Design, build, and create with GitHub’s design systemPrimer was created for GitHub by GitHub. We love it so much, we chose to open-source it to allow the community to design and build their own projects with Primer.
Everything in one system
Check out our most popular tools to use in your next project
Utility-centric and BEM-style components to give you the building blocks for any web project.
Presentational UI components with encapsulated styles and constraint-based theme props.
Build component-driven UI in Rails with ViewComponents.
Principles, standards, and usage guidelines for designing GitHub interfaces.
Design layouts, flows, wireframes, and make prototypes with Primer components in Figma.
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