If you're missing one, please make a pull request, or open an issue.

• Components: Contains coded patterns and examples.
• Voice & Tone: Provides guidance on how language should be used.
• Designers Kit: Includes a Sketch/Photoshop/Figma/etc. file for designers.
• Source code: Publically viewable source code

*Projects marked as open source may not always be open to use. Always check the license of these projects before using them.

Although 'design systems', 'ui libraries', and 'pattern libraries' are different things, they are often used interchangeably. This list contains all three.

Thanks to alexpate for inspiration and a fantastic list of awesome design systems.