Too many slices
With more than ~8 slices, labels overlap and the chart loses meaning.
Fix: Group the smallest categories into an `Other` row before rendering.
Pie Chart Maker
Turn label/value pairs into a labeled pie chart with custom colors, legend, and PNG/SVG export
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What is Pie Chart Maker
Last reviewed:
A pie chart divides a whole into labeled slices whose areas are proportional to each value. It is most effective with a small number of categories (typically five to seven) and values that sum to a meaningful total.
Pie Chart Maker takes CSV or JSON label/value pairs, renders a labeled pie in your browser, and exports it as PNG or SVG for decks, dashboards, and documentation.
Why use it
- Skip spreadsheet charts when you need a quick share-of-total visual.
- Paste survey or analytics breakdowns and preview immediately.
- Pick from five palettes to match a brand or report.
- Download PNG or SVG without leaving the browser.
Features
- CSV and JSON input
- Automatic slice labeling
- 5 color palettes
- Legend toggle
- PNG export
- SVG export
- Client-side rendering
How to use Pie Chart Maker
- Paste data. Paste label/value rows for the slices as CSV or JSON.
- Pick a palette. Choose a palette and toggle the legend if needed.
- Export. Download PNG or SVG from the settings panel.
Example (before/after)
CSV input
label,value Organic search,52 Direct,22 Referral,14 Email,8 Social,4
Rendered pie chart
Pie chart with 5 slices, each labeled and colored from the palette, proportional to the values 52/22/14/8/4, rendered as SVG ready for PNG export.
Common errors
Negative values
Negative values cannot be represented on a pie chart.
Fix: Remove negative rows or switch to a bar chart if you need to visualize deltas.
FAQ
When should I use a pie chart vs. a bar chart?
Use a pie chart to emphasize share of a single whole with few categories. Use a bar chart when you have many categories or want to compare exact values.
Can I reorder slices?
Yes — reorder the rows in your CSV or JSON input. Slices render in the order provided.
Is my data uploaded?
No. Rendering is entirely client-side.
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