A database of open source design systems to adapt or use as reference

Adobe

Spectrum Design System

Alibaba

Ant Design System

Apple

Apple Developer Design Guidelines

Atlassian

Atlassian Design System

Blueprint

React-based UI toolkit for the web

Cloudflare

cf-ui Design System

Chakra UI

Simple, modular and accessible component library

Evergreen

React UI Framework for the Web

Firefox

Photon Design System

GitHub

Primer Design System

Gitlab

Pajamas Design System

Google

Material Design System

HubSpot

Canvas Design System

IBM

Carbon Design System

JetBrains

Ring UI

Microsoft

Fluent Design System

Pinterest

Gestalt Design System

Pluralsight

Pluralsight Design System

Priceline

Priceline One Design System

Salesforce

Lightning Design System

Shopify

Polaris Design System

Thumbtack, Inc.

Thumbprint Design System

Twilio Labs

Paste Design System

WeWork

Plasma Design System