All design systems

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Design system for space and satellite-operations software used by the US Space Force. Stencil web components with React and Angular wrappers; audited against MIL-STD-1472H.

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Skyscanner's design system with web (React), iOS (SwiftUI/UIKit) and Android (Views and Jetpack Compose) implementations, Apache 2.0. Tokens are synced from Figma variables into DTCG JSON with a `token-sync` CLI.

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Palantir's React UI toolkit, optimized for complex, data-dense desktop web applications (not mobile-first). Licensed under an Apache 2.0-based Blueprint License that asks you not to pass derivatives off as Palantir products.

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SEEK Group's themeable React design system, built with vanilla-extract and themes for SEEK, Jobstreet and Jobsdb brands. Known for Playroom, a design-in-code prototyping tool.

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Esri's framework-agnostic web components design system for ArcGIS and map-focused apps. 1.0 shipped in January 2023; strong RTL and numbering-system localization (including Arabic numerals).

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AWS's React design system, created in 2016 for the AWS Management Console and open sourced under Apache 2.0 in July 2022. Strong for dashboards, consoles and data-heavy business apps. Includes Gen AI patterns.

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Open source Section 508-compliant system built on USWDS, with child systems for Healthcare.gov, Medicare.gov and CMS.gov. Tokens sync both ways between Figma variables and the repo.

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The French State's design system (since 2020), mandatory for all State websites and mobile apps since July 2023. Code is MIT-licensed, but **use is restricted to French State websites**: local authorities and private actors may not use it, because it carries the State's identity.

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Contentful's open source design system for building and extending Contentful apps. v5 refreshed the look and switched to Phosphor Icons; the Figma libraries were updated to v6.

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HPE's design system, built on Grommet (React) with the `grommet-theme-hpe` theme and `hpe-design-tokens`. Theme v8 (October 2025) introduced "Landmark", HPE's refreshed visual language, switching to the Graphik typeface and new HPE icons.

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InstUI, the open source (MIT) React design system behind Canvas LMS, used by millions of learners. 100+ packages, 4 built-in themes including high contrast, WCAG 2.1 AA, RTL support.

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ING's open source, white-label, framework-agnostic web components (WCAG 2.2 AA target). ING's own branded library (ing-web) is a thin layer on top. Ideal as an accessible base for building your own branded system.

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A community-driven system where Dutch government organizations co-build shared, accessible components, then apply their own brand through design tokens. Licensed EUPL 1.2. Municipalities (Utrecht, Amsterdam, The Hague) and agencies (Logius, MinBZK) run their own themes on the shared architecture.

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Orange's fully open source design system for web, Android, iOS and TV: around 100 components and 1,700+ "Solaris" icons. Boosted is the Orange-branded, accessibility-enhanced Bootstrap distribution. A new Orange Unified Design System (OUDS) is in development.

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Singapore's open source government design system, aligned with the Digital Service Standards. SGDS v3 was rebuilt with a token architecture, advanced theming for agency sub-brands, and tighter Figma-code alignment.

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VA.gov's front-end framework, built on USWDS, with a web component library and a CSS library (tokens in CSS, SCSS, JSON). Very active: frequent releases (v54.x in early 2026).