When teams evaluate browser automation tools today, one of the most common comparisons is Playwright vs Selenium. Selenium has been the industry standard for more than a decade, powering countless test automation frameworks. But newer tools like Playwright are changing how teams approach end-to-end testing with faster execution, built-in parallelization, and modern browser APIs. So how do these tools actually compare? In this guide, we break down the key differences between Playwright and Selenium, including their architecture, features, performance, and real-world use cases.