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Histogram Maker

Bin pasted numbers into a histogram with automatic or custom bin counts.

Build a histogram

Values: 0
Bins: —
Bin width: —
Mean: —
Sturges' rule picks the bin count unless you type your own, and the bins are counted locally.

How to use the Histogram Maker

  1. Paste your numbers, one value per line.
  2. Leave the bin count at zero or type the number of bins you want.
  3. Click Draw chart to bin the values and draw the frequencies.

Features

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Frequently Asked Questions

Common questions about the free online histogram maker.

Paste one number per line and click Draw chart. The values are grouped into bins and the frequency of each bin is drawn as a bar.
Leave the box at zero and Sturges' rule picks a sensible count. You can also type any number between 1 and 60 yourself.
It sets the bin count from the number of values using the base two logarithm, which suits small and medium sized data sets.
Yes. Numbers may be separated by spaces, commas, semicolons or line breaks, and anything that is not a number is ignored.
Every bin has the same width, calculated from the smallest and largest value divided by the bin count. Only edge labels may be rounded.
No. The values are binned and drawn locally in your browser, so nothing is ever sent anywhere.
Yes. The histogram is redrawn to fit the screen width and works in any modern mobile browser.
Yes. It is completely free with no account, no sign-up and no limit on the number of charts.

Last updated: October 10, 2026