Icons

SumUp's open source Circuit UI, a React component library and design system for the web, documented in Storybook with tokens, icons, and forms.

Solar, the Sunrise design system that gives every digital team at the Swiss telecom reusable web components, foundations, page sections, and accessibility guidance.

Thumbtack's Thumbprint design system, assets and guidelines for consistent experiences across web, iOS, and Android, including tokens, components, atomic CSS, and content design.

Paste, the open source design system created at Twilio, with accessible React components, tokens, icons, patterns, and page templates for consistent product experiences.

The U.S. federal government's design system for building accessible, mobile-friendly websites, with components, design tokens, patterns, and implementation guidance.

Vercel's Geist design system for consistent web experiences, documenting brand assets, a high-contrast color system, grid, icons, and React components.

Terra, the VTS design system focused on commercial real estate software, built to help teams innovate quickly across all VTS products.

The Washington Post Design System, a growing library of design tokens and interactive components purpose-built for washingtonpost.com reader experiences.

Codex, the Wikimedia design system, with a style guide, design tokens, Vue 3 components, icons, and composables for building Wikipedia and MediaWiki interfaces.

Workday's open source Canvas design system, reusable UI elements, tokens, icons, and guidelines delivered through the Canvas Kit React libraries.

Radix, maintained by WorkOS, offers free, open source React themes, unstyled primitives, icons, and color scales for building high-quality, accessible interfaces.