What is Selenium explain in brief?

What is Selenium explain in brief?

Selenium is a popular testing tool that gives testers the ability to automate testing across multiple browsers and operating systems, allowing testers to write code in their preferred programming language. It supports all prohramming languages like Java, Python, C# , JavaScript , Ruby and PHP. Selenium have three different component 1.Selenium IDE(Record and Playback Tool) 2.Selenium WebDriver-Script Based automation tool 3. Selenium Grid:Selenium Grid allows you to run multiple tests at the same time on multiple machines, also known as parallel testing.

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