Chart.js

slack

Installation

You can download the latest version of Chart.js from the GitHub releases or use a Chart.js CDN. Detailed installation instructions can be found on the installation page.

Creating a Chart

It's easy to get started with Chart.js. All that's required is the script included in your page along with a single <canvas> node to render the chart.

In this example, we create a bar chart for a single dataset and render that in our page. You can see all the ways to use Chart.js in the usage documentation.

  1. <canvas id="myChart" width="400" height="400"></canvas>
  2. <script>
  3. var ctx = document.getElementById('myChart').getContext('2d');
  4. var myChart = new Chart(ctx, {
  5.     type: 'bar',
  6.     data: {
  7.         labels: ['Red', 'Blue', 'Yellow', 'Green', 'Purple', 'Orange'],
  8.         datasets: [{
  9.             label: '# of Votes',
  10.             data: [12, 19, 3, 5, 2, 3],
  11.             backgroundColor: [
  12.                 'rgba(255, 99, 132, 0.2)',
  13.                 'rgba(54, 162, 235, 0.2)',
  14.                 'rgba(255, 206, 86, 0.2)',
  15.                 'rgba(75, 192, 192, 0.2)',
  16.                 'rgba(153, 102, 255, 0.2)',
  17.                 'rgba(255, 159, 64, 0.2)'
  18.             ],
  19.             borderColor: [
  20.                 'rgba(255, 99, 132, 1)',
  21.                 'rgba(54, 162, 235, 1)',
  22.                 'rgba(255, 206, 86, 1)',
  23.                 'rgba(75, 192, 192, 1)',
  24.                 'rgba(153, 102, 255, 1)',
  25.                 'rgba(255, 159, 64, 1)'
  26.             ],
  27.             borderWidth: 1
  28.         }]
  29.     },
  30.     options: {
  31.         scales: {
  32.             yAxes: [{
  33.                 ticks: {
  34.                     beginAtZero: true
  35.                 }
  36.             }]
  37.         }
  38.     }
  39. });
  40. </script>

Contributing

Before submitting an issue or a pull request to the project, please take a moment to look over the contributing guidelines first.

For support using Chart.js, please post questions with the chartjs tag on Stack Overflow.

License

Chart.js is available under the MIT license.