Percy

Percy is a visual testing service by BrowserStack that detects visual changes in websites on every commit. It works with existing Storybook, Playwright or Selenium tests rather than requiring separate visual test scripts.

Instead of strict pixel-to-pixel comparison, Percy uses AI to reduce noise and help reviewers identify meaningful visual changes faster, and visual regressions are reviewed and approved in its interface. BrowserStack also offers a website scanner as part of the Percy product.

Percy is a commercial service with a free plan and a free trial.