HTML Charts / Combo Chart
Free Chart.js chart for HTML containers
Combo Chart
Bars for one metric with one or two more as lines on a second axis, grouped by day, week, month, quarter or year.
v1.1.0Live demo · random data1–3 metrics0 dimensionsneeds a dateOver time
Live demo – the chart is reading the random grid underneath, exactly as it reads a real one
Demo grid · … rows of random valuesIn use this is your grid, tucked behind the chart
When to use it
Use it when a volume and a rate belong together – revenue and margin, orders and conversion – on one time axis.
Questions it answers
- How do volume and rate move together?
- Did the rate drop when volume grew?
- What happened last period vs the one before?
How to use it
- On your dashboard page, add a grid with the columns below (or map your own header names – see below). Keep it on the same page – tuck it behind the chart rather than hiding it, and make it tall.
- Add an HTML container (one that runs JavaScript) and paste the snippet.
- View the page. The chart finds the grid, reads every row and draws itself; it updates when filters change the grid.
| Default header | Key | What it's for | |
|---|---|---|---|
Date | date | Required | A daily date or a month key. |
Metric 1 | v1 | Required | Bars. |
Metric 2 | v2 | Optional | Line on the right axis. |
Metric 3 | v3 | Optional | Second line – shares the right axis if it's the same kind of number. |
<div data-chart-embed="combo-chart" style="height:100%"></div>
<script>
(function () {
var s = document.createElement("script");
s.src = "https://viz.kaijxnes.com/charts/combo-chart-1.1.0.js";
s.integrity = "sha384-K7Um1/Hpi0hcaHoo02pT0M7N9GSiK75fhBOh/VsQ7OyYbzKxXO+TYHSbqkFm7lZ+";
s.crossOrigin = "anonymous";
document.head.appendChild(s);
})();
</script>- Script URL
https://viz.kaijxnes.com/charts/combo-chart-1.1.0.js- Integrity (SRI)
sha384-K7Um1/Hpi0hcaHoo02pT0M7N9GSiK75fhBOh/VsQ7OyYbzKxXO+TYHSbqkFm7lZ+- Chart.js
https://viz.kaijxnes.com/chart.umd-4.4.1.js·sha384-dug+JxfBvklEQdJ4AYuBBAIScUz0bVN73xpy273gcAwHjb3qI0fXmuYNaNfdyYJG
The integrity value pins this exact version: the browser refuses to run the script if a single byte changes. New versions get a new file name and a new snippet, so a dashboard only changes when you paste the new snippet.
Your own column names
The chart looks for the default headers above. If your grid's headers are different, map them by key with data-columns on the placeholder – the chart then shows your names too. data-labels (same keys) changes just the on-screen names, and data-title changes the heading. For grids that draw rows in batches, data-grid-class and data-scroll-class name the grid's container and its scroll box so every row is read.
<div data-chart-embed="combo-chart" data-columns='{"month":"Your Month Header","v3":"Your Metric Header"}' data-title="Your title" style="height:100%"></div>
<script>
(function () {
var s = document.createElement("script");
s.src = "https://viz.kaijxnes.com/charts/combo-chart-1.1.0.js";
s.integrity = "sha384-K7Um1/Hpi0hcaHoo02pT0M7N9GSiK75fhBOh/VsQ7OyYbzKxXO+TYHSbqkFm7lZ+";
s.crossOrigin = "anonymous";
document.head.appendChild(s);
})();
</script>What it does
- Group daily data by day, week or month, and monthly data by month, quarter or year
- Last 12, last 24 or all periods
- A card per metric with the latest period and its change
Data & security
- Reads only what is drawn on the page for the viewer, so the viewer's normal permissions still apply
- Calculations happen in the viewer's browser; nothing is uploaded or sent anywhere
- The only downloads are this script and Chart.js, both integrity-checked
- No logins, API keys, cookies or browser storage
Other versions
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