
U.S. Web Design System
Web Design System: official U.S. government framework for consistent, accessible public digital services.
Product Overview
The U.S. Web Design System (USWDS) is the official open-source design system from the U.S. federal government (managed by GSA), providing reusable components, patterns, and guidelines to build consistent, accessible, and performant digital experiences for public-facing government websites and services. It ensures compliance with Section 508 accessibility standards and federal branding, helping agencies deliver user-centered, trustworthy interfaces efficiently. Component Library: Reusable elements like buttons, forms, alerts, accordions, grids, and navigation with variants. Design Tokens: Colors (federal palette), typography, spacing, icons, and utilities for consistency. Accessibility: Full Section 508/WCAG 2.1 AA compliance with ARIA support. Tools: Figma kit for prototyping; code packages for HTML/CSS and React.
Best For
Teams building scalable, consistent digital products.
Key Features
- Component Library: Reusable elements like buttons, forms, alerts, accordions, grids, and navigation with variants.
- Design Tokens: Colors (federal palette), typography, spacing, icons, and utilities for consistency.
- Accessibility: Full Section 508/WCAG 2.1 AA compliance with ARIA support.
- Tools: Figma kit for prototyping; code packages for HTML/CSS and React.
Pros
- +Open source
- +Extensive icon library
- +Color palette generation
- +Export to CSS/design tools
Cons
- -Adoption requires team alignment
- -Customization can be complex
/// SPECS
- Pricing:Free
- Platform:Browser

Primer Design System
GitHub's open-source design system for consistent, accessible web interfaces.

Radius Design System
Rangle's meta-framework accelerating custom design system creation with tools and kits.

Salt Design System
J.P. Morgan's open-source framework for accessible, customizable financial interfaces.

Slack Block Kit
modular UI framework for building rich, interactive messages and apps in Slack.

SmartHR UI
open-source React component library for consistent, accessible HR platform interfaces.

UNDP Design System
official U.S. government framework for consistent, accessible public digital services.

VKUI
VK's open-source React library for consistent, accessible interfaces in VK apps and services.

VTEX Design System
open-source framework for consistent, accessible e-commerce interfaces.

Vaadin Design System
open-source framework for consistent, accessible enterprise web apps with web components.

Vibe Design System
monday.com's open-source design system for consistent, accessible work management interfaces.