M3 Web Webcomponents

Material Design 3 — Web Components (@material/web)

Overview

Google's official M3 web component library. Framework-agnostic — works with any framework that supports Custom Elements. Built on Lit for small bundle size and interoperability.

Keywords: Material Design 3, M3, web components, @material/web, Lit, custom elements, material-web, Google official

When to Use

• When you want Google's official M3 implementation
• Need cross-framework components
• Want standardized web components
• Projects that value stability over cutting-edge features

Status: Maintenance mode — stable but not receiving major new features.

Install

npm install @material/web

Setup

Import components individually for tree-shaking:

<script type="module">
  import '@material/web/button/filled-button.js';
  import '@material/web/button/outlined-button.js';
  import '@material/web/button/text-button.js';
  import '@material/web/textfield/outlined-text-field.js';
  import '@material/web/textfield/filled-text-field.js';
  import '@material/web/checkbox/checkbox.js';
  import '@material/web/radio/radio.js';
  import '@material/web/switch/switch.js';
  import '@material/web/icon/icon.js';
  import '@material/web/fab/fab.js';
  import '@material/web/dialog/dialog.js';
  import '@material/web/menu/menu.js';
  import '@material/web/tabs/tabs.js';
  import '@material/web/tabs/primary-tab.js';
  import '@material/web/chips/chip-set.js';
  import '@material/web/chips/filter-chip.js';
  import '@material/web/progress/linear-progress.js';
  import '@material/web/progress/circular-progress.js';
  import '@material/web/select/outlined-select.js';
  import '@material/web/slider/slider.js';
  import '@material/web/list/list.js';
  import '@material/web/list/list-item.js';
  import '@material/web/navigationbar/navigation-bar.js';
  import '@material/web/navigationtab/navigation-tab.js';
</script>

Theming

Theme via CSS custom properties:

:root {
  /* Color tokens */
  --md-sys-color-primary: #6750A4;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #EADDFF;
  --md-sys-color-secondary: #625B71;
  --md-sys-color-tertiary: #7D5260;
  --md-sys-color-error: #B3261E;
  --md-sys-color-surface: #FEF7FF;
  --md-sys-color-on-surface: #1D1B20;

  /* Typography tokens */
  --md-ref-typeface-brand: 'Roboto';
  --md-ref-typeface-plain: 'Roboto';

  /* Shape tokens */
  --md-sys-shape-corner-full: 9999px;
  --md-sys-shape-corner-large: 16px;
  --md-sys-shape-corner-medium: 12px;
  --md-sys-shape-corner-small: 8px;
}

Component Examples

Buttons

<md-filled-button>Filled</md-filled-button>
<md-outlined-button>Outlined</md-outlined-button>
<md-text-button>Text</md-text-button>
<md-filled-tonal-button>Tonal</md-filled-tonal-button>
<md-elevated-button>Elevated</md-elevated-button>

Text Fields

<md-outlined-text-field label="Email" type="email"></md-outlined-text-field>
<md-filled-text-field label="Name"></md-filled-text-field>

Navigation

<md-navigation-bar>
  <md-navigation-tab label="Home">
    <md-icon slot="active-icon">home</md-icon>
    <md-icon slot="inactive-icon">home</md-icon>
  </md-navigation-tab>
  <md-navigation-tab label="Search">
    <md-icon slot="active-icon">search</md-icon>
    <md-icon slot="inactive-icon">search</md-icon>
  </md-navigation-tab>
</md-navigation-bar>

Other Components

<md-checkbox></md-checkbox>
<md-switch></md-switch>
<md-slider></md-slider>

<md-fab label="Add">
  <md-icon slot="icon">add</md-icon>
</md-fab>

<md-linear-progress indeterminate></md-linear-progress>
<md-circular-progress indeterminate></md-circular-progress>

<md-chip-set>
  <md-filter-chip label="Option 1"></md-filter-chip>
  <md-filter-chip label="Option 2"></md-filter-chip>
</md-chip-set>

Using with Other Frameworks

@material/web can be used inside React, Vue, Svelte, and Angular since web components work in any framework. See the framework-specific M3 skills for details on integration patterns.

Checklist

• Import only the components you need (tree-shaking)
• Apply M3 color tokens via CSS custom properties
• Configure typography typeface tokens
• Handle custom element events appropriately for your framework
• Test theming in both light and dark modes
• Ensure proper font loading (Roboto, Material Symbols)

Resources

• m3-theme.css — Complete @material/web theme template (color, typography, shape, elevation, state, motion tokens) included in this skill's directory. Copy into your project and customize.
• material-theme-builder skill — Generate a custom token set from any source color.
• M3 for Web: https://m3.material.io/develop/web
• Documentation: https://material-web.dev/
• Quick start: https://material-web.dev/about/quick-start/
• Theming: https://material-web.dev/theming/material-theming/
• SCSS color API: https://github.com/material-components/material-web/blob/main/color/_color.scss
• Token reference: https://github.com/material-components/material-web/tree/main/tokens
• GitHub: https://github.com/material-components/material-web
• npm: https://www.npmjs.com/package/@material/web

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