Chart Maker

Build bar, line, pie, doughnut, horizontal bar, and radar charts from a simple data table.

Compare up to five data series, pick a colour scheme, and download a PNG for campaign reports and slides.

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Results will appear here once you enter your values.

Match the chart type to the marketing question

Most report charts answer one of four questions: which option is bigger, how something changed over time, how a total splits into parts, or how several options compare across many attributes. Picking the chart type that matches the question does more for clarity than any colour choice.

  • Bar: compare a single metric across channels or campaigns, such as conversions from email, paid search, and social.
  • Horizontal bar: the same comparison when labels are long, such as ad set names or landing page titles, or when you have many items to rank.
  • Line: show a trend in order, such as weekly sessions or monthly cost per acquisition. Put time periods in the Label column in order.
  • Pie and doughnut: show share of a whole, such as budget split by channel. They work best with five or fewer slices that add up to a meaningful total.
  • Radar: compare two to five brands or offers across the same set of scores, such as a competitor audit rated 1 to 10 on price, reviews, and site speed.

If a pie chart has many similar slices, switch to a sorted horizontal bar chart. People judge lengths on a common baseline far more accurately than angles or areas, so small differences between channels become visible.

Enter campaign data in the table

Each row in the data table is one label on the chart: a month, a channel, a campaign, or a product. Type the label in the first column and the value in the columns next to it. Use + Row and - Row to add or remove labels; rows are added and removed at the bottom of the table.

Each value column is a dataset (a series), and you can have up to five. Use + Dataset to compare, for example, this quarter against last quarter, or clicks against conversions for the same channels. Click the column heading to rename it; the name appears in the legend. On pie and doughnut charts every row gets its own colour, while on bar, line, and radar charts every dataset gets its own colour.

A few habits keep report charts honest and easy to read:

  • Chart one unit per chart. Mixing a count (clicks) and a rate (conversion rate) on the same axis hides the smaller series.
  • Put time periods in chronological order before choosing a line chart; the tool plots rows in the order you enter them.
  • Enter real zeros deliberately. A blank value cell is treated as 0, which can look like a collapse in a trend line.
  • Keep labels short so they do not overlap on narrow slides.

Keep axes and comparisons honest

Charts in marketing reports are often read quickly by people deciding where budget goes, so a misleading chart can drive a bad decision. The value axis on bar and line charts in this tool starts at zero, which prevents the most common distortion: a truncated axis that makes a 3% improvement look like a doubling. If a real change is too small to see on a zero-based chart, say so in the title or commentary rather than stretching the picture.

Other checks worth doing before you paste a chart into a deck:

  • Compare like with like: equal time windows, the same attribution model, and the same currency.
  • Use rates when group sizes differ. A channel with twice the traffic will usually have more conversions; conversion rate or cost per acquisition shows efficiency.
  • Label the title with the metric and period, such as “Paid search conversions by week, Q3”, so the chart still makes sense when forwarded without the email around it.
  • Avoid a line chart for unordered categories such as channels; the connecting line suggests a sequence that does not exist.
  • Do not rely on colour alone to carry meaning. The Monochrome scheme is a quick way to check whether the chart still reads when printed in greyscale.

Export for slides, documents, and dashboards

When the chart looks right, use Download PNG to save an image or Copy as Image to paste it directly into Google Slides, PowerPoint, Docs, Notion, or an email. The Background setting controls the exported image: choose White for documents and email, where a transparent image can pick up an unexpected dark background, or Transparent when placing the chart on a coloured slide.

The four colour schemes give different trade-offs. Default and Vibrant use clearly distinct hues for separating several datasets. Pastel is gentler for slides with lots of other colour. Monochrome uses shades of slate, which suits formal reports and makes it obvious when a chart depends too heavily on colour.

The chart is drawn with the open-source Chart.js library and everything happens in your browser. The numbers you type are not uploaded, which matters when a report includes unreleased revenue, client budgets, or campaign results under NDA. Because nothing is saved between visits, export the image before closing the page, and keep your source numbers in the spreadsheet or analytics export they came from so the chart can be rebuilt next month.

Frequently Asked Questions

Common questions about the Chart Maker

You can create bar, horizontal bar, line, pie, doughnut and radar charts. Switch the Chart Type menu at any time and the same data table is redrawn in the new format, so you can quickly compare which view explains your campaign results most clearly.

Sources & References

Chart Design Guidance

Chart-type and axis recommendations follow established data-visualization practice: bars for comparing categories with a zero baseline, lines for ordered change over time, and pies only for a few parts of one whole.
→Source: Office for National Statistics - Data visualisation guidance(2024)

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