A design system is a comprehensive collection of reusable components, guidelines, and standards that ensure consistency across a digital product’s user interface. It includes elements like color palettes, typography rules, spacing, grid systems, UI components, and interaction patterns. Beyond just visuals, a design system fosters collaboration between design and development teams, enabling faster iteration, scalability, and a cohesive user experience across all touchpoints. It acts as the single source of truth for building and maintaining product interfaces at scale.