shadcn_chart 0.0.2

Flutter widgets for rendering shadcn/ui Recharts charts through in-app WebViews.

shadcn_chart

Render shadcn/ui Recharts charts in Flutter with a typed Dart API and bundled HTML renderers. Charts load from package assets — no network access required at runtime.

Platforms: Android, iOS, macOS, Windows, and Web (via flutter_inappwebview).

See the full example in example/lib/main.dart.

Installation

dependencies:
  shadcn_chart: ^0.0.2

Minimal usage

import 'package:flutter/material.dart';
import 'package:shadcn_chart/shadcn_chart.dart';

class TrafficChart extends StatelessWidget {
  const TrafficChart({super.key});

  @override
  Widget build(BuildContext context) {
    return SizedBox(
      height: 320,
      child: ShadcnChartView(
        data: InteractiveLineChartData(
          title: 'Visitors',
          description: 'Last 7 days',
          activeSeriesKey: 'desktop',
          theme: ShadcnChartTheme.system,
          series: const [
            ChartSeries(key: 'desktop', label: 'Desktop', color: '#0f766e'),
            ChartSeries(key: 'mobile', label: 'Mobile', color: '#ea580c'),
          ],
          data: [
            TimeSeriesPoint(
              date: DateTime(2026, 6, 1),
              values: const {'desktop': 120, 'mobile': 98},
            ),
            TimeSeriesPoint(
              date: DateTime(2026, 6, 2),
              values: const {'desktop': 140, 'mobile': 125},
            ),
          ],
        ),
      ),
    );
  }
}

Chart types

Chart	Dart type	Notes
Interactive area	AreaChartData	Time-range selector
Interactive bar	InteractiveBarChartData	Date axis, active series
Multiple bar	MultipleBarChartData	Category axis
Interactive line	InteractiveLineChartData	Date axis, active series
Donut pie	PieDonutChartData	Segments + optional footer
Legend pie	PieLegendChartData	Segments with legend
Stacked radial	RadialStackedChartData	Single values map

Interactive area

AreaChartData(
  title: 'Visitors over time',
  series: series,
  referenceDate: DateTime(2026, 6, 30),
  data: [
    TimeSeriesPoint(
      date: DateTime(2026, 6, 1),
      values: const {'desktop': 178, 'mobile': 200},
    ),
    TimeSeriesPoint(
      date: DateTime(2026, 6, 15),
      values: const {'desktop': 307, 'mobile': 350},
    ),
  ],
)

Interactive bar

InteractiveBarChartData(
  title: 'Visitors by device',
  activeSeriesKey: 'desktop',
  series: series,
  data: [
    TimeSeriesPoint(
      date: DateTime(2026, 6, 1),
      values: const {'desktop': 178, 'mobile': 200},
    ),
    TimeSeriesPoint(
      date: DateTime(2026, 6, 15),
      values: const {'desktop': 307, 'mobile': 350},
    ),
  ],
)

Multiple bar

MultipleBarChartData(
  title: 'Monthly visitors',
  series: series,
  data: [
    CategorySeriesPoint(
      category: 'January',
      values: const {'desktop': 186, 'mobile': 80},
    ),
    CategorySeriesPoint(
      category: 'February',
      values: const {'desktop': 305, 'mobile': 200},
    ),
  ],
)

Interactive line

InteractiveLineChartData(
  title: 'Visitors trend',
  activeSeriesKey: 'mobile',
  series: series,
  data: [
    TimeSeriesPoint(
      date: DateTime(2026, 6, 1),
      values: const {'desktop': 178, 'mobile': 200},
    ),
    TimeSeriesPoint(
      date: DateTime(2026, 6, 15),
      values: const {'desktop': 307, 'mobile': 350},
    ),
  ],
)

Donut pie

PieDonutChartData(
  title: 'Browser share',
  segments: const [
    PieChartSegment(key: 'chrome', label: 'Chrome', value: 275),
    PieChartSegment(key: 'safari', label: 'Safari', value: 200),
  ],
)

