Skip to main content
Automation
DEFINITION

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.

Start a Free Mock Interview

Free to start · 7-day trial on paid plans

IN DEPTH

In depth.

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 IT MATTERS

Why interviewers ask about this.

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.

EXAMPLE

Example scenario.

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.

TIP

Interview tip.

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.

Related Terms

Explore related glossary terms to deepen your understanding.

Page Object Model (POM)The Page Object Model (POM) is a design pattern in test automation where each web page or component is represented by a class that encapsulates its elements and interactions, separating test logic from UI details.
Test FixtureA test fixture is the fixed baseline state or environment used as a starting point for test execution, including setup logic that prepares the system and teardown logic that cleans up afterward.
Test AutomationTest automation is the practice of using software tools and scripts to execute tests, compare actual outcomes to expected outcomes, and report results, replacing or augmenting manual test execution.
End-to-End TestingEnd-to-end (E2E) testing validates complete user workflows from start to finish, simulating real user behavior across the entire application stack, frontend, backend, database, and external integrations.
Flaky TestA flaky test is an automated test that produces inconsistent pass/fail results across multiple runs without any changes to the source code or test itself.

Related Resources

Dive deeper with these related interview prep pages.

Playwright Interview QuestionsPlaywright vs Selenium 2026Build a Playwright FrameworkPlaywright Resources & Toolkits
EXEC.NOW

Ready to Ace Your QA Interview?

Practice explaining playwright and other key concepts with our AI interviewer.

Join 1,200+ QA engineers already practicing with AssertHired.

Start your free QA interview
FREE.TO.START  ·  7.DAY.TRIAL ON PAID PLANS
Written by Aston Cook, Senior QA EngineerLast updated May 2026