Playwright

Playwright is a browser automation framework that drives Chromium, Firefox and WebKit through a single API.

Its reliability is the practical difference from older tools: auto-waiting means it waits for elements to be actionable rather than requiring manual sleeps, which eliminates the largest source of flaky tests.

It handles multiple browser contexts, network interception and mobile emulation, making it suitable for both testing and scraping work that needs a real rendering engine.