BrowserStack

BrowserStack began when its founders, then running a tech consulting business, struggled to test a newly built website across different devices, operating systems, and browsers, and found the struggle was universal. The company now runs a cloud platform that gives development teams instant access to real browsers, devices, and data centers for testing websites and mobile apps for functionality, performance, and visual appeal.

Its products span manual cross-browser testing, browser automation on a cloud grid, manual and automated testing of iOS and Android apps on real devices, test management, test reporting and analytics, visual testing, and accessibility testing, alongside low-code automation and AI agents for test planning, authoring, and maintenance. Development and quality-assurance teams use these products to check how their websites and applications render and function across browsers, operating systems, and devices before release.