NOW AVAILABLEProduction-ready headless components
Accessible
, headless
& composable
React components that just work.
An open-source React UI library delivering unstyled, behavior-first primitives. Zero styling opinions, full accessibility built-in. Install via npm and build your design system.
Start BuildingBuild
Smarter
, Not HarderShip faster with less code
Stop reinventing the wheel. Spar Headless handles state management, accessibility, and keyboard interactions out of the box—so you can focus on what makes your product unique.
Your design, zero compromises
No more fighting with opinionated styles. Our headless components give you complete design freedom while handling the complex behavior and accessibility under the hood.
WAI-ARIA Compliant
Built on WAI-ARIA standards from day one. Spar ensures semantic correctness and proper behavior for assistive technologies.
Full Keyboard Navigation
Complete keyboard support with tab, arrow keys, enter/escape—all interactions work exactly as users expect, out of the box.
Intelligent Focus Management
Focus management that works predictably by default, with full customization options for complex UI flows and modal interactions.
Screen Reader Optimized
Rigorously tested with NVDA, VoiceOver, and JAWS to prevent common accessibility pitfalls and ensure consistent behavior.
AI-POWERED
Copilot-Ready
Development
Pre-configured GitHub Copilot instructions and prompts in .github folder ensure consistent, team-aligned AI assistance throughout your development workflow.
STYLING
Effortless
CustomizationDesigned for modern design systems. Bring your own styles, tokens, or CSS framework—Spar stays out of your way.
Ready to build with
headless Spar?
