Fluent UI React

Overview

Fluent UI React is Microsoft's official design system implementation (Fluent 2), powering Microsoft 365, Teams, and Azure portals. Built for enterprise reliability, high density, and comprehensive internationalization.

Key Features

• Fluent 2 Design Tokens: Native integration with Microsoft's cross-platform design token architecture.
• Enterprise Accessibility: Rigorous compliance with WCAG AAA and Section 508 accessibility guidelines.
• Griffel CSS-in-JS Engine: Zero-runtime ahead-of-time CSS extraction for optimal performance.
• High-Density Data Components: World-class data tables, trees, and navigation bars.

Installation & Quick Start

npm install @fluentui/react-components

import { FluentProvider, webLightTheme, Button } from '@fluentui/react-components';

export default function App() {
  return (
    <FluentProvider theme={webLightTheme}>
      <Button appearance="primary">Enterprise Action</Button>
    </FluentProvider>
  );
}

Why Choose Fluent UI?

• Best for: Enterprise productivity suites, Microsoft ecosystem integrations, and government/regulated portals.
• Not suitable for: Playful consumer landing pages or unbranded lightweight web apps.