Driver Service Class

The Service classes are for managing the starting and stopping of local drivers. They cannot be used with a Remote WebDriver session.

Service classes allow you to specify information about the driver, like location and which port to use. They also let you specify what arguments get passed to the command line. Most of the useful arguments are related to logging.

Default Service instance

To start a driver with a default service instance:

    ChromeDriverService service = new ChromeDriverService.Builder().build();
    driver = new ChromeDriver(service);

Note: Java Service classes only allow values to be set during construction with a Builder pattern.

Selenium v4.11

    service = webdriver.ChromeService()
    driver = webdriver.Chrome(service=service)

Note: Python Service classes only allow values to be set as arguments to the constructor.

            var service = ChromeDriverService.CreateDefaultService();
            driver = new ChromeDriver(service);

Note: .NET Service classes allow values to be set as properties.

    service =
    @driver = Selenium::WebDriver.for :chrome, service: service

Note: Ruby Service classes allow values to be set either as arguments in the constructor or as attributes.

Driver location

Note: If you are using Selenium 4.6 or greater, you shouldn’t need to set a driver location. If you cannot update Selenium or have an advanced use case, here is how to specify the driver location:

    ChromeDriverService service =
        new ChromeDriverService.Builder().usingDriverExecutable(driverPath).build();

Selenium v4.11

    service = webdriver.ChromeService(executable_path=chromedriver_bin)

Selenium v4.9

            var service = ChromeDriverService.CreateDefaultService(GetDriverLocation(options));

Selenium v4.8

    service.executable_path = driver_path

Driver port

If you want the driver to run on a specific port, you may specify it as follows:

    ChromeDriverService service = new ChromeDriverService.Builder().usingPort(1234).build();

Selenium v4.11

    service = webdriver.ChromeService(port=1234)
            service.Port = 1234;


Logging functionality varies between browsers. Most browsers allow you to specify location and level of logs. Take a look at the respective browser page: