Box Plot Generator

Compare groups at a glance: quartiles, median and outliers from any table, in your browser.

Your data never leaves this browser

The file is parsed, previewed and charted on your own device. Nothing is uploaded — not even a sample. Close the tab and the data is gone.

Or paste table text

Load a table with a group column and a numeric column, then click Generate chart.

How it works

  1. 1.Load a CSV or Excel table that has one row per observation: which group it belongs to, and the number you measured.
  2. 2.Pick the group column (line, team, supplier) and the value column. Blank group names and non-numeric values are skipped and counted.
  3. 3.Click Generate chart — each box shows the quartiles and median of that group, and values beyond 1.5×IQR are drawn as separate dots.
  4. 4.Download the PNG. Compare the boxes side by side: a taller box means a less consistent group, and the dots tell you where the exceptions are.

Frequently asked questions

Do I get free credits to try Box Plot Generator?
Yes — new accounts get 3 free credits to spend on any tool, Box Plot Generator included. After that you only pay for what you run.
How many credits does Box Plot Generator cost?
Everything runs in your browser and nothing is uploaded: free accounts pay 1 credit per run, and Pro or Pro+ members run it as often as they like.
Is the content I paste private?
Box Plot Generator uses your input only to generate the result. Stored results are deleted automatically by our retention policy, and you can remove any run from your history.
Do I need to install anything?
No. Box Plot Generator works in any modern browser — nothing to download or install.