Pie Chart Maker
🔒 Local only Drawing & CAD
Enter labels and values to build a pie chart and export PNG.
The pie chart maker lets you enter rows of label and value, instantly rendering a pie chart with automatically calculated percentages and a legend. Export a PNG when done to show proportions and structure in reports, slides, or teaching. Everything is drawn locally in your browser and nothing is uploaded.
Tool area
How to use
- Enter a chart title (optional).
- Fill in a label and value on each row.
- Percentages of the whole and a legend are generated automatically.
- Click "Export PNG" to download the image.
Use cases
- Show budget or spending category shares.
- Display the share of each survey option.
- Compare market share across products or sources.
FAQ
- How are percentages calculated?
- All valid values are summed, then each is divided by the total to get its percentage.
- How many categories can I add?
- Keep it to about eight; too many slices are hard to read, so consider a bar chart instead.
- Can values be decimals?
- Yes, decimals are supported; empty or invalid rows are ignored.
- What format is the export?
- A white-background PNG image with legend and percentages, ready to use.
- Is my data uploaded?
- No, all drawing happens locally in your browser.
Privacy & local processing
🔒 This tool runs entirely in your browser. No data is uploaded to any server.
All chart drawing happens locally in your browser; your data is not uploaded.
Trust & usage note
This tool runs mainly in your browser. Your input is not actively uploaded to a server. Avoid entering highly sensitive data. Results are for reference only.
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