Playwright
In plain terms
A cross-browser automation and testing framework from Microsoft.
Going deeper
Playwright automates Chromium, Firefox, and WebKit with auto-waiting and powerful features for reliable end-to-end tests. It's a modern Selenium successor.
Under the hood
Multi-browser, auto-waiting, and parallel; handles multiple tabs, origins, and network interception well.
Examples
E2E testing, cross-browser automation, multi-tab flows, CI testing.
Think of it like...
Like a universal test robot that drives every major browser identically.