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The JavaScript step line chart is like a line chart except that the data points are connected using vertical and horizontal lines, showing a step-like progress. Supports features like zooming, panning, animation, and dynamic updates.

Multi series

Allows you to plot multiple series in a single chart to compare different data sets. Enabling legend and tooltip gives more information about the individual series.


Marks data points with built-in shapes such as circles, rectangles, ellipses, vertical lines, horizontal lines, diamonds, triangles, pentagons, crosses, and pluses. In addition to these shapes, use images to make the point more attractive.

Data label

Data labels display information about data points. Add a template to display data labels with HTML elements such as images, DIV, and spans for more informative data labels. You can rotate a data label by its given angle.

Multiple axes

Use multiple axes to plot different data sets that widely vary from one other.

Zoom and pan

Enable zooming and panning support when dealing with large amount of data to visualize the data point in any region.

Dynamic stepline chart

Create and update the stepline chart with live data that changes over seconds or minutes.

Empty/null data point

Handle the missed data elegantly with empty points support.

Vertical chart

The stepline chart can be transposed vertically to view the data in a different perspective.


Customize the color, thickness, and dash array of the stepline chart using built-in APIs.

JavaScript Step Line Chart Code Example

Easily get started with JavaScript Step Line using a few simple lines of JS code, as demonstrated below. Also explore our JavaScript Step Line Chart Example that shows you how to render and configure the spline area chart component.

import { Chart, StepLineSeries, DateTime } from '@syncfusion/ej2-charts';
Chart.Inject(Chart, StepLineSeries, DateTime);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'DateTime'
                type: 'StepLine',
                dataSource: [
                    { x: new Date(1975, 0, 1), y: 16 },
                    { x: new Date(1980, 0, 1), y: 12.5 },
                    { x: new Date(1985, 0, 1), y: 19 },
                    { x: new Date(1990, 0, 1), y: 14.4 },
                    { x: new Date(1995, 0, 1), y: 11.5 },
                    { x: new Date(2000, 0, 1), y: 14 },
                    { x: new Date(2005, 0, 1), y: 10 },
                    { x: new Date(2010, 0, 1), y: 16 }],
                xName: 'x',
                yName: 'y',
}, '#Chart');
<!DOCTYPE html>
    <div id="container">
     <div id="Chart"></div>

Learning Resources


Stepline Chart User Guide

Learn the available options to customize JavaScript stepline chart.


Stepline Chart API Reference

Explore the JavaScript stepline chart APIs.


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