selenium-testing

Overview

Selenium WebDriver is a W3C-standard browser automation protocol with the broadest language support: Java, Python, JavaScript, C#, Ruby, Kotlin, PHP - all official.

When to use

• The team has substantial existing Selenium investment; migration cost is prohibitive.
• The codebase is in a language with limited modern E2E support (e.g., older C# / Ruby / PHP projects).
• W3C standard adherence is contractually required.
• Cross-browser including IE11 is required (rare; deprecated).

For new projects in 2026+: pick Playwright or Cypress unless constraints dictate Selenium.