Bubble Chart CSV Data Visualizer
Create a bubble chart from CSV data online. A scatter plot with bubble size as a third data dimension. Upload your CSV and export as PNG or SVG.
CSV to Bubble Chart — Free Online Tool
A bubble chart is a scatter plot where a third numeric dimension is encoded as the size of each point (bubble). This lets you visualize three variables at once — for example, X = revenue, Y = margin, size = customer count.
Select X and Y numeric columns, and optionally a Size column. The size values are scaled to a reasonable bubble radius range. If no size column is selected, all bubbles are the same size (equivalent to a scatter plot).
Frequently asked questions
How are bubble sizes scaled?
Size column values are linearly scaled to a radius range of 6–60 pixels. Very large or very small raw values are clamped to keep bubbles readable.
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