ECharts, a pure Javascript chart library, can run smoothly on PC and mobile devices, being compatible with most of current Web browsers (IE8/9/10/11, Chrome, Firefox, Safari and so on), it relies on a lightweight Canvas library ZRender, and provides intuitive, vivid, interactive, and highly customizable data visualization charts. More over, ECharts 3 adds richer interactive functions and more visualization effects, and optimizes more deeply on mobile end.