Radar Chart Maker
Paste metrics and values to build a radar (spider) chart that compares several items across many dimensions at once. Each row is a metric; each numeric column is an item plotted as its own polygon.
How it works
A radar chart — also called a spider or star chart — plots several variables on axes that radiate from a common centre, then connects each item's values into a polygon. It is a compact way to compare a few items across the same set of dimensions and to see where each one is strong or weak. Paste one row per metric, with the metric name in the first column and one numeric column per item; a header row names the items for the legend.
Each axis is scaled to its own maximum so every dimension is visible, the item polygons are drawn with translucent fills so overlaps stay readable, and the chart re-colours for light and dark themes. Radar charts read best with three to eight metrics and a handful of items.
Examples
- Compare two products across speed, price, quality and support.
- Each metric is one axis; each item is one polygon.
- A header row names the items shown in the legend.
Frequently asked questions
- What data does a radar chart need?
- One row per metric with the metric name first, then one numeric column per item. Each item becomes a polygon connecting its values across the metric axes.
- How many metrics work best?
- Three to eight metrics read clearly. Too many axes make the chart hard to interpret, and fewer than three collapse the shape.
- How are the axes scaled?
- Each axis is scaled to the maximum value for that metric, so every dimension is fully visible regardless of the units involved.
- Is my data private?
- Yes. The chart is built in your browser and your data never leaves your device.