Overview
BrowserStack is a leading cloud-based testing platform that gives developers and QA teams instant access to 3,500+ browsers and real iOS and Android devices. Instead of maintaining a costly device lab, teams can run manual and automated tests across the full matrix of browsers, operating systems, and screen sizes that their users actually encounter.
Developers love BrowserStack because it unifies the entire testing lifecycle in one place — from live manual testing and browser automation to visual regression, accessibility compliance, and load testing. With the recent introduction of Test Companion, an agentic AI testing suite, teams can plan, author, execute, debug, and maintain tests directly from their IDE, dramatically boosting productivity and coverage.
Trusted by more than 50,000 customers globally, BrowserStack helps engineering teams ship faster with confidence, eliminating flaky environments and manual QA bottlenecks while keeping test data secure and centralized.
Key Features
- Live Cross-Browser Testing: Manually test websites and web apps on real browsers across thousands of device and OS combinations.
- Real Device Cloud: Run iOS and Android apps on real physical devices for manual and automated testing.
- Browser Automation Grid: A Selenium, Cypress, and Playwright-compatible grid for running automated test suites at scale.
- Test Companion (Agentic AI): 20+ AI agents that plan, author, execute, debug, and maintain tests from your IDE, boosting productivity by up to 4x.
- Visual & Accessibility Testing: Percy for automated visual regression and dedicated tools for WCAG/ADA compliance.
- Test Management & Analytics: Unify test cases, track results, and monitor performance across all testing workflows.
Use Cases
- QA Teams: Expand test coverage across 150+ real device-OS combinations to catch cross-browser and cross-device bugs before release.
- Development Teams: Integrate automated testing into CI/CD pipelines using the browser automation grid to

