The first question, and the wrong one
"Cypress or Playwright?" It is always the first question. It is rarely the right one.
I have shipped both to production. A Cypress foundation running in the CI of a booking platform today, and test governance on industrial machinery software where the suites run daily. On neither project was the tool the thing that separated a suite that protects production from a suite the team eventually switches off.
The question still deserves a real answer.
The one difference that explains the rest
Cypress runs inside the browser, in the same event loop as your application. Playwright drives the browser from outside, over a debug protocol.
Everything else follows from that.
Because it lives in the page, Cypress sees the application the way the application sees itself. You reach the DOM, the store, the network, with no bridge in between. The runner replays each step with the exact DOM state at that moment. For understanding why a test broke, nothing is better.
The price of that closeness is confinement. A Cypress test lives in one tab. Multiple tabs, multiple contexts, two user sessions inside one scenario: that is where it strains, and the workarounds are ugly.
Playwright does not have the problem, because it is not in the page. It opens as many browser contexts as it likes, each with its own cookies and storage. Testing a chat between two users, or an approval flow where one submits and another validates, writes itself.
Where Playwright genuinely wins
Parallelism. Native and free. Split the suite across workers, shard across CI machines, and it is a command-line flag. Cypress has historically routed parallelisation through Cypress Cloud, which means an invoice, or through a third-party service you host yourself.
Browsers. Chromium, Firefox and WebKit behind one API. If your users are on Safari, that is not a detail.
The trace viewer. One trace file carries the screenshots, the DOM, the network and the console for the whole run. You open a CI failure on your own machine and rewind it. It is the best answer to "works on my machine" I have seen.
Languages. JavaScript and TypeScript, but also Python, Java and C#. On a .NET product whose team does not write JS, that changes the conversation.
Where Cypress still holds
The developer experience is still ahead. The interactive runner, element selection, instant replay: a developer who has never written a test produces something useful in an afternoon. That matters more than people admit, because a suite nobody enjoys writing is a suite that dies.
And if your team has two years of Cypress in a monorepo, with affected-project execution and a tuned CI, migrating costs weeks for a marginal gain. Do not do it for fashion.
What I recommend
New project in 2026: Playwright. Native parallelism, multi-context and the trace viewer are worth more than the comfort of the Cypress runner, and the ergonomics gap has narrowed a lot.
Existing Cypress project that works: stay. Spend the migration budget on making the tests you already have stable instead.
And now the real answer
On every project where the E2E suite ended up abandoned, the tool was never what failed. It was always the same four things.
Selectors bound to CSS, which break on the first redesign. Tests that depend on each other, so one failure cascades. Uncontrolled data, so the suite is green on Monday and red on Tuesday without a line of code changing. And a run time past fifteen minutes, after which developers learn to route around the gate.
Fix those four and either tool will protect you. Ignore them and neither will save you.
The tool is the smallest decision on the project.