Playwright

Playwright is a free tool that opens and drives a real web browser in the background, no window pops up. It can click, scroll, type, and wait, exactly like a person.

Why it matters

Some pages look empty until their JavaScript finishes loading. A plain request grabs them too early. Playwright opens the page, waits for the content to appear, and then you read the finished version.

When to reach for it

Second. After a plain request comes back empty. It's heavier and slower than a simple fetch, so you use it only when you need it.

Worth knowing

The classic mistake is reading the page before it's done loading. Wait for the actual content to show up, not a fixed number of seconds.