muibase-ui
Unstyled UI components for building accessible web apps and design systems. From the creators of Radix, Floating UI, and Material UI.
TL;DR · 30-second scan
base-ui (TypeScript) — Unstyled UI components for building accessible web apps and design systems. From the creators of Radix, Floating UI, and Material UI.
You are starting a new design system and want the most actively maintained primitive layer right now.
UI Components
New library from the MUI team in 2026, similar philosophy to Radix Primitives — unstyled accessible components. ~3.7M weekly downloads in early 2026 and moving fast. Worth watching if you hit Radix limitations on complex components like Combobox or multi-select.
You are starting a new design system and want the most actively maintained primitive layer right now.
You are already deep in Radix or shadcn — migration cost is real, no urgency to switch.
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