Selenium Tutorial for Beginners

What is Selenium?

Selenium is an open-source framework for automating web browsers. It supports multiple programming languages (Java, Python, C#, JavaScript) and works across Chrome, Firefox, Safari, and Edge. Selenium WebDriver lets you write scripts that interact with web applications exactly like a real user — clicking buttons, filling forms, and verifying results.

It's the most widely used automation tool in the industry, required for virtually every SDET and QA automation role. If you're starting your automation journey, Selenium is where most testers begin.

What You'll Learn

Quick Example

Here's a real Selenium test that logs into the TesterRank banking portal:

@Test
public void testBankingLogin() {
    WebDriver driver = new ChromeDriver();
    driver.get("https://testerrank.com/banking/login");

    driver.findElement(By.id("userId")).sendKeys("testuser");
    driver.findElement(By.id("password")).sendKeys("Test@123");
    driver.findElement(By.id("loginBtn")).click();

    Assert.assertTrue(
        driver.findElement(By.id("welcomeUser")).isDisplayed()
    );
    driver.quit();
}

Selenium vs Other Tools

Related Resources