Playwright — Microsoft's End-to-End Test Automation Framework
Playwright is an open-source end-to-end test automation framework created by Microsoft that enables reliable testing across all modern browsers (Chromium, Firefox, WebKit). Built by the original creators of Puppeteer, Playwright delivers auto-wait, retry-agnostic assertions, and multi-tab/multi-browser testing with a single API. With 65,000+ GitHub stars, 4 million weekly npm downloads, and adoption by Adobe, React, and Visual Studio Code, Playwright has become the industry standard for browser testing. Its built-in test runner, Codegen (record-and-playback), and Trace Viewer (time-travel debugging) solve the flaky test problem that plagues E2E testing.
Features
✦Cross-browser: test on Chromium, Firefox, and WebKit with a single unified API
✦Auto-wait and retry: built-in assertions that wait for elements — eliminates flaky tests
✦Codegen: record browser interactions and generate test code in JavaScript, Python, Java, C#
✦Trace Viewer: time-travel debugger showing DOM snapshots, network, console, and action logs
✦Parallel execution: sharded test runs across workers and browsers with built-in test runner
✦Visual regression: pixel-by-pixel screenshot comparison with automated baseline management
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