Donut Chart Maker

Donut Chart Maker: Core Features and Principles

When presenting reports and statistics, you often need to show the proportions of different parts. Drawing a donut chart manually is not only time-consuming but also difficult to adjust. A donut chart maker helps you quickly convert data into high-definition donut charts. Simply enter the names of your items and their corresponding values to automatically generate a proportionally accurate donut chart that intuitively visualizes your data distribution. A donut chart, also known as a doughnut chart, is a variation of a pie chart with a blank center that can display total information, making it ideal for showing percentages, market shares, and more.

Why Choose Our Donut Chart Generator?

• Supports custom data labels, values, and colors to easily distinguish between different categories.
• Adjustable inner radius, fonts, and titles to meet your personalized presentation needs.
• No registration or download required. Export your generated charts in PNG or SVG formats for easy insertion into documents and presentations.

How to Use

1. Enter category labels in the data input area, separated by commas or line breaks (e.g., Apple, Banana, Orange).
2. Enter the corresponding numerical values, also separated by commas or line breaks (e.g., 30, 45, 25). Ensure the values are positive integers or decimals.
3. Set the chart title, color scheme, and inner radius (default is 60%) as needed.
4. Click the "Generate Donut Chart" button to preview the chart on the right. You can further adjust the styling and click "Download Image" to save it.
5. Example input: Labels "Q1, Q2, Q3, Q4" and values "120, 200, 150, 80" will generate a donut chart showing the sales proportion for the four quarters.

Frequently Asked Questions (FAQ)

• Q: How do I adjust the size of the blank space in the middle of the donut chart?
  A: Use the "Inner Radius" slider. A larger value creates a larger center circle. We recommend setting it between 50% and 70% for the best visual effect.
• What output formats does the donut chart maker support? Currently, it supports downloading PNG bitmaps and SVG vector graphics. PNG is suitable for direct use, while SVG is ideal for post-editing and scaling.

Important Notes

Input values must be positive numbers; negative or zero values are not supported (a chart cannot be generated meaningfully if all values are zero). The number of labels and values must match, otherwise an error will be prompted. The generated donut chart is based entirely on your input data and is not uploaded to any server. All processing is done locally in your browser to protect your data privacy. If you have more than 10 data categories, we recommend simplifying your classifications to avoid a cluttered chart. The resolution of the exported image is related to your browser window size; you can zoom in on the page before exporting to get a higher-definition image.

Pro Tips & Best Practices

Donut charts are best suited for displaying the proportions of 5 to 8 categories. If you have too many categories, consider using a bar chart instead. For scenarios emphasizing the total volume, you can add the total value in the hollow center (this tool supports this via the title/subtitle feature). If you prefer to display specific values rather than percentages, you can add them through secondary editing after generation. Common applications include market share, budget allocation, and survey results. To ensure color legibility, please choose high-contrast colors for adjacent categories.