Comparison: Delta-QA or Chromatic, Testing Full Pages or Components?

Chromatic is the reference tool for visual testing of UI components via Storybook. Delta-QA tests complete web pages with real user journeys. These aren't direct competitors — they're two different levels of testing. And understanding the difference prevents thinking you're protected when you're only half-covered.

What Chromatic Tests

Chromatic captures each Storybook story and compares it to its previous version. A button in its 5 states. A card with short and long titles. An empty and pre-filled form.

It's powerful for protecting a component library. Any modification to a shared component is immediately detected. The review interface is excellent for designer-developer collaboration.

The problem is that Chromatic tests components in isolation. A component alone, in a neutral container, without page context. And that's where bugs hide.

What Delta-QA Tests

Delta-QA tests complete pages.…