Adobe Spectrum
Spectrum, Adobe's design system
Alibaba Ant Design
Ant Design - The world's second most popular React UI framework
Apple Developer Design Guidelines
Design - Apple Developer
Atlassian
Atlassian Design
Audi user interfaces
UI Introduction
BBC GEL
BBC GEL | Homepage
Cloudflare cf-ui
cf-ui styleguide
Duolingo
Brand Guidelines - Duolingo
eBay Skin
eBay Skin
Financial Times Origami
Origami
Github Primer
GitHub Style Guide
GitLab
Pajamas
Google Material Design
Material Design
Heroku Purple3
Heroku Design
Hewlett Packard grommet
Grommet
IBM Design Language
IBM Design Language
IBM Carbon
Carbon Design System
IBM Northstar
JetBrains Ring UI
Storybook
Line
Lonely Planet Rizzo
Lonely Planet Travel Guides and Travel Information
@mail.ru
Дизайн в Mail.ru Group
Mailchimp Patterns
Color
Mailchimp Content Styleguide
Welcome to the Mailchimp Content Style Guide | Mailchimp Content Style Guide
Meetup Swarm
Swarm Design System
Microsoft Fluent
Microsoft Design
Microsoft Fast Design
FAST
Mixpanel
Mixpanel Design System
MongoDB Design System
LeafyGreen - MongoDB Design System
Morningstar Design System
Morningstar Design System
Mozilla Protocol
Mozilla Protocol
Mozilla Firefox Photon
Photon Design System
NASA Web Design System
NASA Web Design System: A design system for NASA
Oracle Alta UI
Oracle Alta UI web site
Pinterest Gestalt
QQ
qdesign
Stackoverflow Stacks
Stacks
Salesforce Lightning
Lightning Design System
SAP Fundamental Library
Homepage - Fundamental Styles
SAP Fiori
SAP Fiori
SAP OpenUI
GitHub - SAP/openui5: OpenUI5 lets you build enterprise-ready web applications, responsive to all devices, running on almost any browser of your choice.
Starbucks Style Guide
Starbucks React Pattern Library
Shopify Polaris
Shopify Polaris
Uber Base
Base Web React UI Framework
Ubuntu Vanilla framework
Vanilla documentation
Vercel
Vercel - Vercel Design
Vmware Clarity
Clarity Design System
Wikipedia Wikimedia UI
Wikimedia Design Style Guide (WikimediaUI)
Yelp
Styleguide
Zendesk Garden
Zendesk Garden