Lithos UI
A free, neo-brutalist React UI kit engineered with absolute structural integrity
Transform Your Design System with Uncompromising Quality
Lithos UI is the React component library for developers who refuse to compromise. Built on neo-brutalist principles, this free kit delivers industrial-strength UI components with obsessive attention to structural integrity.
Whether you're prototyping a startup or scaling an enterprise platform, Lithos UI gives you battle-tested components that work exactly as intended—no surprises, no workarounds, no technical debt.
What Sets It Apart
Zero-Gap Architecture — Pixel-perfect alignment and spacing with no hidden quirks or rendering surprises
YIQ Contrast Logic — Intelligent color contrast that ensures accessibility without sacrificing aesthetics
Production-Ready Components — Every element engineered for real-world performance and reliability
Free Forever — No licensing fees, no vendor lock-in, just pure utility
Developer-First Design — Intuitive APIs and comprehensive documentation that respects your time
