🆚 Carbon Design System vs. USWDS

Carbon is IBM's open-source design system for products and digital experiences that provides a shared foundation for building consistent user interfaces across applications.

It includes reusable UI components and patterns, design tools such as Figma kits, human interface guidelines, and resources aligned with the IBM Design Language, and offers over 50 production-ready components with a structured grid and accessibility support.

The U.S. Web Design System (USWDS) is an open-source design system developed by the United States government to help federal agencies build fast, accessible, and mobile-friendly websites.

It provides a library of reusable UI components, design patterns, and production-ready code with built-in compliance for standards such as Section 508 and the 21st Century IDEA, along with utilities, templates, and standardized design variables for color, typography, and spacing.

Popularity

Determined by the number of sites using each technology.

• 🥈 Second most popular in the United States in the Design Systems category.
• 🔥 17th most popular in the United States in the UI Frameworks category.

Top sites

Top-ranked sites that use these technologies.

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• Carbon Design System technology profile
• IBM company profile

• USWDS technology profile
• GSA company profile