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.

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Summary Information

Updated 16 minutes ago
Added to GitGenius on September 8th, 2026
Created on May 12th, 2019
Open Issues & Pull Requests: 408 (+0)
GitHub issues: Enabled
Number of forks: 1,966
Total Stargazers: 7,577 (+0)
Total Subscribers: 59 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 8.9 days
Mean response time: 78.9 days
90th percentile: 187.7 days
Tracked items: 200

How this project is maintained

Around half of the issues opened in the past year never receive a reply. 100% of open issues come from outside the core team, so the backlog reflects real-world use rather than internal planning. Work labelled "question" is answered fastest, typically in about 6 days, while "Bar Chart" waits about 7 weeks. Only 4% of issues opened in the past year have been closed. Three people close 78% of everything that gets resolved.

Charts & Analytics

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Issue Activity (beta)

Open issues: 162
New in 7 days: 0
Closed in 7 days: 0
Avg open age: 760 days
Stale 30+ days: 157
Stale 90+ days: 146

Recent activity

Opened in 7 days: 0
Closed in 7 days: 0
Comments in 7 days: 0
Events in 7 days: 0

Top labels

  • enhancement (63)
  • Fundamental (37)
  • Line Chart (31)
  • bug (21)
  • question (20)
  • Bar Chart (16)
  • Pie Chart (15)
  • Needs Reproducible Code (12)

Most active issues this week

Detailed Description

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

The library addresses the need for flexible data visualization in Flutter applications by providing native chart widgets that can be extensively customized. Each chart type is built as a Flutter widget, allowing developers to embed charts directly into their app layouts and control appearance through configuration objects rather than external rendering engines.

FL Chart suits projects requiring rich charting capabilities within Flutter mobile or web applications. It works well for dashboards, financial applications, analytics interfaces, and any app displaying time-series or categorical data. The library's strength lies in its customization depth—developers can control colors, animations, labels, axes, and interactive behavior at a granular level. Teams building cross-platform Flutter apps will find it more integrated than web-based charting solutions, since it renders natively within the Flutter framework.

The project maintains active engagement with its user base through documentation and example code. Development shows responsiveness to user needs through ongoing refinement of existing chart types and addition of new ones like Candlestick Chart. The codebase receives regular updates addressing edge cases and expanding customization options. The maintainer actively solicits community support through sponsorship, indicating sustained commitment to the project's evolution.