microsoft/fast

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

9668 stars · 633 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

FAST is Microsoft's collection of tools for building standards-based Web Components, centered on the lightweight @microsoft/fast-element library. It lets developers create reusable, framework-agnostic UI components and design systems built on W3C Web Component standards.

Use cases

• build reusable web components without a framework
• create a custom design system for my web app
• use fluent design components in any frontend framework
• lightweight ui component library with small bundle size
• framework-agnostic components that work with react vue or angular
• accessible web components based on web standards

When to choose

• you want standards-based Web Components usable across any framework or none
• you need a small, tree-shakeable component library (~4.5kb optimized)
• you're building a custom design system with adaptive theming
• you need Fluent design language components

When to avoid

• you want a full application framework with routing and state management
• your team prefers framework-specific component ecosystems like React libraries
• you need a large out-of-the-box component catalog - the main component library lives in the Fluent UI repo

Facets

library · maturity active

ui-components frontend-framework templating css-framework animation web-development frontend web-design accessibility browser cross-platform web-components design-system fluent-ui adaptive-ui component-library w3c-standards tree-shaking web-server typescript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="microsoft/fast")