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Make a Radar Chart

Express the balance across multiple axes as a polygon. Skill ratings, product comparisons, satisfaction by category — strengths and weaknesses at a glance.

Browser-only PNG / SVG / CSV export Mobile-ready
Preview
Long-press to save image
Start from a sample
Enter data

First row is the header (axes, series names). Paste your data from the second row onward.

Adjust appearance
Per-series colors Click to change individually

What is a radar chart?

A radar chart uses radial axes — one per item — connected as a polygon to express balance. Also known as a spider chart, it lets you grasp balance across categories, asymmetries, and comparisons between subjects at a glance. It's used widely in skill assessments, product comparisons, and survey analysis.

For balance, use radar

The first choice when you want to see "where the strengths and weaknesses are" or "what overall character emerges." It pairs especially well with three to eight evaluation axes.

When to use it

HR evaluation / skill analysis
Multidimensional ratings — technical, communication, leadership, and more.
Product or service comparison
Compare price, quality, design, features, and more across products.
Satisfaction by category
See per-category satisfaction (price, quality, support) at a glance.
Sports player ratings
Show player attributes — attack, defense, speed — across multiple axes.

Tips for making one well

1. Use five to eight axes

Three axes form a triangle and lose the polygon advantage; nine or more become hard to read. Five to eight axes is the sweet spot.

2. Normalize the scale across axes

A radar chart draws every axis on the same scale. Normalizing each axis to the same range (e.g., 0–100) makes the chart easy to compare.

3. Limit comparisons to two or three subjects

Polygons that overlap quickly become hard to tell apart beyond three subjects. Two-way comparisons (you vs. competitor, A vs. B) are ideal.

4. Make fills semi-transparent

To see overlapping series, set fill opacity around 20–30%. Keep line colors crisp and clear.

FAQ

For "overall balance," use a radar chart. For "precise per-category comparison," a bar chart is better. Radar charts aren't great for reading exact values.
Reorder the rows in the table and the axis order updates automatically. Placing related axes next to each other helps the polygon's shape become more recognizable.
Yes — add series to overlay multiple subjects. Each series gets its own color so you can compare strengths and weaknesses by shape.
Yes. Enter a value in "Axis maximum" under "Adjust appearance" and the axis is fixed there. Useful for unifying the scale across charts (e.g., 100-point or 5-point scales). Leave it blank for auto-scale.

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