What is Storybook used for?

Storybook is used for:

1. Isolated development of UI components Lets you develop and view components outside the context of the main application, without business logic, routing, or anything else.
2. Visual documentation Each component is presented as a story with different states. This creates living documentation that is easy to review and keep up to date.
3. Testing appearance and behavior Supports visual tests (for example, snapshot tests), accessibility checks, and automation of user scenarios.
4. Team collaboration Simplifies interaction between designers, developers, and QA, everyone sees how each component should look and behave.
5. Design systems and reusable libraries Ideal for building scalable design systems, where clarity, repeatability, and control over the state of every interface element matter.