- .pulse – by Heartbeat
- Ant Design
- Apple Design Resources
- Atlaskit – by Atlassian
- Audi
- Bolt Design System
- Carbon Design System – by IBM
- Clarity Design System – by VMware
- Comet – by Discovery Education
- Design Systems – by Figma – publication about design systems
- E*TRADE Design – by E*TRADE
- Evergreen – by Segment
- Fundamental Library – by SAP
- GOV.UK Design System – by the U.K. government
- Infor Design – by Infor
- Lexicon – by Liferay
- Lightning Design System – by Salesforce
- Mailchimp Patterns
- Marvel Styleguide – by Marvel
- Material Design – by Google
- Microsoft Fluent UI
- Mozilla Protocol – for Mozilla and Firefox websites
- Oracle Alta UI
- PatternFly – by Red Hat
- Photon Design System – by Mozilla
- Pluralsight Design System
- Primer – by GitHub
- Rizzo – by Lonely Planet
- SendGrid Style Guide
- The Guardian digital design style guide
- U.S. Web Design System – by the U.S.A government
- University of Oxford: Digital style guide
- VTEX Styleguide – by VTEX
- Wikimedia Design Style Guide
- Workday Canvas Design System – by Workday
- Yelp Styleguide
Also see: github.com/bradtraversy/design-resources-for-developers