Chart Js reduce text size for label on X axis

Question

I'm using Chart.js (http://www.chartjs.org/) and it's working fine, but I have too big X labels also with 45 degrees orientation (is auto adjusting). I would like to reduce the size of that text, is it possible to do only for X axis? thanks

You could use labels: fontSize property chartjs.org/docs/latest/general/fonts.html — Juan Caicedo
– Juan Caicedo, Commented Jul 13, 2018 at 22:44

Andrew L · Accepted Answer · 2018-07-13 22:54:42Z

2

Yes in the ticks.fontSize configuration you can do it only for the x-axis. For example

var ctx = document.getElementById("myChart");
var myChart = new Chart(ctx, {
  type: 'bar',
  data: {
    labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
    datasets: [{
      label: '# of Votes',
      data: [12, 19, 3, 5, 2, 3],
      backgroundColor: [
        'rgba(255, 99, 132, 0.2)',
        'rgba(54, 162, 235, 0.2)',
        'rgba(255, 206, 86, 0.2)',
        'rgba(75, 192, 192, 0.2)',
        'rgba(153, 102, 255, 0.2)',
        'rgba(255, 159, 64, 0.2)'
      ],
      borderColor: [
        'rgba(255,99,132,1)',
        'rgba(54, 162, 235, 1)',
        'rgba(255, 206, 86, 1)',
        'rgba(75, 192, 192, 1)',
        'rgba(153, 102, 255, 1)',
        'rgba(255, 159, 64, 1)'
      ],
      borderWidth: 1
    }]
  },
  options: {
    scales: {
      yAxes: [{
        ticks: {
          beginAtZero: true
        }
      }],
      xAxes: [{
        ticks: {
          fontSize: 8
        }
      }]
    }
  }
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.2/Chart.bundle.min.js"></script>
<canvas id="myChart" width="400" height="400"></canvas>

answered Jul 13, 2018 at 22:54

Andrew L

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1 Comment

Matt Vegas Over a year ago

thanks, just added this xAxes: [{ ticks: { fontSize: 8 } }] and i resolved.

sportanova · Accepted Answer · 2023-03-22 11:32:40Z

0

For version 3.5.1 it's:

options.scales.x.ticks.font.size = $FONT_SIZE

answered Mar 22, 2023 at 11:32

sportanova

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