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Pie Chart Maker — Free Online Pie Charts with Percentages

In short: the Pie Chart Maker divides a circle by your first data series — every slice angle is exactly value ÷ total × 360° — with percentage labels and a full legend.

Budgets, survey answers, market share: when the question is "what fraction of the whole?", a pie answers instantly. Enter the parts and download.

Private by design: everything in this tool happens 100% in your browser with JavaScript. Your data, photos and designs are never uploaded to a server, never stored and never seen by us - close the tab and everything is gone.

How to use the Pie Chart Maker

  1. Type your labels and numbers into the grid, or paste CSV into the box below the chart and press Apply CSV.
  2. Adjust the title, legend and per-series colours until the chart reads clearly at a glance.
  3. Press Download chart as PNG and drop the image into your document, slides or post. Use Copy my data as CSV to save your figures for later.

How it works

Slice angles are exact proportions of the total, and slices of 4% or more carry their percentage inside. The legend lists every label with its value and percentage, so small slices stay readable even without an inside label. The chart is drawn by hand on an HTML canvas by Loona’s shared chart engine — no chart library and no server. Everything is computed locally, so your numbers never leave your device.

Worked example

A student turns her monthly budget into a pie for a class presentation: rent is 45%, food 28% — the class sees instantly where the money goes.

Frequently Asked Questions

Which series does the pie use?

The first series. Put the values you want as slices in the first column of numbers; extra series are ignored by the pie.

Why does a slice have no percentage inside?

Slices under 4% are too small for a label; their percentage still appears in the legend.

How many slices work well?

Up to about seven. Group tiny categories into "Other" for a clearer pie — or try the Waffle Chart Maker for many parts.

Is my data uploaded?

Never — the pie is drawn 100% in your browser.

The Loona Chart Family

Embed this tool on your website — free

Add this tool to your own website or blog — it is completely free, needs no sign-up, and always shows the latest version. Copy the code below and paste it into your page where you want the tool to appear. Keeping the small “Powered by Loona Automation” credit line under the embed helps keep this tool free — but you are free to style or remove it; the tool works either way.