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Glossary Term
Development

Component Library

A repository of reusable, pre-tested UI components that developers can reference to build applications consistently.

Related Service: Web Development

Component libraries: consistency at scale

A component library is a reusable set of UI building blocks (buttons, forms, cards, navigation, layout patterns) with shared styles and behaviour. It helps teams build faster while keeping UX consistent - which improves conversion, accessibility, and maintainability.

Benefits

  • Faster development through reuse and standard patterns.
  • More consistent UX across pages and funnels.
  • Accessibility improvements baked into shared components.

Best practices

  • Document usage and provide examples (do/don’t patterns).
  • Version changes and avoid breaking updates without migration notes.
  • Track component performance and bundle size (don’t ship unused UI).

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