Attribution and licences
Chartwright renders its charts with lightweight-charts 5.2.0, an Apache-2.0 library authored by TradingView, Inc., together with its one runtime dependency fancy-canvas (MIT). The licence asks for two things, and both are on this page: the notice below, reproduced from the project’s own NOTICE file, and a link to the author’s site.
Notice
TradingView Lightweight Charts™ Copyright (с) 2025 TradingView, Inc. https://www.tradingview.com/
Where this notice appears
A licence obligation that is met on one page and forgotten on the page that leaves your browser is not met. Every surface below reads the same source file as this one, so they cannot drift apart.
/legal/attributionthe compliance pageP1MarketingFooterevery public pageP1AboutChartthe chart info panel, one click from the chartP3/share/[slug]a shared read-only chartP11/embed/[slug]a chart inside someone else’s pageP11
What we do not use
Chartwright is an original product that depends on one open-source charting library. We copy no source code, stylesheet, icon set, asset, brand or mark from any charting vendor. Every icon and every diagram in this product — including the chart on the home page — is inline SVG drawn in-house.
We do not scrape anyone’s site and we use no private or undocumented API. Our market data comes from the public REST and WebSocket endpoints that public crypto venues publish for the purpose, at cadences below their published limits, and from a user-supplied key on the tiers that need one.
Nothing we ship is named after, compatible with, or a transpiler for Pine Script. Our indicators are a typed registry with their own parameter format and no lineage to anybody else’s grammar or standard library.
The library’s built-in on-chart logo is disabled. It would satisfy the link half of the requirement and none of the notice half, so leaving it on would not have discharged anything — and a product positioned as an alternative to terminal charting should not render another company’s logo on its own chart.