End-to-End Browser Testing with Playwright

Playwright is Microsoft's open-source framework for browser automation and end-to-end web application testing. It provides one API for Chromium, Firefox, and WebKit, making cross-browser behavior easier to cover with the same codebase.

I use it with development tools and coding agents to execute browser scenarios and reduce repetitive manual review. An agent or a headless browser inside an editor is not a substitute, however, for explicit tests across the engines and viewport sizes the product supports.

Start with critical paths such as registration, sign-in, checkout, or form submission, then expand coverage. Keep tests repeatable and independent in their data, and preserve human review for visual and behavioral cases that a single assertion cannot express.