Create Your Own Pie Chart

Build pie and 3D pie charts with labels, values, grouping, preview, and SVG, PNG, or CSV export.

Setup
Pie configuration
Keep labels concise and values positive for clean slices.
Labels and values must align one-to-one. Quote labels with spaces.
Data Entry
Chart Controls
Small slices below threshold are merged into Other.
No valid pie data yet.
Input Format Tips
  • Series rows: Keep each series with the same row count.
  • Numeric values: All value columns must be numbers.
  • Quick presets: Use a preset to validate chart behavior before custom data.
Chart Preview
Update settings to re-render instantly.
Idle No validated data yet.
Validation Focus
Use ops/category presets to validate data shape quickly.



Drawing Pie Charts

Before software should be reusable, it should be usable.

Ralph Johnson

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