Amplitude Labs

Free pie chart maker

Show share of a total in one glance. Import a CSV and each row becomes a labeled slice with its percentage worked out for you. Download the pie chart as a PNG or JPG, free with no signup.

  • Free forever
  • No signup
  • Your data never leaves your browser

Drag and drop your CSV

Or paste rows straight from a spreadsheet. Your data stays in your browser — nothing gets uploaded.

What is a pie chart?

A pie chart divides a circle into slices, each sized by its share of the total. It answers exactly one question — what fraction of the whole does each part represent — and answers it instantly, which is why it survives every data-visualization style debate. The rule that keeps a pie honest is few slices: five or fewer, sorted, with the small leftovers grouped into "Other."

How to make a pie chart

  1. Import your CSV

    A label column and a value column — like Channel,Signups. Drag the file in or paste two columns from a spreadsheet.

  2. Check the slices

    Each row becomes a slice, sorted largest first, with its percentage computed automatically. The smallest slices fold into "Other."

  3. Title it

    Give the chart a title — it renders on the exported card along with the labels.

  4. Download or embed

    Export a high-resolution PNG or JPG for decks and docs, or copy the static HTML embed.

When to use a pie chart

  • Share of a whole at a single point in time: signups by channel, revenue by plan

  • Simple audiences and slides where one number per slice is enough

  • Quick before/after comparisons of a mix, using two charts side by side

When not to: Pies stop working past five or so slices, so this tool folds the smallest ones into an "Other" slice. For precise comparisons between close values, a bar chart is easier to judge by eye.

Charts that update themselves

A chart from a CSV is a snapshot. Amplitude charts read straight from your product’s data — funnels, retention, and trends that stay current without another export. Plans start free.

See plans

Frequently asked questions

Drop in a CSV with a label column and a value column — like Channel,Signups. Each row becomes a slice, sized and labeled with its percentage automatically.
The tool shows the five largest slices and groups the rest into a gray "Other" slice, because pies with many thin slices stop being readable.
Yes, with one click. The donut type is the same chart with an open center, which gives it a lighter look.
Yes. Every slice is labeled with its name and percentage, computed from your values — no formulas needed on your side.
Only the five largest values keep their own slice; the rest are summed into "Other" to keep the chart readable. Switch to a bar chart to see every row on its own.
No. It is held in your browser’s memory only for as long as the tab is open, and it is never written to disk or sent to Amplitude. Reload the page and you start from an empty uploader.

Why use this chart maker

Create beautiful charts instantly

Every chart is drawn in Amplitude’s own palette and typography, the same ones behind our product. There is no theme to choose and no colors to adjust, so your data looks presentable the moment it lands.

No signup or account needed

There is no signup, no login, and no paywall. Your CSV is parsed and charted entirely in your browser, so nothing is ever uploaded to Amplitude or saved on our side. You can chart data you would never paste into a website.

Download or embed on the spot

Take a high-resolution PNG or JPG for a deck, the cleaned CSV, or a self-contained HTML snippet that drops into a doc or wiki. One click, no export queue.

Make another kind of chart

Your data carries over, so switching type costs you nothing — no re-importing. Every chart below is drawn by the same tool, in Amplitude’s palette.

  • Line chart

    The default for trends over time. Use it for metrics like weekly active users, revenue, or signups by month.

  • Area chart

    A line chart with the space under it filled in. Good when the volume itself matters, not just the direction.

  • Stacked area chart

    Shows how parts add up to a whole over time, like traffic by channel or revenue by plan.

  • Bar chart

    Compares amounts across categories. The right pick when your x-axis is a set of things, not a timeline.

  • Stacked bar chart

    Category totals plus what each one is made of, in a single chart.

  • Horizontal bar chart

    A bar chart turned sideways. Use it for rankings or when category names are too long to fit under columns.

  • Donut chart

    A pie chart with an open center. Same job as a pie, with a lighter look.

  • Funnel chart

    Drop-off across sequential steps, like visit, signup, activation, purchase. The classic product analytics view.

  • KPI chart

    Turns each series into a headline number with its total and average, for when the figure matters more than the trend.

See all ten chart types