Chromatic is a visual regression testing tool to help catch UI regression in web applications. It works by taking snapshots of UI components and comparing them against previous snapshots when they change. It's a hosted service that integrates with popular cloud code hosting services. Built on top of Storybook, it does component-level visual regression testing. It can render the components in different viewport widths for responsive testing and integrates with CI workflows, generating the UI changeset for every commit, which makes it easy to review. Our teams find the visual difference between Chromatic and other tools in this space much better; the ability to highlight changes visually makes it particularly useful.