Legend pie

PieLegendChartData(
  title: 'Browser legend',
  segments: const [
    PieChartSegment(key: 'chrome', label: 'Chrome', value: 275),
    PieChartSegment(key: 'safari', label: 'Safari', value: 200),
  ],
)

Stacked radial

RadialStackedChartData(
  title: 'Device total',
  centerLabel: 'Visitors',
  series: series,
  values: const {'desktop': 1260, 'mobile': 570},
)

Runtime updates

final controller = ShadcnChartController();

ShadcnChartView(
  controller: controller,
  data: initialChartData,
);

await controller.updateData(nextChartData);
await controller.setTheme(ShadcnChartTheme.dark);

Data types

ChartSeries : Defines a numeric series with key, label, and optional CSS color. The key must match a value in each point.

TimeSeriesPoint : Date-based point for InteractiveLineChartData, InteractiveBarChartData, and AreaChartData.

CategorySeriesPoint : Category-based point for MultipleBarChartData.

TimeRangeOption : Selectable range for AreaChartData; each option has a value, label, and days.

PieChartSegment : Segment for PieDonutChartData and PieLegendChartData, with key, label, value, and optional CSS color.

RadialStackedChartData : Uses a single values map keyed by ChartSeries.key.

All typed chart classes expose toJson(), which is the payload sent to the embedded renderer.

Screenshots

More platform screenshots will be added after the first pub.dev release.

Platform setup

This package uses flutter_inappwebview. Follow that package's platform setup before running on Android, iOS, macOS, Windows, or web.

Common requirements:

• Android: ensure your app supports AndroidX and has a suitable minSdk.
• iOS/macOS: enable embedded views as required by Flutter WebView usage.
• Web: include the flutter_inappwebview web support files when required by your app setup.
• Windows: use a Flutter version supported by flutter_inappwebview.

Chart HTML is loaded from bundled Flutter package assets and does not require network access.

Example

The example/ app demonstrates every chart type:

cd example
flutter pub get
flutter run

Layout

ShadcnChartView renders into the size provided by Flutter. Wrap it in a bounded widget such as SizedBox, AspectRatio, or a constrained layout:

SizedBox(
  height: 320,
  child: ShadcnChartView(data: chartData),
)

The bundled renderers use Recharts ResponsiveContainer and hide document scrolling so the chart feels like part of the Flutter surface instead of a nested web page.

Bundled renderer licenses

The HTML renderers are built from React, Recharts, and shadcn/ui-derived components. They are bundled as package assets so apps do not need network access at runtime. Review the generated NOTICES from your Flutter app for third-party license text.

Maintaining chart assets

The React/Vite source for the renderers lives in renderers/. After changing templates, rebuild the single-file HTML outputs and copy them to assets/charts/ before publishing:

cd renderers
npm install
npm run build:package-assets

Pub health score

Run pana on Linux or CI for an accurate pub.dev score. On Windows, local runs may report false failures:

• dartdoc crash (RangeError in _stripDocImports): known dartdoc 9.0.2+ bug with Windows CRLF Flutter SDK offsets (dart-lang/dartdoc#4180). Workaround: dart pub global run pana --dartdoc-version 9.0.0 .
• Screenshot tools missing (webpinfo, cwebp): install Google libwebp and add its bin folder to PATH, or rely on CI / flutter pub publish (pub.dev provides these tools).

This package declares support for Android, iOS, macOS, Windows, and Web only (see platforms in pubspec.yaml).

Contributing

Contributions, feedback, and bug reports are welcome.

• Issues: Open an issue if something breaks, a chart misbehaves, or you have a feature idea.
• Pull requests: PRs are appreciated for fixes and improvements.
• Support: I'm happy to look into reported issues and ship fixes.

Sponsor

If this package helps your project, consider sponsoring ongoing maintenance:

You can also sponsor directly at github.com/sponsors/balajimalathi.