Online Tool Store
Radar Chart Maker
Compare products, profiles, or scores across several axes on a radar/spider chart with a color-coded legend and one-click PNG export, drawn entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
One axis per line: Axis,Series1,Series2,.... The first line is a header naming each series. Values should share a comparable scale (e.g. 0–10). Example shown — replace it with your own data.
How it works
- Paste your data as a header row plus one line per axis, comma-separated.
- Set the scale max to match your data's ceiling so the rings are meaningful.
- The radar chart redraws instantly as you type, with a color-coded legend.
- Click Download PNG to save the chart as an image.
FAQ
What format does my data need to be in?
A header row naming each series, then one axis per line: "Axis,Series1,Series2,...". For example "Speed,8,6" compares two products on a Speed axis. At least 3 axes are required to draw a meaningful shape.
What is the "Scale max" field for?
It sets the outer ring of the chart — the value a fully-extended point represents. Set it to match your data's natural ceiling (e.g. 10 for a 1–10 rating, 100 for a percentage) so the rings are easy to read.
How many series and axes can I plot?
Up to 12 axes for readable labels, and as many series (columns after the axis column) as you list in the header — each gets its own color automatically.
Can I compare more than two products or profiles?
Yes — add more columns to the header row and a matching value in every axis row; each column becomes its own overlaid polygon.
Is my data uploaded anywhere?
No. Parsing and drawing both happen locally in your browser with the Canvas API — nothing is sent to a server, including when you download the PNG.
How we compare
| Feature | Online Tool Store | Spreadsheet radar chart | Design tools (e.g. Figma plugin) |
|---|---|---|---|
| No sign-up or spreadsheet setup | ✓ | ✗ | ✗ |
| No file upload — data stays in your browser | ✓ | ✓ | ✗ |
| Free, instant PNG export | ✓ | Requires charting menus | Requires an account/plugin |
If you just need a quick multi-variable comparison chart from a couple of pasted columns, Radar Chart Maker gets you a downloadable PNG in one page — no spreadsheet or design tool required.