PanelUI

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PanelUI is an open-source React Native UI component library for Expo apps, styled with Tailwind CSS v4 and animated with Reanimated 4. 141 accessible, typed component modules — buttons, inputs, forms, dialogs, bottom sheets, charts, calendars, maps and a set of AI chat components — in one coherent visual language, with light and dark themes out of the box.

Pure TypeScript with no native modules, so it runs in Expo Go with no prebuild, no Xcode and no Android Studio.

New: PanelUI for the web. panelui-web is a collection of forty components for React on the web, in the same visual language and drawn in your project's own theme: a prompt for an AI assistant, a board of cards you drag, a canvas of nodes and edges, a globe, KPI cards and more.

Why PanelUI

• ⚡ Fast styling — Uniwind brings Tailwind v4 to React Native with no Babel transform, around 2.4–3× faster than the alternatives.
• 🧵 UI-thread animations — press feedback, switches, sheets, dialogs and tabs all run on the UI thread with Reanimated 4. No JS-thread jank.
• 🎨 Semantic design tokens — one colour system (background, primary, muted, destructive, …) across light and dark, precomputed to static values for native.
• 🌗 Native dark mode — theme switching is applied natively, without re-rendering your tree.
• ♿ Accessible by default — every interactive component wires up accessibilityRole and mirrors its state.
• 🧩 Compound APIs — Card.Header, Dialog.Content, Table.Row compose the way the markup reads.
• 📦 Typed, tree-shakeable, zero native code — works in Expo Go, ships full TypeScript types.

Getting started

Needs Node 20+. A new app, with everything below already done:

npx create-panelui-app@latest

Adding it to an app you already have, on Expo SDK 57+:

npx expo install panelui-native
npx expo install uniwind tailwindcss react-native-reanimated react-native-worklets react-native-gesture-handler react-native-safe-area-context react-native-svg @react-native-masked-view/masked-view expo-linear-gradient

Then three files — a Metro config, a CSS entry and the provider. The installation guide walks through each one and lists a fix for every error people hit.

Or copy the source

panelui-cli copies a component's source into your project, to own and edit:

npx panelui-cli@latest init
npx panelui-cli@latest add button

Both approaches are supported and you can mix them. See the CLI docs.

Usage

import { Button, Card, Dialog, Input } from 'panelui-native';

function CreateProject() {
  return (
    <Card>
      <Card.Header>
        <Card.Title>Create project</Card.Title>
        <Card.Description>Deploy your new project in one click.</Card.Description>
      </Card.Header>
      <Card.Content className="gap-4">
        <Input label="Name" placeholder="My project" />
      </Card.Content>
      <Card.Footer>
        <Dialog>
          <Dialog.Trigger>
            <Button>Deploy</Button>
          </Dialog.Trigger>
          <Dialog.Content>
            <Dialog.Title>Are you sure?</Dialog.Title>
            <Dialog.Description>This will start a deployment.</Dialog.Description>
            <Dialog.Footer>
              <Dialog.Close>
                <Button variant="ghost" size="sm">Cancel</Button>
              </Dialog.Close>
              <Dialog.Close>
                <Button size="sm">Confirm</Button>
              </Dialog.Close>
            </Dialog.Footer>
          </Dialog.Content>
        </Dialog>
      </Card.Footer>
    </Card>
  );
}

Every component takes className, so anything can be restyled with Tailwind classes:

<Button className="w-full rounded-full" labelClassName="uppercase">
  Continue
</Button>

Components

141 component modules, documented with live examples and full props tables at panelui.dev/docs.

• Layout & content — Card, Frame, PageHeader, Surface, Item, GridItem, Separator, Splitter, Typography, SplitView, Table, Timeline, Steps, Accordion, Collapsible, Carousel, EmptyState, Skeleton
• Forms & inputs — Form, Field, Input, Textarea, InputGroup, NumberInput, OtpInput, SearchBar, Select, Combobox, TagInput, Checkbox, RadioGroup, Switch, Slider, Rating, Signature, ColorPicker, DatePicker, TimePicker, DateTimePicker, Calendar, Label, MarkdownEditor, Questionnaire
• Actions & navigation — Button, ButtonGroup, ToggleButton, Fab, Menu, ContextMenu, Swipe, StackCard, SelectionMode, Sortable, Tabs, Breadcrumb, Pagination, SectionRail, Panelside, Tree, Chip, Badge
• Overlays & feedback — Dialog, BottomSheet, Drawer, Popover, Tooltip, Toast, Alert, Tour, Progress, Meter, Spinner, Loader
• Data visualisation — Plot, LineChart, LiveLineChart, AreaChart, MirrorAreaChart, BarChart, WaterfallChart, PyramidChart, ScatterChart, BubbleChart, BumpChart, CandlestickChart, PieChart, PolarAreaChart, FunnelChart, TreemapChart, SankeyChart, RingChart, RadarChart, HeatmapChart, HexChart, Kpi, Leaderboard, Countdown, Map, Marker, Flow, QRCode
• AI components — Message, MessageScroller, Response, Reasoning, Plan, Task, Sources, CodeBlock, Shimmer, ThinkingOrb, Soundwave
• Social — Post, ImageViewer, Compare, Avatar, Attachment
• Scroll & motion — ScrollHeader, ScrollFade, ScrollText, ScrollCanvas, TextAnimation, Marquee, Direction

Plus the primitives: PanelUIProvider, Portal, AnimatedPressable, useTheme, useThemeMode, useToast, cn.

