Visualize JSON Data Graph

Turn JSON arrays into bar, line, or pie charts with a live visual preview.

JSON → Bar • Line • Pie

JSON Input
Paste an array of objects containing labels and numeric values.

Live Graph

Choose a visualization and preview parsed JSON data.

Parse JSON and select fields to visualize the data.

How JSON data visualization works

Paste a JSON array of objects, parse the data, then choose one field for labels and one numeric field for values.

Every plotted row must already contain a valid finite numeric value in the selected value field. Pie charts also require non-negative values with a positive total.

The graph updates from the selected fields and can be displayed as a bar chart, line chart, or pie chart.

JSON visualization example

[
  { "month": "Jan", "sales": 30 },
  { "month": "Feb", "sales": 45 },
  { "month": "Mar", "sales": 28 }
]
Choose month as the label field and sales as the value field.

Frequently Asked Questions

What JSON format is supported?

The input must be a JSON array containing one or more objects.

Which fields can be graphed?

Any finite numeric field can be selected as the chart value, but every plotted row must contain a valid finite number in that field.

Can I choose different label fields?

Yes. String, number, and boolean fields can be used as labels.

Which chart types are available?

Bar, line, and pie charts are included.

Can I export the graph?

Yes. Download SVG exports the current visualization as an SVG image.

Does switching chart type keep stale output?

No. switchMode(newMode) updates the active visualization immediately and clears transient state.

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