Radar Chart
Axes & Data Series
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Free Online Radar Chart Maker
What is a Radar Chart?
A radar chart — also called a spider chart or web chart — plots multiple variables on axes radiating from a center point, connecting them to form a polygon shape. Each axis represents a distinct category, such as speed, cost, or quality, making it easy to compare the overall profile of one or more subjects at a glance. Use a radar chart when you need to evaluate several dimensions simultaneously and quickly spot strengths, weaknesses, or imbalances across a consistent scale.
Key Features
Multiple Series Overlay
Plot two or more subjects on the same chart to compare their profiles side by side.
Filled Area Display
Toggle fill with adjustable opacity to make each series stand out visually.
Polygon or Circle Grid
Switch between polygon and circular grid lines to match your preferred style.
Customizable Axes
Add, remove, or rename axes to match your exact categories and data points.
Dot Markers
Show data point dots on each axis for precise value reading at a glance.
Legend & Label Control
Toggle legends and adjust label font size for clean presentations and reports.
Best For
When to Use
- You are comparing 3–8 attributes for one or more subjects
- You want a visual profile to show overall balance or imbalance
- All axes share a common scale or can be normalized to one
- You need to highlight gaps across dimensions at a glance
- A grouped bar chart would require too many columns to be readable
Common Mistakes
- !Using more than 8 axes — too many spokes make the chart unreadable
- !Overlaying more than 3–4 series — they overlap and obscure each other
- !Mixing axes with different scales without normalizing to a common range
- !Including unrelated categories that don't belong in the same profile
- !Treating filled area size as a meaningful metric — polygon area can mislead
- !Leaving axis labels vague, making readers guess what each spoke represents
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View All Templates
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