Once UI

The product is an open-source design system for Next.js that provides semantic layout primitives and 100+ pre-styled components to reduce boilerplate code and manage themes and styles in a single file. It is for developers and designers in business teams building web applications who need reusable UI infrastructure. It is delivered as an open-source core library with deployment-ready templates and copy-paste blocks and documentation.

Key features

• Semantic layouts with Row, Column and Grid
• 100+ pre-styled open-source components
• Manage themes and styles in single file
• Human-readable, machine-writable syntax
• Design tokens theming in single file
• Copy-paste blocks for custom solutions
• Deployment-ready app templates
• Next.js exclusive design system