Arincen ChartsFinancial charts in 14 KB

A canvas charting engine with zero dependencies, in two builds — one that carries everything, and one that has the rest compiled out.

Get started

View on GitHub

14 KB, and the build proves it

The bundle fails to build if it grows past its budget. The number in the heading is checked on every commit rather than measured once and repeated.

No dependencies

Nothing in `dependencies` to audit, update, or have a CVE filed against. The whole library is one file with no imports outside itself.

Two builds, one codebase

Panes, non-linear price scales and custom series are compiled out of the light build entirely. Not tree-shaken and hopefully removed — absent.

Extensible without forking

Primitives draw over a chart that already works. Custom series replace the drawing entirely. Both take plain objects, and neither needs a subclass.

In thirty seconds

import { createChart, AreaSeries } from '@arincen/charts';

const chart = createChart(document.getElementById('chart'), { autoSize: true });
const series = chart.addSeries(AreaSeries, { lineColor: '#2962ff', lineWidth: 2 });

series.setData([
    { time: '2026-01-01', value: 24.10 },
    { time: '2026-01-02', value: 24.83 },
    { time: '2026-01-05', value: 24.41 },
]);

chart.timeScale().fitContent();

Note the third data point. The gap over the weekend is not drawn as empty space — bars are placed by their position in the data, never by elapsed time. That is the right default for market data, and the wrong one for a sensor log.

Why another charting library

Because most of what a financial charting library carries, most pages never use. Panes, logarithmic scales, custom series and touch tracking are all real features and all structural, which means a bundler cannot remove them: the core genuinely references them, and nothing can prove your page has only one pane.

So the removal happens earlier, at build time. @arincen/charts does not contain the code for what it leaves out. chart.panes is not a method that returns an empty array — it does not exist.

That is the whole idea. Everything else is a charting library.