ApexCharts Heatmap
An activity heatmap grid of weekly intensity, via ApexCharts.
Requires Bootstrap 5, ApexCharts. Add the CDN tags below to your page (styles in
<head>, scripts before </body>). The downloaded file already includes them.<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css"><script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script><script src="https://cdn.jsdelivr.net/npm/apexcharts@3.49.1/dist/apexcharts.min.js"></script><div class="card border-0 shadow-sm" style="width:420px;max-width:100%"><div class="card-body"><h6 class="fw-bold mb-2">Activity heatmap</h6><div id="axHeat"></div></div></div>function row(name){var d=[];for(var i=0;i<7;i++)d.push({x:'D'+(i+1),y:Math.floor(Math.random()*90)});return {name:name,data:d}}
new ApexCharts(document.getElementById('axHeat'),{chart:{type:'heatmap',height:200,toolbar:{show:false}},series:[row('W1'),row('W2'),row('W3'),row('W4')],colors:['#0d6efd'],dataLabels:{enabled:false}}).render();Free to use.This component uses Bootstrap 5, ApexCharts (linked above). Copy any file, or download a ready-to-open .html page with the CDN links already included.