Percy
ELI5 — The Vibe Check
Percy is a visual testing platform that screenshots your pages across different browsers and screen sizes, then highlights any visual differences between builds. It's like having a designer QA every single page of your app on every commit. No more 'this button moved 2px on Safari' surprises.
Real Talk
Percy (by BrowserStack) is a visual testing and review platform that captures screenshots of web pages across multiple browsers, viewports, and devices. It integrates with CI/CD pipelines to detect visual regressions, providing a diff view and approval workflow for visual changes.
When You'll Hear This
"Percy tests our app across 10 browser/viewport combos on every PR" / "We use Percy for full-page visual testing and Chromatic for component-level testing"
Related Terms
Chromatic
Chromatic takes screenshots of your UI components and yells at you when something changes unexpectedly.
Playwright
Playwright is a robot that can control real browsers — Chrome, Firefox, and Safari — all at once.
Storybook
Storybook is like a showroom for your UI components.
Visual Regression Test
A visual regression test takes a screenshot of your UI, and next time it checks if anything LOOKS different — pixel by pixel.