Playwright vs Selenium for flaky browser tests

For flaky browser tests, Playwright is usually the better choice than Selenium.

Why Playwright tends to be less flaky

• Auto-waiting built in: Playwright waits for elements to be ready before interacting, which removes a lot of timing-related failures.
• Better synchronization model: It’s designed around modern web apps with dynamic rendering, async updates, and SPAs.
• Stronger locators: Its locator system encourages stable, user-facing selectors like role/text/test id, reducing brittle tests.
• Browser context isolation: Each test can run in a clean isolated context more easily, which reduces cross-test interference.
• Retries and tracing: Playwright has good built-in tooling for debugging flakes, including traces, screenshots, and video.

Where Selenium is more prone to flakiness

• You often need to manually wait for page state, elements, or JS events.
• Tests can become brittle if they depend on exact timing or stale DOM references.
• Stability depends more on how carefully the framework and test code are written.

When Selenium still makes sense

• You already have a large Selenium suite and want to avoid migration cost.
• You need support for a specific environment/tooling ecosystem.
• Your team already has strong Selenium expertise and the flakiness can be managed with disciplined waits and architecture.

Quick recommendation

If your main pain point is flaky browser tests, choose:

• Playwright for new projects
• Selenium only if you have strong constraints or an existing investment

If you want, I can also give you a side-by-side comparison table focused specifically on flakiness, debugging, and CI stability.