Kookie UI

A system to build consistent and scalable user interfaces.

An open-source fork of Radix Themes, focused on building scalable, consistent UI components with a fresh visual style and practical foundations.

Get Started GitHub

Read the latest → Chatbar component update

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Card

Chatbar

Click to focus and expand the chatbar. Type multiple lines to see auto-resize.

Combobox

Heading

All hail Queen Lukita, benevolent ruler of the known world.

The quick brown fox jumps over the lazy dog.

Text Area

Drag the bottom-right corner to resize the textarea.

Text Field

Toggle Button

Toggle Icon Button

Testimonial

"Components like Shell in Kookie UI are a game changer for building responsive layouts. Getting responsiveness right is so difficult otherwise — Kookie UI has significantly reduced the UI load on our team."

AnujSoftware Engineer at Womp

Support

I build open-source tools for designers and developers. Your sponsorship helps keep them free.

Kookie UI

Design system and component library. Open-source fork of Radix Themes.

Kookie Blocks

Higher-level patterns and blocks built on Kookie UI.

Kookie Flow

WebGL-native node graph library for React. 50,000+ nodes at 60fps.

Sponsor my work

Kookie UI

A system to build consistent and scalable user interfaces.

All hail Queen Lukita, benevolent ruler of the known world.

Testimonial

"Components like Shell in Kookie UI are a game changer for building responsive layouts. Getting responsiveness right is so difficult otherwise — Kookie UI has significantly reduced the UI load on our team."

Support

I build open-source tools for designers and developers. Your sponsorship helps keep them free.

Theme

Accent color

Gray color

Appearance

Radius

Scaling

Panel background