10 Free ECharts Data Visualization Snippets: A Synced Candlestick + Volume Panel, a Sankey Diagram That Actually Traces Drop-Off & a Sliding-Window Realtime Chart

10 Free ECharts Data Visualization Snippets: A Synced Candlestick + Volume Panel, a Sankey Diagram That Actually Traces Drop-Off & a Sliding-Window Realtime Chart

This batch opens a new corner of the collection: real data visualization built on Apache ECharts instead of hand-rolled SVG. All ten load the genuine echarts.min.js from a CDN and lean on the parts of the library that are easy to get wrong the first time — dataZoom ranges that have to stay in sync across two axes, a treemap that has to know when to stop revealing levels, and a "live" chart that has to update forever without its memory growing forever. None of these are toy configurations; every one is the kind of chart an actual analytics or ops dashboard would ship. Every one is a live, interactive preview you can try right here in the article, and each exports to React, Vue, Angular or Tailwind in one click from its snippet page. What these ten get right Zoom that stays in sync across two panels, not one. The candlestick chart shares a single dataZoom and a linked crosshair across its price and volume panels, so dragging the slider — or hovering a candle — never leaves the tw…