HeroUI

Active

The UI framework for AI agents and developers to build beautiful apps.

Y Combinator S24

What it does

HeroUI makes it simple for AI agents and developers to build beautiful, accessible, production-ready interfaces for web and mobile. In the AI age, design matters more than ever. Every micro animation, color, and interaction shapes how users experience your product. HeroUI makes that level of creativity and craft simple

Its site says now · captured 2026-08-23

HeroUI v3 (Previously NextUI) - Beautiful by default, customizable by design.

Beautiful, accessible React UI components built on React Aria and Tailwind CSS v4. The modern alternative to MUI, Chakra UI, and shadcn/ui for building production-ready applications.

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