Selenium vs Playwright: Which Test Automation Tool Should You Choose?

Almost every web test automation project today starts with the same question: Selenium or Playwright? Selenium has been the industry standard for well over a decade. Playwright, released by Microsoft in 2020, has quickly become the default choice for many new projects. Both are free, open source and capable of automating real browsers. The right choice depends less on which tool is "better" and more on your team, your application and the tests you already have.

Our QA automation engineers work with both tools on client projects, from new frameworks to rescuing old suites. This guide compares them on the points that actually decide real projects, and ends with a simple checklist you can use with your team.

The short answer

• Choose Playwright for a new web project, especially a modern single-page application, when your team is comfortable with TypeScript or Python and you want fast, stable tests with little setup.
• Choose Selenium when you already have a large, working Selenium suite, need a language Playwright doesn't support, must test on the real Safari or older browsers, or want to share skills and infrastructure with Appium mobile tests.
• Don't migrate a healthy Selenium suite just because Playwright is newer. Migrate when flakiness, speed or maintenance cost is hurting you and a pilot proves the gain.

How the two tools work

Selenium drives browsers through WebDriver, a W3C standard that the major browser vendors implement. Your test code sends commands to a driver, and the driver controls the browser. Because WebDriver is a standard, Selenium tests run against the real, branded browsers your users have: Chrome, Edge, Firefox and Safari. Selenium 4 added Selenium Manager, which downloads the right driver automatically, and support for the newer WebDriver BiDi protocol for features such as listening to console logs and network events.

Playwright takes a different approach. It ships its own builds of Chromium, Firefox and WebKit and talks to them over a fast, persistent connection. That tight control is what makes features like automatic waiting, network interception and tracing so smooth. The trade-off is that WebKit in Playwright is close to Safari but is not the Safari browser your macOS and iOS users run.

Side-by-side comparison

Speed and flakiness

Flaky tests, the ones that pass and fail at random, are the biggest reason teams stop trusting their automation. Most flakiness comes from timing: the test clicks a button before it is ready, or checks text before the page has updated. In Selenium you solve this with explicit waits, and a well-written framework is perfectly stable. The problem is that every engineer has to remember to wait correctly, every time.

Playwright waits automatically. Before clicking, it checks that the element is attached, visible, stable and enabled, and its assertions retry until they pass or time out. In our experience this removes a whole class of timing bugs, and it is the main reason teams moving from an old, flaky Selenium suite see more reliable results. Playwright's isolated browser contexts also make it cheap to run many tests in parallel without them sharing cookies or storage.

Raw execution speed matters less than people think. A slow suite is usually slow because of test design, such as logging in through the UI in every test or waiting on fixed sleeps, not because of the tool. Fix those first, whichever tool you use.

Language and team skills

Selenium's biggest strength is choice. If your developers write Java or C#, your testers can write Selenium tests in the same language, use the same IDE and share code. Playwright also supports Java, Python and .NET, but its best experience, including the built-in test runner, fixtures and UI mode, is in TypeScript and JavaScript. If your team is new to automation and your product has a JavaScript front end, Playwright with TypeScript is usually the quickest route to a productive suite.

Browser and device coverage

If a meaningful share of your users are on Safari, think carefully. Playwright's WebKit build catches most Safari engine issues and runs on Windows and Linux CI machines, which is convenient. But only Selenium, using safaridriver on a Mac or a cloud device grid, drives the real Safari. For regulated or high-traffic consumer products, that difference can matter.

For mobile, the two tools solve different problems. Playwright can emulate mobile viewports and touch in a desktop browser, which is great for responsive layout checks. Testing native Android and iOS apps needs Appium, which is built on the same WebDriver protocol as Selenium. Teams that test both web and native mobile often keep one Selenium and Appium skill set and one grid.

Debugging and reporting

This is where Playwright shines. Its trace viewer records every step of a failed test: a DOM snapshot before and after each action, network calls, console logs and a timeline. An engineer can open a failure from CI and see exactly what happened, often without re-running anything. With Selenium you can get close with screenshots, video from a cloud grid and good logging, but you have to build and maintain that yourself.

Should you migrate from Selenium to Playwright?

Migrate when there is a measurable problem, not because of fashion. Good reasons include a high flaky-test rate that you can't fix, a suite that takes too long to run in CI, or a framework so old that nobody wants to maintain it. A poor reason is "everyone is using Playwright now" when your existing suite is stable and trusted.

When we migrate a suite for a client, we don't rewrite everything at once. We run a pilot on the ten to twenty most valuable or most flaky tests, compare stability and run time against the Selenium versions, and only then plan the full move. Both suites can run side by side in the pipeline during the transition, so you never lose coverage. You can read more about how we approach this on our QA automation services page.

A checklist to decide

• What language does your team write every day? If it's TypeScript or JavaScript, lean towards Playwright.
• Do you have a large, stable Selenium suite today? If yes, keep it and improve it rather than rewriting.
• Must you test on the real Safari or on legacy browsers? If yes, Selenium with a device grid is safer.
• Do you also automate native mobile apps? Sharing WebDriver skills with Appium favours Selenium.
• Is flakiness or debugging time your main pain? Playwright's auto-waiting and traces help most here.
• How will tests run in CI? Both work with Jenkins, GitHub Actions and GitLab CI, so compare the cost of parallel runs on your plan.

Our recommendation

For most new web projects we start with Playwright and TypeScript, because teams get stable, debuggable tests quickly. For organisations with deep Java or C# skills, existing Selenium investment, real-Safari requirements or native mobile testing, Selenium remains an excellent, well-supported choice. Whichever you choose, the fundamentals matter more than the tool: test the right flows, keep tests independent, manage test data properly and run everything in your CI/CD pipeline on every change.

Automation isn't only for testing, either. If your team spends hours on repetitive work outside the product, see how RPA speeds up healthcare claims processing for the same principles applied to back-office work.