tradingview/lightweight-charts

Lightweight Charts is a JavaScript library made by TradingView for displaying interactive financial charts on web pages. Financial charts, like the price graphs you see on stock trading or cryptocurrency sites, can be heavy and slow, but this library is designed to be small and fast, using HTML5 canvas (the browser's built-in drawing surface) to render charts efficiently without slowing down your page. You give it a list of price data with dates and values, and it draws an interactive chart that users can zoom and scroll. The library supports various financial chart types. Developers can also build custom plugins to extend its behavior beyond what comes built in. The code example in the README shows how simple the basic API is: create a chart, add a line series (a type of chart line), and supply it an array of date-and-value pairs. That is enough to get a working interactive chart on a web page. It can be installed from npm (the standard JavaScript package registry) or loaded directly from a CDN link without any installation. The license requires adding attribution to TradingView on pages where the chart appears, either a link or the built-in attribution logo option. You would use this if you are building a finance app, crypto dashboard, stock tracker, or any tool that needs to display price data visually on the web. It is aimed at web developers building financial or data visualization applications who need interactive charts without the performance cost of heavier charting libraries.