What is Selenium?
Selenium is an open-source tool that lets you automate pretty much anything a real person would do in a web browser. Instead of just looking at web pages as static files, Selenium actually drives a real browser—Chrome, Firefox, Safari, Edge—and clicks, fills out forms, scrolls, and checks content just like you would.
Highlights:
Selenium WebDriver: This is the heart of Selenium. It talks directly to the browser through drivers like ChromeDriver or GeckoDriver and controls everything.
Selenium Grid: With Grid, you can run tests simultaneously across different machines, operating systems, and browsers. It’s perfect if you need to test a lot, fast.






