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From Protractor to Playwright: Speeding Up UI and API Test Automation

When Protractor was officially deprecated, it wasn’t just the end of a tool—it was a wake-up call for teams relying on aging test infrastructure. At VaynerSystems, we recently started a strategic migration from Protractor to Playwright, modernizing our end-to-end (E2E) test suite for better speed, reliability, and maintainability. The results speak for themselves.


Why Protractor Had to Go

Protractor served its purpose in Angular-heavy projects, but its end-of-life status brought major drawbacks:

  • No longer maintained - This means no new features, no security patches, and increasing incompatibility with evolving browser versions.
  • 🧪 Stale test environment – Our Protractor setup was locked to Chrome v98, running on a Zalenium-based infrastructure, while the current version is Chrome v137. That's a 39-version lag—creating obvious test reliability and coverage risks.
  • 🐌 Slow execution – Our tests became bloated and sluggish. As projects grew, feedback loops widened and CI pipelines slowed down.

It was time to move forward.


Enter Playwright: A Modern framework for E2E + API Testing

We selected Microsoft's Playwright as our new testing framework—and it didn’t take long to validate the decision. The tool offers a developer-friendly, fast, and powerful approach to browser automation.

Key advantages of Playwright:

  • Parallel execution & fast startup times
  • 🧪 Support for all modern browsers (Chromium, Firefox, WebKit) out-of-the-box
  • 🛠️ Built-in support for test retries, traces, and debugging
  • 🌐 Integrated API testing capabilities to pair UI validation with backend verification
  • 🧭 Modern async/await syntax and native TypeScript support for clean and maintainable test code


Numbers don’t lie: Playwright vs. Protractor

We began the transition by rewriting our three heaviest UI tests, combining API assertions with UI workflows. Here's the performance comparison:

Test SuiteProtractor Execution Time (min)Playwright Execution Time (min)
project.spec.ts12.25.3
smoke.spec.ts13.24.3
market-case.spec.ts8.04.2

That’s 2x to 3x faster execution, with significantly better stability and traceability.

Additionally, Playwright's trace viewer and auto-wait mechanisms have reduced flakiness, saving hours of debugging every sprint.


Seamless API integration

One of the biggest wins in this migration was combining UI and API verifications in a single test suite using Playwright’s native APIRequestContext.

This allows us to:

  • Validate backend data directly before and after UI interactions
  • Eliminate unnecessary UI steps when validating business logic
  • Accelerate test execution by blending layers smartly

This unified strategy means faster, more reliable tests that give deeper insight into failures.


How VaynerSystems can help

At VaynerSystems, we specialize in building custom software - and that includes delivering modern, scalable QA solutions tailored to your tech stack and delivery pace.

If your team is:

  • Still running legacy Protractor tests
  • Struggling with slow or flaky automation
  • Planning to scale QA without compromising quality

📩 Contact us for expert guidance and tailored automation strategies. We can help you:

  • Design a robust migration plan from Protractor to Playwright
  • Integrate API testing into your E2E flow
  • Establish CI/CD-ready test architecture
  • Accelerate feedback loops without losing precision


Final thoughts

Migrating to Playwright is more than a tool switch - it's a strategic upgrade in how your team thinks about automation. It’s about speed, visibility, and future - proofing your QA efforts.

Protractor served us well, but the future is faster - and Playwright is already here.

Visual Testing with Playwright