# imaNNeo/fl_chart

FL Chart is a highly customizable Flutter chart library that supports Line Chart, Bar Chart, Pie Chart, Scatter Chart, Radar Chart and Candlestick Chart.

Repository: https://github.com/imaNNeo/fl_chart
Canonical: https://ross.abutalabs.com/products/fl_chart
Homepage: https://flchart.dev
Language: Dart
License: MIT
License Family: permissive
Topics: flutter-widget, flutter, chart, charts, fl-chart, graph, linechart, barchart, piechart, datasets, radar-chart, scatter-chart, scatter-plot, radar-graphs, hacktoberfest, candlestick, candlestick-chart, candlesticks
Last push: 2026-07-24T23:02:03+00:00

## Health v2 (maintenance only)
Score: 88/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 94, release rhythm 74, longevity 100
- inputs: {"age_days": 2670, "days_push": 40, "days_rel": 173, "gap_med": 23, "n_releases_24m": 10}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 7574, forks 1964 (observed 2026-08-28T04:10:01.711630+00:00)

## What it is
FL Chart is a free, open-source, highly customizable charting library for Flutter applications. It provides widgets for line, bar, pie, scatter, radar, and candlestick charts that run on every platform Flutter supports.

## Use cases
- draw line charts in a flutter app
- render pie charts with custom styling
- show bar charts in a mobile dashboard
- plot scatter charts in flutter
- display radar charts for comparing datasets
- visualize candlestick financial data in flutter
- add interactive charts to a flutter web app

## When to choose
- you are building a Flutter app and need customizable charts
- you need chart widgets that work across mobile, web, and desktop via Flutter
- you want a free MIT-licensed charting library with active maintenance

## When to avoid
- you are not using Flutter/Dart
- you need 3D or highly specialized scientific plotting beyond the supported chart types
- you need server-side chart image generation rather than in-app widgets

## Facets
- artifact type: library
- maturity: stable
- function: data-visualization, charts, ui-components
- domain: data-visualization, mobile-development, cross-platform, frontend
- platform: cross-platform
- tags: flutter, dart, charting, line-chart, bar-chart, pie-chart, scatter-chart, radar-chart, candlestick-chart, widgets, mobile, web-server, desktop

## Member repositories
- imaNNeo/fl_chart (main) score 88

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:01.711630+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:36:55.482246+00:00, confidence not recorded.
  - readme: https://github.com/imaNNeo/fl_chart (fetched 2026-08-28T04:10:01.711630+00:00, sha 044412bbe32f)
  - homepage: https://flchart.dev (fetched 2026-08-29T08:32:18.440609+00:00, sha de19cf301437)
  - site_page: https://flchart.dev/about (fetched 2026-08-29T08:32:18.443065+00:00, sha 59e7cef45000)
- Data as of 2026-08-30T08:39:29.467469+00:00.