RareCharts

A lightweight D3-based charting library for professional data presentation. Built for financial reporting, KPI dashboards, and operational analytics — where numbers actually matter.

CDN

<!-- Minified (recommended for production) -->
<script src="https://cdn.jsdelivr.net/gh/raredigits/rare-charts@latest/rare-charts.min.js"></script>

<!-- Readable -->
<script src="https://cdn.jsdelivr.net/gh/raredigits/rare-charts@latest/rare-charts.js"></script>

Pin to a specific version to avoid unexpected updates:

<script src="https://cdn.jsdelivr.net/gh/raredigits/rare-charts@{{ versions.charts }}/rare-charts.min.js"></script>

Quick start

<div id="my-chart"></div>

<script src="https://cdn.jsdelivr.net/gh/raredigits/rare-charts@latest/rare-charts.min.js"></script>
<script>
  new RareCharts.Line('#my-chart', {
    title:    'Revenue',
    subtitle: 'USD, last 12 months',
    height:   300,
  }).setData([
    { date: '2025-01-01', value: 1.2 },
    { date: '2025-04-01', value: 0.8 },
    { date: '2025-07-01', value: 1.5 },
    { date: '2025-10-01', value: 2.1 },
    { date: '2026-01-01', value: 2.8 },
  ]);
</script>

Chart types

Class	Description
RareCharts.Line	Multi-series line chart with crosshair and tooltip
RareCharts.TimeSeries	Price time series with zoom, pan, and OHLCV data support
RareCharts.Bar	Vertical and horizontal bar charts
RareCharts.DualAxes	Two metrics on independent Y axes, supports bar + line overlay
RareCharts.Donut	Part-to-whole with center label
RareCharts.Pie	Pie chart alias for Donut with innerRadius: 0
RareCharts.Gauge	Progress toward a target
RareCharts.Graph	Force-directed network visualization
RareCharts.Map	Choropleth and region-highlight geographic maps

Documentation

Full documentation, configuration reference, and live examples: raredigits.art/charts

License

MIT — free to use in any project, including commercial. Attribution required. See LICENSE for full terms.