solution didn't (assuming for English it would be "--lang=en"). It seems it won't work just with the language two-letter code, but one must add the specific "spell" such as "GB". Edit: using the python variant on 3.141.0 – Repairman

Answer 4

As of now (Jan 2020 - Chrome Version 79.0.3945.130) The C# in the accepted answer does not work.

The simplest approach that I can find to work in C# presently:

ChromeOptions options = new ChromeOptions();
options.AddUserProfilePreference("intl.accept_languages", language);
WebDriver driver = new ChromeDriver(chromeOptions);

Sanies

Answer 5

I was trying the same and above listed nothing worked for me, at last I tried the below and it worked:

ChromeOptions chromeOptions = new ChromeOptions();

Map<String, Object> prefs = new HashMap<String, Object>();

prefs.put("intl.accept_languages", "ja-jp,ja");

chromeOptions.setExperimentalOption("prefs", prefs);

WebDriver driver = new ChromeDriver(chromeOptions);

Itself

Answer 6

For me --lang also didn't work. I wanted to perform Facebook Login tests with specific language (en-US instead of en-GB) and what I found is that some pages (like Facebook) set interface according to system environment variable LANG... So if above answers doesn't work, try changing LANG environment variable. Tested on Linux.

Justiciable

en-US and en-GB do not work for me. Who can help me? – Choriamb

Answer 7

For latest versions below code should work.

ChromeOptions options = new ChromeOptions();
options.addArguments("--accept-lang=" + locale);
return new ChromeDriver(options);

https://peter.sh/experiments/chromium-command-line-switches/#accept-lang

Identification

"should work" or "does work"? – Engelhardt

@Engelhardt does work. – Identification

Don't work for me – Engelhardt

Answer 8

From Chrome v117

You need to set intl.selected_languages & intl.accept_languages,

ChromeOptions options = new ChromeOptions();
Map<String, Object> prefs = new HashMap<>();
prefs.put("intl.accept_languages", language); //language: "es"
prefs.put("intl.selected_languages", language);
options.setExperimentalOption("prefs", prefs);

Gilletta

Answer 9

I had the same problem. I tried to solve the problem including

chromeOptions = Options()
chromeOptions.add_argument('--lang=es')

but it didn't work (I have discovered that isn't necessary).

It works when I changed the locale:

locale -a
sudo apt-get install language-pack-es
sudo dpkg-reconfigure locales

It is es_ES.UTF-8 UTF-8 for Spanish. Finally, you have to start a new shell in order to get new env variables (LANG=C.UTF-8 to es_ES.UTF-8)

Clovis

Thank you a lot! I had a multi-language website and I needed to get the content in Russian for me. I was passing the --lang argument to Chrome but the website was providing an English content version nevertheless. And only after setting up the locales, everything got working fine. – Hoseahoseia

Answer 10

website = 'https://e-katalog.lkpp.go.id/id/search-produk?q=' + mylist[i] + 
                                 '&order=relevance&limit=12&offset=' + str(1)
chrome_options = Options()
chrome_options.add_argument("--lang=en");
chrome_options.add_experimental_option('excludeSwitches', ['enable-logging'])

prefs = {
          "translate_whitelists": {'id':'en'},
          "translate":{"enabled":"True"}}
chrome_options.add_experimental_option("prefs", prefs)
driver = webdriver.Chrome('C:\webdrivers\chromedriver.exe',options=chrome_options)
time.sleep(10)
driver.get(website)
time.sleep(5)

Odyssey

Answer 11

For people using Selenium with ruby:

I made it work this way:

prefs_hash = {
       'credentials_enable_service' => false,
       'profile' => {
           'password_manager_enabled' => false,
       },
       'intl.accept_languages' => 'fr-FR', // <- here
    }

// [...]

browser = Watir::Browser.new :chrome, :prefs => prefs_hash, switches: switches, desired_capabilities: caps

Scrubber

Answer 12

With latest version of Chrome 122.0.6261.129. It took almost more than 3 hours to find exact solution. Please use below:

options.addArguments("--accept-lang=de-DE");

Exuberate

Learn how to use markdown. Also, I suggest that you take the tour and visit the help center in order to learn how this website works. – Personable

Answer 13

In JavaScript this worked for me. inside the wdio.conf.js file I configurate the capabilities like this. And then in the terminal run the npm install.

capabilities: [{
        maxInstances: 7,
        browserName: 'chrome',
        browserVersion: '126.0.6478.127',
        'goog:chromeOptions' : {
            prefs: {
                download: {
                    'default_directory': downloadDir,
                    'directory_upgrade': false,
                    'promt_for_download': false
                },
                'intl.accept_languages': 'en,en_US'
            }
        }
    }],

Strychnic