dygraphs

About dygraphs

dygraphs is an open source JavaScript charting library for plotting and exploring dense data sets in the browser. Charts are created by instantiating a Dygraph object with a container element, a data source, and an options object, and are interactive by default: mouseover highlights individual values, click-and-drag zooms, double-click resets the zoom, and shift-drag pans. Options include a legend, title, axis labels, and a data roller with an adjustable averaging period.

The library is designed to handle large data sets, plotting millions of points, and includes strong support for high/low bands and confidence intervals. Behavior and appearance can be customized extensively through options and custom callbacks. It works across recent desktop browsers and supports pinch-to-zoom on mobile and tablet devices.

It is intended for developers building interactive charts for the web. It can be installed via npm and used with bundlers such as webpack, browserify, or rollup, importing the Dygraph object from the package. Documentation available includes a tutorial, an options reference, an API reference, a CSS reference, and a data format reference.

Key features

• Plots millions of data points without performance degradation
• Interactive zoom, pan, and mouseover enabled by default
• Strong support for high/low bands and confidence intervals
• Highly customizable via options and custom callbacks
• Works in all recent browsers with pinch-to-zoom support on mobile/tablet

Frequently asked questions