PanelUI for the web

panelui-web is a separate collection for React on the web: Next.js, Vite, React Router, or anything else that runs React 18 or newer with Tailwind CSS v4. It is not a port of the components above. It is forty of its own, styled with Tailwind on the tokens a shadcn project already defines, so they take your colours and radius in light and dark.

Copy a component's source into your project with the shadcn CLI. It lands in components/panelui/ and is yours to edit:

npx shadcn@latest add https://panelui.dev/r/web/lane-board.json

Or install the package, and let Tailwind see the classes it uses:

npm install panelui-web

/* app/globals.css */
@import "tailwindcss";
@source "../node_modules/panelui-web/dist";

import { RollingNumber } from 'panelui-web/rolling-number';

<RollingNumber value={298} className="text-6xl font-bold" />

• Lane Board — lanes of cards, dragged with a pointer or carried with the keyboard
• Flow — a canvas of nodes joined by edges, to pan, zoom and rearrange
• Planet — the world as dots on a globe you can turn, with markers pinned to it
• Day Grid, Bar Picker, Range Meter, KPI, Rolling Number — figures, to read and to pick from
• Sheet — a panel that rises from any edge, floating clear of it, and stacks over another
• Card, Frame — the surfaces the rest of a page sits on
• Command Dock, Feedback, Tilt Card — asking, answering and showing

KPI, Flow, Card and Frame have the same parts and props as the app library's, so a screen written for one reads the same in the other. Every component runs live in the docs, with its source under it, at panelui.dev/docs/web.

Theming

Six themes ship in theme.css — light, dark, moon, moon-dark, grass and grass-dark. Each family sets its own radius scale as well as its own palette, so switching one changes the shape of the UI too.

const { theme, setTheme } = useTheme();
setTheme('moon-dark');
setTheme('system'); // follow the device

const { family, mode, setFamily, toggleMode } = useThemeMode();
toggleMode();       // dark ↔ light, staying in the current brand
setFamily('grass'); // switch family, staying in the current mode

Tokens are CSS variables and can be overridden in your own global.css. See Colors for the token reference and the @variant shape overrides have to use, and Fonts for pointing the library at a typeface of your own.

Coding agents

An agent writing React Native in your project has no idea PanelUI is there. It writes a styled View where there is a Card, invents a prop Button does not have, and hardcodes #171717 into a screen that has six themes.

The skill tells it. In Claude Code it installs as a plugin, and brings the MCP server with it:

/plugin marketplace add panel-ui/PanelUI
/plugin install panelui

For any other agent — Cursor, Copilot, Windsurf, Codex — the same folder installs with the skills CLI:

npx skills add panel-ui/PanelUI

It carries an index of every component and a file each with the anatomy, every prop with its type and default, the variants and the parts, generated from the library's own TypeScript. Alongside those: the install steps and every reason className silently does nothing, worked screens for the compositions that come up (settings, form, chat, filters, charts, search), the hooks and primitives, and the rules that are not negotiable. It reads from disk, so an agent with no network tool is not left guessing.

The skill activates on its own once a project has panelui-native in its dependencies or a panelui.json beside it. Full details, and the URLs everything is served from, at panelui.dev/docs/skills.

The web collection has a skill of its own, generated the same way from its source:

npx skills add panel-ui/PanelUI --skill panelui-web

Its components are shadcn registry items, so the shadcn MCP server can search and add them once the registry is named in components.json. Both are covered at panelui.dev/docs/web/skills and panelui.dev/docs/web/mcp.

Example app

An Expo Router showcase with a live demo for every component and a theme picker — used to smoke-test the whole library in all six themes before a release.

git clone https://github.com/panel-ui/PanelUI.git
cd PanelUI
npm install
npx expo prebuild --clean   # in apps/example, once
npm run example

The showcase needs a development build; it does not run in Expo Go. One component is the reason — Map, whose renderer is native code that Expo Go's prebuilt binary does not contain. Opening it in Expo Go closes the app with nothing in the terminal, which looks like a crash in the library and is not one. See apps/example/README.md.

The library itself is a different matter: it ships no native code and runs in Expo Go.

Contributing

Contributions are welcome. The library lives in packages/panelui, the showcase in apps/example and the documentation site in apps/docs.

npm install         # install workspace deps
npm test            # run every repository contract test
npm run typecheck   # typecheck all workspaces
npm run build       # build the library

Read CONTRIBUTING.md before opening a pull request, and please follow the Code of Conduct.

Community

• Report a bug or request a component
• Ask a question in Discussions
• Star the repo if PanelUI is useful to you — it is how other people find it

Contributors

Thank you to everyone who has shipped something here. If you would like to join them, CONTRIBUTING.md is the place to start.

Issue reporters

A clear bug report is how most fixes here start. Thank you to everyone who took the time to open one.

License

MIT © Khalid Abdi