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.
Next step
Charting a CSV export means the data already went stale.
Every refresh is another export, another upload, another chart. Connect the source itself to your AI agent with Sequel and ask for the chart against live data.
Ask your agent
“Chart weekly signups for the last quarter and call out the inflection points.”