Modern browser automation from Microsoft that learned from all of Selenium's mistakes. Auto-waits for elements by default so you don't need explicit sleeps everywhere, runs headless out of the box, supports Chrome, Firefox and WebKit. The API is genuinely pleasant to work with. Faster execution, better debugging tools, built-in codegen that records your actions and turns them into code. If you're starting fresh with browser automation in 2025, pick this over Selenium.