Component Library
A reusable collection of implemented interface components used across one or more products.
Plain English
Ready-to-use UI building blocks such as buttons forms dialogs and navigation elements.
In context
A component library packages tested interface behavior and styling so product teams can build consistent surfaces without recreating common elements for every feature.
Example
“Use the component library dialog so keyboard behavior and spacing stay consistent.”
When you'll hear this
- frontend development
- design handoff
- product implementation
Common misunderstanding
A component library is an implementation asset while a design system is broader and may also include principles patterns guidelines tokens and governance.
Also known as
UI component librarycomponent kitshared components
Commonly used by
Related terms
Often compared with
Updated: 2026-08-28
