Radar Chart Maker (Free Spider Chart Generator)
A radar chart plots several values around a shared center so each series becomes a polygon you can compare at a glance. To make one as an image, open a free radar chart maker, enter your axes and values, pick colors, and download a PNG or SVG you can drop anywhere.
What a radar chart shows and when to use itWhat a radar chart shows and when to use it
A radar chart (also called a spider chart or star chart) puts each dimension on its own spoke radiating from a center point. You plot a value on each spoke, then connect the dots into a shape. One shape per series. The bigger and more balanced the polygon, the stronger and more even that profile.
It's the right pick when you're comparing things across the same set of dimensions:
- Skills and scorecards. Rate a candidate or a team on communication, technical depth, speed, and a few more traits. The shape shows strengths and gaps in one look.
- Product comparison. Score two or three products on price, features, support, and ease of use. Overlapping polygons make the trade-offs obvious.
- Performance profiles. Think game characters, cars, or nutrition: attack, defense, speed, handling, all on one canvas.
Two rules keep a radar chart readable. Stick to 3 to 8 axes, since fewer looks thin and more gets cramped. And keep it to 1 to 3 series, because four or more polygons pile into noise. If you have more series than that, small multiples (one chart each) beat one crowded chart.
Make one freeMake one free
Open the radar chart maker. List your dimensions, one per axis, then type a value for each. Add a second series if you're comparing, give it its own color, and adjust the fill or line style so the polygons stay distinct. When it looks right, download it.
No signup, no watermark. You get a clean PNG for slides and docs, or an SVG when you need it to stay crisp at any size. That's the whole flow: enter your axes and values, pick colors, download the image.
Embed it anywhereEmbed it anywhere
A radar chart is just an image, so it goes wherever images go. Drop the file into a slide deck, a Notion page, or an email. In markdown or HTML, it's a one-line embed:
<img src="https://your-render-url/radar.png" alt="Team skills radar chart" />Point that tag at a saved file and it shows the snapshot you downloaded. Point it at a render URL instead, and the chart regenerates every time the page loads. Change the underlying data and the image updates itself, no re-export, no re-upload. That's the difference between a static picture and a chart that stays current.
Generate at scaleGenerate at scale
If you're producing radar charts on a schedule, from a scorecard app, or one per customer, don't open the editor each time. Render them from data with a single call.
Radar is a first-class API component, so you pass your axes and values as fields and get an image back. See the radar component for the exact field shape, and the API docs for tested request examples you can copy and run. One request per chart, no browser in the loop.
Want it hands-off? Hand the job to an AI agent over MCP. The agent takes plain instructions like "chart these five scores as a radar," picks the fields, and renders the image for you. Good for dashboards, weekly reports, or dropping a fresh chart into a Slack thread without anyone touching a design tool.
The pattern is the same either way: design the look once, then swap the axes, values, and colors per request. One template covers every chart you'll ever need.
Start with your first chartStart with your first chart
Build one now in the radar chart maker and download it free. When you're ready to automate, read the radar component reference and wire it up through the API or an AI agent. The free plan covers 100 renders a month, enough to chart a full scorecard set or a product lineup before you decide to scale up.