Coming from lightweight-charts

Arincen Charts is not a drop-in replacement, and does not aim to be. Its API is deliberately similar in places because moving across is easier that way, but the surface is smaller and stays smaller on purpose.

This page is a factual comparison, so you can tell quickly whether the move is worth making.

What is the same

Most of the everyday API:

const chart = createChart(container, options);
const series = chart.addSeries(AreaSeries, seriesOptions);

series.setData(data);
series.update(point);
series.createPriceLine({ price: 42, title: 'target' });

chart.timeScale().fitContent();
chart.subscribeCrosshairMove(handler);

The v5 addSeries(Definition, options, paneIndex) form, series primitives, custom series, panes, price scales and the crosshair modes all take the same shapes.

What is different

Two builds	Structural features are compiled out of @arincen/charts. Import @arincen/charts/full for panes, custom series and non-linear scales.
Series are definitions	addSeries(AreaSeries, …) takes the imported object, never a string. This is what lets a chart with one area series ship without the candlestick renderer.
Fewer options	Options we have not needed are absent rather than accepted and ignored. If you pass something unknown, it does nothing.
No custom horizontal scale	Time is an index. There is no HorzScaleBehavior to replace it.
Attribution is on by default	layout.attributionLogo defaults to true. One option turns it off.

What is missing

Honestly, so you find out here rather than mid-migration:

• Custom horizontal scale behaviours
• IChartApiBase generics — this is JavaScript with types generated from JSDoc, not a TypeScript-first library
• Series definitions we have not written (there are six)
• Yield curve and options charts

Size

@arincen/charts	~14 KB gzipped
@arincen/charts/full	~17 KB gzipped
lightweight-charts v5	~35 KB gzipped

Measured the same way, on the standalone builds, both checked by a size budget that fails the build.

Should you move

Probably not, if lightweight-charts is working for you and its size is not a problem. It is a mature library with a large user base and features we do not have.

Worth trying, if you ship a chart on a page where 35 KB is a real cost, you have many pages with simple charts, or you want the structural features compiled out rather than shipped and unused.

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Lightweight Charts™ is a trademark of TradingView, Inc. This project is not affiliated with or endorsed by TradingView. Parts of this library's API surface, and some rendering constants governing candle widths and axis tick spacing, are modelled on lightweight-charts, which is distributed under the Apache License 2.0.