What is Playwright?
Playwright is an open-source browser automation framework developed by Microsoft that enables reliable end-to-end testing across Chromium, Firefox, and WebKit with a single API. Its locators wait automatically for elements to be ready, and its tracing, network interception and isolated browser contexts are the reasons teams migrate to it from Selenium and Cypress.
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What does Playwright mean in practice?
Playwright was released in 2020 and has rapidly become the most popular browser automation framework for new projects. It communicates with browsers via the Chrome DevTools Protocol (for Chromium) and equivalent protocols for Firefox and WebKit, bypassing the WebDriver layer that Selenium uses.
Key features that differentiate Playwright: auto-waiting (automatically waits for elements to be actionable before interacting), browser contexts (lightweight isolation between tests without launching new browsers), Trace Viewer (visual debugger that records every action, screenshot, and network request), and built-in API testing.
Playwright supports JavaScript/TypeScript, Python, Java, and C#. The TypeScript API is the primary and most polished. It includes a test runner with parallel execution, fixtures, and reporting out of the box.
For QA engineers, Playwright's auto-waiting alone eliminates the most common source of flaky tests. Combined with Trace Viewer for debugging CI failures, it significantly reduces the time spent maintaining test infrastructure.
Why do interviewers ask about Playwright?
Playwright is the most asked-about automation framework in 2026 QA interviews. Knowing Playwright demonstrates you are current with modern tooling and understand why it improves on older frameworks.
What does Playwright look like in a real project?
A QA team migrates 500 Selenium tests to Playwright. Flaky test rate drops from 12% to 2%. Pipeline time decreases from 40 minutes to 15 minutes due to parallel browser contexts. Trace Viewer reduces failure investigation time from 30 minutes to 5 minutes per failure.
How should you talk about Playwright in an interview?
Explain what makes Playwright different: auto-waiting, browser contexts, Trace Viewer. Compare it to Selenium specifically. If you have migration experience, discuss what changed and what improved. Show hands-on knowledge, not just documentation summaries.
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