Blog

Percy, acquired by BrowserStack in 2020, is one of the pioneers of cloud-based visual testing. Its promise: integrate visual regression into an existing CI pipeline in a few lines of configuration, with centralized diff review through a web interface, and broad compatibility (Cypress, Playwright, Selenium, Storybook). Since the BrowserStack integration, the offering has moved closer to the vendor's cross-browser testing ecosystem, which shifts both positioning and pricing structure.

This page gathers articles dedicated to Percy: technical analysis of its SDK, examination of its per-snapshot pricing model, feedback on the quality of its diff algorithm, comparisons against Chromatic, Applitools or Delta-QA, and discussion of the implications of cloud hosting (essentially US-based) for teams subject to strict GDPR constraints. We also cover the cases where Percy remains relevant — teams already on BrowserStack, need for a ready-to-use SaaS infrastructure — and those where a local or desktop alternative like Delta-QA better answers sovereignty or budget constraints. The goal is to provide a factual overview, not a one-sided commercial pitch against any vendor.