UI component libraries

Component libraries and primitive sets for React and the wider web. Split by the decision that actually matters: do you want components you own, or a dependency you upgrade.

Do I want unstyled primitives, or components that already look finished?

7 tools

shadcn/ui

Components you copy into your repository and then own outright

FreeMIT

21st.dev

A searchable marketplace of community components with a prompt for each one

Free tierVaries by component, most are MIT

Radix Primitives

Unstyled, accessible behaviour for the components that are hard to get right

FreeMIT

Base UI

Headless primitives from the people behind MUI and Radix

FreeMIT

React Aria

Adobe's accessibility and interaction layer, hooks first

FreeApache-2.0

Ark UI

The same headless components across React, Vue, Svelte and Solid

FreeMIT

HeroUI

Styled, finished components for when you do not want to design them

FreeMIT