Open source chart projects
Every project in the registry tagged chart, ranked by real GitHub adoption.
Go language library for reading and writing Microsoft Excel™ (XLAM / XLSM / XLSX / XLTM / XLTX) spreadsheets
:bar_chart: A D3-based reusable chart library
React components for Chart.js, the most popular charting library
Interactive plotting library for .NET
Open source CSS framework for data visualization.
A charting and data visualization library for Unity. Unity数据可视化图表插件。
Composable Charting Library based on reusable D3.js components.
AI-native SwiftUI component library with full-stack recipes — connect via MCP for instant access.
Beautiful charts for React Native. Line, area, bar, pie, donut, progress, and contribution heatmaps for dashboards, reports, and data-rich mobile apps.
📈 Beautiful, high-performance Graphs and Charts for React Native built with Skia
📈📊📱💻🖥️An elegant modern declarative data visualization chart framework for iOS, iPadOS and macOS. Extremely powerful, supports line, spline, area, areaspli
Library for animated data visualizations and data stories.
Open-source UI & Charts library
A grammar of data visualization and Flutter charting library.
Database Reporting Tool and Tasks (.Net)
:bar_chart: :clipboard: Dashboards using YAML or JSON files
Highly parallelized, blazing fast directory tree analyzer
Privacy-friendly web analytics for data-driven decisions
Related tags
Frequently asked questions
How many open source chart projects are there?
This registry tracks 18 projects tagged chart, with 79,570 GitHub stars between them. The most-adopted is excelize at 21,031 stars.
Are these chart projects free to use?
Yes — 18 of the 18 carry an explicit open-source licence across 4 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which chart project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these chart projects still maintained?
11 of the 18 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.