Japanese

Chart Image Maker

IMAGE Save bar, line, and pie charts as images
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How to use Chart Image Maker
Choose the chart type. Enter labels and numeric values.
PREVIEWPNG output
Chart settings
Type
Title
X-axis label
Y-axis label
CSV import
The first column is used as labels and the second column as values. If the first row is a header, it is skipped automatically and reflected in the X-axis and Y-axis labels.
Labels
Values
Color and text settings
Primary color
Secondary color
Custom colors (optional)
Added colors appear as chips. Drag to reorder them, or remove individual colors with ×. Added colors are prioritized for pie charts and multi-series bars.
Title text
Axis and legend text
Data label text
Size
Width1000px
Height600px
Preview zoom
The saved image uses the width and height above. Preview zoom only affects the preview.
Enter the same number of label and value rows.

What this tool does

Create bar, line, and pie charts from entered data in your browser, and save the chart as a PNG image.

Illustration explaining how Chart Image Maker works

How to use it

  1. Choose the chart type.
  2. Enter labels and numeric values.
  3. Adjust the display and preview the chart.
  4. Download the chart as a PNG image.

Supported input and notes

Keep the input structure consistent so the chart renders correctly. Check labels, units, and numeric values before exporting.

When it is useful

Useful for reports, blog posts, slides, and simple visual summaries.

Chart Types

You can create bar, line, pie, and doughnut charts. Bar charts are useful for comparing items, line charts for changes over a sequence, and pie or doughnut charts for showing proportions.

Labels and Values

The label list and the value list are read line by line. If the counts do not match, or a value cannot be read as a number, the chart cannot be generated.

CSV and TXT Import

When a CSV or TXT file is loaded, the first column is used as labels and the second column as values. If the first row looks like a header, it is excluded from the plotted data and used for axis labels.

Number Parsing

The parser removes commas, full-width numerals, percent signs, and currency symbols, so values such as “1,200”, “１２００”, “$1,200”, and “€1,200” can still be interpreted as numbers. A value such as “25%” is treated as the number 25, not 0.25.

Colors and Text Size

You can use main and secondary colors, add custom colors, and adjust the text size for the title, axes or legend, and numeric labels.

Preview Zoom vs Export Size

The exported image size is set with width and height controls from 600–1600px wide and 400–1000px high. The preview zoom only changes how the chart is shown on screen.

PNG Export

The finished chart is saved as a PNG image. Direct export to JPG or SVG is not available.

FAQ

Can I create a multi-series chart?

No. The current tool uses one label list and one value list, so it creates a single-series chart.

How many CSV columns are used?

Normally the first column is used for labels and the second column for values.

Does changing the preview zoom change the saved image size?

No. The export size is controlled by the width and height settings.

Which file format is used for export?

PNG only.