Category values that sum to a meaningful whole
Label style — percentages, values, or both
Small-slice grouping preference
Audience and the takeaway
Chart tools
Public tool
Turn category shares into a pie chart people can read.
Give Vizify category values and the story behind them. It returns a Mermaid-native, readable share-of-whole chart with sensible grouping and labels.
Native Mermaid pie chart, not a generic circle graphic Percentage, value, or combined slice labels Optional grouping keeps small slices readable
Start with the messy versionOptional choices help Vizify shape the handoff.
Try a starting point
Your brief and choices open in Vizify for review. Nothing runs until you send it.
Pie chart structure (Mermaid-native pie chart)
Label and legend plan
Generation-ready chart prompt
What it does
Built to hand back finished work.
Native Mermaid pie chart routing
Vizify sends pie chart requests to Mermaid's native pie chart type by default — the format built for part-to-whole data — and uses MakeCharts only when you explicitly need it.
Labels that stay legible
Choose percentages, raw values, or both, and group small categories into a single slice so a dozen tiny wedges don't crowd the chart.
Built for one clear share, not chart clutter
Slice order, grouping, and label placement are planned around the takeaway you provide, not a generic default arrangement.
Continue with the context intact
The complete brief opens in Vizify, where you can generate, review, revise, and save the work without rebuilding the prompt.
FAQ
Questions, answered.
What data do I need to create a pie chart?
Provide each category name and its value, where the values represent parts of one meaningful whole — revenue by product, votes by option, or similar. Values must be positive; a pie chart can't represent negative numbers.
How many categories can a pie chart show before it gets unreadable?
Around 5-7 slices stay legible. Beyond that, group the smallest categories into an "Other" slice with the Grouping option, or switch to a bar chart, which handles many categories more clearly — try bar-chart-maker for that case.
Can I show percentages and values together on the slices?
Yes. Choose the Both option to label each slice with its percentage and its raw value; choose Percentages or Values alone for a simpler look.
Can I group small categories into an "Other" slice?
Yes. Select Group small slices and Vizify combines the smallest categories into one slice so the chart stays readable instead of showing a dozen thin wedges.
Should I use a pie chart or a bar chart for this data?
Use a pie chart when categories are parts of one whole and the share of the total is the point. Use a bar chart when you're comparing exact values across more than six or seven categories — bar-chart-maker is built for that.
What's the difference between a pie chart and a donut chart?
A donut chart is a pie chart with the center removed, which leaves room for a total or headline metric. If you want that center label, use donut-chart-maker instead.
Do the values need to add up to 100%?
Not literally — provide the actual values, such as revenue, counts, or votes, and Vizify calculates each slice's share of the total automatically. Just include every relevant category so the shares stay accurate.
Does Vizify use Mermaid or another engine to render the pie chart?
Pie charts route to Mermaid's native pie chart type by default. Vizify only considers a MakeCharts pie format when you explicitly request it or need something Mermaid's pie type can't represent.
Do I need an account to create a pie chart?
No. You can prepare the brief here without an account. Sign in to Vizify when you want to generate, save, or reuse the chart.
Can I save and reuse the chart and its data later?
Yes. In Vizify you can save the artifact, prompt, and underlying data, then update it with new numbers or adapt it for a later report.
What makes a good pie chart brief
Provide each category name paired with one positive value, and make sure the categories together represent the whole you want to show — all revenue sources, all survey responses, and so on. Note which slice or comparison is the takeaway so Vizify can order and label the chart around it.
Common pie chart mistakes to avoid
Avoid pie charts with more than seven or eight slices, categories that don’t sum to a real whole, and exploded or heavily styled variants that distort how large each slice looks. If you’re comparing precise values rather than shares, a bar chart is usually the clearer choice.
Pie, donut, or bar — picking the right chart
Use a pie chart for a simple share-of-whole story with a handful of categories. Use a donut chart (donut-chart-maker) when you also want a headline number in the center. Use a bar chart (bar-chart-maker) when you have many categories or need to compare exact values rather than proportions.
Start with the rough version
Open Vizify