Free diagram tool
Pie and donut charts show how parts make up a whole — market share, budgets, survey results, portfolio mix. FreeFlowCharts includes a free pie chart maker with automatic percentages, donut mode, templates, and API support.
When pie charts work well 2–7 categories where proportions matter more than exact ranking. Budget allocation and expense breakdowns. Survey answer distributions and NPS-style summaries. Portfolio or revenue mix snapshots for stakeholders. When to choose something else Many thin slices (more than ~8 categories) — consider a bar chart. Comparing values that are nearly equal — bars show small differences better. Time series — use line charts, not pie slices over time. Editor features Label, value, and color per slice with auto-calculated percentages. Donut style toggle for a cleaner center and summary space. Templates for market share, budget, and survey results. Export and /api/create-piechart for automation. How to use it 1 Open the pie chart editor Visit freeflowcharts.app/editor/piechart.
2 Add slices Enter labels and numeric values; percentages update automatically.
3 Style Pick colors and optionally enable donut mode.
4 Export or API Download an image or create charts programmatically.
Frequently asked questions Do percentages calculate automatically? Yes. Enter raw values; the editor computes each slice’s share of the total.
Ready to draw? Open the free editor in your browser. No account, no watermarks, no install.
Open pie chart editor