htmlunitdriver headless browser in selenium

HtmlUnitDriver – Non GUI Browser in Selenium

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What is HtmlUnitDriver?

HtmlUnitDriver is headless driver providing non-GUI implementation of Selenium WebDriver. It is based on HtmlUnit, fastest and light-weight browser implemented in Java.

WebDriver driver = new HtmlUnitDriver();

Advantages of HtmlUnitDriver

  1. Test execution using HtmlUnitDriver is very fast. Since, it is the fastest implementation of Selenium WebDriver.
  2. Being headless and fast, it is an ideal choice for web scrapping.
  3. Its browser – htmlUnit is Java-based. Hence, it is platform-independent.
  4. It also supports JavaScript execution through an in-built Rhino javascript engine.

Limitations of HtmlUnitDriver

  1. Being non-GUI makes it difficult to create scripts and debug issues while scripting.
  2. The Rhino javascript engine of HtmlUnitDriver makes it unsuitable to emulate other popular browser’s javascript behavior.

Code Snippet for HtmlUnitDriver

The script creation in HtmlUnitDriver is similar to scripting in any other driver, only the driver instantiation part is different. The below script, when executed will run the test in non-GUI mode without opening any browser.

public class HtmlUnitDriverDemo {
	public void htmlUnitDriverTest(){
		//Instantiating HtmlUnitDriver
		WebDriver driver = new HtmlUnitDriver();
		//Navigate to		
		//Printing page title

That’s all we have in this post, comment below if you have any queries. Also please share this post with your friends and don’t forget to check our complete selenium tutorial here.

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1 thought on “HtmlUnitDriver – Non GUI Browser in Selenium”

  1. Hello Sir,

    I’m using HTMLunitdriver, but I’m not able to click an element that is not there in the source code. Is there any solution? Or is it a drawback of the HtmlUnit driver?


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