Cypress Alternative: Why Teams Move to Playwright (and SUSA)

Cypress changed how web testing is done — promised a better developer experience than Selenium, and mostly delivered. But Cypress has architectural constraints that matter at scale, and Playwright has

Cypress changed how web testing is done — promised a better developer experience than Selenium, and mostly delivered. But Cypress has architectural constraints that matter at scale, and Playwright has been eating its lunch since 2021. For teams hitting Cypress's ceilings, the answer is usually Playwright for scripted regression + SUSA for autonomous exploration.

What Cypress did right

• First-class developer experience — time-travel debugger, readable commands
• Runs in-browser (same origin as app), so no separate driver process
• Fast for single-origin flows
• Network interception built in
• Great documentation

For many teams, Cypress was the first test framework they enjoyed using.

Where Cypress struggles

1. Same-origin constraint — Cypress tests historically could not cross domains mid-test (improved in recent versions via cy.origin, but still awkward)
2. No real multi-tab — simulated, not actual
3. iframe handling — better than Selenium, not as clean as Playwright
4. Browser support — Chromium-family plus Firefox; no proper Safari (WebKit) support until experimental recent additions
5. Parallelism — needs the paid Dashboard for efficient parallel runs
6. Mobile emulation limited — responsive viewports work, not real mobile browsers

What Playwright offers

• Cross-origin, multi-tab, iframe — all first-class
• WebKit, Chromium, Firefox — all supported
• Free parallelism via test sharding
• Better auto-wait heuristics (less flake)
• API testing, visual testing, mobile emulation — all built in
• Codegen for recording user flows as test scripts

Cypress vs Playwright at a glance

Playwright wins on technical capability in 2026. Cypress wins on familiarity if your team already knows it.

Where SUSA fits

SUSA replaces the "I need to write more Cypress tests" treadmill with autonomous exploration that generates Playwright scripts for you. The workflow:

1. SUSA explores your app (web + mobile)
2. SUSA generates Playwright test scripts from discovered flows
3. Scripts committed; run in CI
4. New exploration each release; new scripts merge in

You end up with Playwright regression without spending engineering time writing it.

Migration path from Cypress

Not all-at-once. Incremental:

1. Keep Cypress running. Do not delete existing tests.
2. Write new tests in Playwright for new features. Teams get familiar fast.
3. Run SUSA explorations — get auto-generated Playwright regression scripts
4. Identify duplicate coverage between old Cypress and new Playwright. Delete Cypress duplicates.
5. Over 1-2 quarters, Cypress shrinks, Playwright + SUSA grows.
6. Eventually retire Cypress when the remaining tests have been ported or superseded.

No big-bang migration. Zero downtime. Tests move one feature at a time.

When to stay with Cypress

• Small app, few tests, team small and happy with Cypress
• Tests all same-origin and single-tab
• Team does not need WebKit (Safari-specific testing)
• Cypress Dashboard features (analytics, flake detection) are delivering real value

For those teams, migrating is churn without payoff. Stick with Cypress.

When to switch

• Multi-origin flows cannot be tested cleanly
• Flake rate climbing in Cypress suite
• Need WebKit coverage and Cypress's experimental WebKit is not enough
• Parallel execution cost (via Dashboard) meaningful
• Considering visual regression — Playwright's built-in is simpler than Cypress plugins

The combination

Playwright for scripted regression (generated mostly by SUSA + hand-written for specific assertions). SUSA for autonomous exploration, discovery, and persona-based UX/accessibility/security testing. Together they cover 90%+ of what a test team used to hand-write in Cypress — with less flake, less maintenance, and more coverage.

Start: pip install susatest-agent && susatest-agent test https://yourapp.com. First exploration in 15 minutes. First Playwright scripts auto-generated in the same run.