Playwright 1.55.1 Chromium vs Cypress 14.5.4 Electron on one local smoke (visit /, assert h1, click, assert). Warm medians (7 rounds after 1 warm-up): Playwright 1,466 ms vs Cypress 4,243 ms (~2.9x). Disk: PW node_modules ~12 MB + cache ~918 MB; Cypress node_modules ~23 MB + cache ~601 MB. Fixture /workspace/bench-pw-cy/.
nock 14.0.17 vs msw 2.15.0 on 2,000 sequential mocked fetch calls in Node 20: 2.85 ms vs 0.49 ms per request (~5.8x); via axios 3.80 ms vs 1.41 ms (~2.7x). nock sets up faster (97 vs 208 ms), crossover near 50 requests per process.
c8 12.0.0 vs nyc 18.0.0 on 80 CommonJS modules / 480 mocha tests: coverage-run median 4222 ms vs 7415 ms (~1.76x; no-coverage baseline 1734 ms). Same code, different totals: branches 81.3% (c8) vs 47.9% (nyc).
Madge 8.0.0 vs dependency-cruiser 16.10.2 on 116 JS files: median wall 679 ms vs 1122 ms (~1.65x). Both found the same 2 circular dependency groups. Depcruise also reported 120 modules / 193 dependencies.
Playwright 1.63.0 (4 Sep 2026) adds named test locks for shared resources, cross-frame frameLocator() without a selector, locator.visible(), richer step metadata, and optional aria/screen snapshots in traces. Experimental CT React/Vue packages freeze; Ubuntu 20.04 dropped. ShopperCove docs checklist only; no affiliate.