17.2k stars · Apache-2.0 · v5.2.1 (2026-08-12)
TradingView's own charting library — the chart a forex trader already knows how to read.
▶Repo detailsthe review · specs · pros & cons · install
What it is
TradingView's own open-source financial charting library: candlesticks, lines, areas and histograms drawn on an HTML5 canvas, around 45 kB, built for long series and smooth panning. It draws price data. It does not compute indicators.
Why it matters
Edition 10 gave ScalpingMate stockstats (#9) — fifty legible indicators under a licence you can ship — and then had nowhere to draw them. This is that screen. Everything else in ScalpingMate's chain (tsfresh, Optuna, arch, SHAP) is research machinery a paying user never sees; the chart is the product, and adopting TradingView's visual conventions means a forex trader recognises it in the first second instead of learning yours. Apache-2.0 matters here for the same reason it did for quantstats (Ed. 4 #11): this can live inside the paid screen, which nothing AGPL in your backtesting stack can.
- Apache-2.0 and from TradingView itself, so the conventions are the ones your users already have in their hands.
- Very small and fast — years of M1 bars without the page dying.
- Canvas-based and touch-friendly, so it survives the phones your YouTube audience arrives on.
- Deliberately minimal: no indicator maths, no drawing tools, no order overlay. You build all of that.
- v5 was a breaking rewrite, so most tutorials and Stack Overflow answers still target v4 and will mislead you.
- Their terms require an attribution notice on the chart. Read the licence page before shipping a paid screen.
A React component in the ScalpingMate front end, fed by a FastAPI endpoint that returns stockstats columns as series.
