LINE Design System

Design principles for LINE's design system that guide their products using common values and design principles focused on user needs and chat-first experience.

  1. WE ≠ USERS

    As designers, we are not the main target of our designs. We must investigate what users actually need rather than assuming they share our perspectives.

  2. Clear primary tasks

    Make primary tasks intuitive so users can perform important tasks without overthinking, as users gauge LINE on functionality beyond aesthetics.

  3. Chat comes first

    LINE’s first priority is enabling conversations between people, with new features designed to reinforce the core chat experience.

  4. Reliable design

    Pursue trustworthy design that is intuitive for all ages across multiple use cases, maintaining LINE’s aesthetic standards.

  5. A cohesive experience

    Strive to provide a singular, consistent experience across screens, ensuring seamless flow that considers context and relationships between screens.

  6. Respect for legacy

    Respect what’s already there and phase in changes appropriately, as users may have unexpected usage patterns or familiarity with existing UX.