# Chart.js

Simple HTML5 Charts using the <canvas> tag

Repository: https://github.com/chartjs/Chart.js
Canonical: https://ross.abutalabs.com/products/chartjs
Homepage: https://www.chartjs.org/
Language: JavaScript
License: MIT
License Family: permissive
Topics: javascript, chart, html5, canvas, graph, html5-charts
Last push: 2026-05-27T21:17:31+00:00

## Health v2 (maintenance only)
Score: 71/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 84, release rhythm 39, longevity 100
- inputs: {"age_days": 4917, "days_push": 98, "days_rel": 324, "gap_med": 57.0, "n_releases_24m": 7}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 67664, forks 11943 (observed 2026-08-28T04:12:20.847499+00:00)

## What it is
Chart.js is a simple yet flexible JavaScript charting library that renders charts using the HTML5 <canvas> tag. It supports multiple chart types (line, bar, pie, etc.) with responsive, configurable visualizations for web pages.

## Use cases
- add charts to a web dashboard
- render line and bar graphs in the browser
- visualize data with canvas-based charts
- create responsive pie charts for a website
- embed interactive graphs in a JavaScript app

## When to choose
- you need lightweight, canvas-based charts in a browser
- you want a well-documented, MIT-licensed charting library with a large community
- you need responsive charts without heavy dependencies

## When to avoid
- you need server-side or native mobile chart rendering
- you require highly complex scientific or 3D visualizations
- you prefer SVG-based charts for fine-grained DOM manipulation

## Facets
- artifact type: library
- maturity: stable
- function: data-visualization, charts
- domain: data-visualization, frontend, web-development
- platform: browser, cross-platform
- tags: canvas, html5, javascript, charting, graphs, nodejs

## Member repositories
- chartjs/Chart.js (main) score 71
- chartjs/awesome (docs) score 65

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:12:20.847499+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 2026-08-29T16:16:24.236224+00:00, confidence not recorded.
  - readme: https://github.com/chartjs/Chart.js (fetched 2026-08-28T04:12:20.847499+00:00, sha 30418232ad2c)
- Data as of 2026-08-30T08:39:29.467469+00:00.