Best Web Components libraries for Design Systems

The component libraries on this list are accessible and can be styled to match your brand and your design tokens.

Accessibility mandatory
Customisable style

Composition primitives

These libraries are the lowest level you can get. It's lower than unstyled components. You compose primitive to build the component you need. The best example for Web Components is fast-foundation that provides composable primitives to create accessible components.

  • @microsoft/fast-foundation

    Screenshot of @microsoft/fast-foundation

    `fast-foundation` provides foundational building blocks that can be assembled to create new design tokens and component libraries. It's a lower-level abstraction compared to `fast-components`.


    • 20+ components

Unstyled components

These component libraries bring unstyled components. You bring your own tokens structure and apply your styling on top of the pre-build components.

  • Lion

    Screenshot of Lion

    Fundamental white label web components for building your design system.


    • 25+ components

Fully styled components

These component libraries are fully styled components ready-to-use. Most of them have a sophisticated theming systems with more or less design token granularity. Get the library you like, tune the styling through their theming system and go.

  • @microsoft/fast-components

    Screenshot of @microsoft/fast-components

    `fast-components`, also called "FAST Frame", provides a common set of components that can be customized using FAST design tokens knobs. It's composed with `fast-foundation`.


    • 20+ components
  • Shoelace

    Screenshot of Shoelace

    Shoelace provides a collection of professionally designed, every day UI components built on a framework-agnostic technology.


    • 40+ components
  • Spectrum Web Components

    Screenshot of Spectrum Web Components

    The Spectrum Web Components project is an implementation of Spectrum, Adobe’s design system.


    • 40+ components

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