Online statistics tool

Dot Plot Maker — Create Free Dot Plots Online

Name: Dot Plot Maker
Author: PaperBanana

Use Dot Plot Maker to turn a numeric list into a frequency dot plot. Compare two groups on one scale, count observations meeting a target, and export a chart for your lesson or report.

Two-group comparisonSVG & PNG exportNo account required

Your data

Numeric values

Separate values with commas, spaces or new lines. Up to 500 values, 6 decimal places, between −1 billion and 1 billion. Use a decimal point; 1,000 means two values.

Compare two groups

Compare two samples of the same measurement on a shared number line. Up to 500 observations in total.

CSV has a header row

Chart titleNumber-line labelMarkersValue grouping

Show meanShow median

Count values meeting a threshold

Data and imported files are processed in your browser. No account required.

Live dot plot

One mark = one observation

Count: 12
Mean: 3.833333
Median: 3.5
Mode: 3
Range: 6

Statistics are calculated from the original values, before binning.

CSV headers use this page’s language. Numeric cells use decimal points for spreadsheet compatibility.

Frequency

Value	Frequency
1	1
2	2
3	3
4	2
5	1
6	2
7	1

Understand the chart

What is a dot plot?

A frequency dot plot shows the distribution of one numeric variable. Each dot represents one observation. Values run along a number line, and repeated values stack vertically so you can see clusters, gaps, and unusually high or low values.

Use this dot plot maker for small datasets, classroom line plots, and exploratory measurement summaries. A scatter plot is a different chart: it compares two numeric variables using x–y pairs.

One variable

Enter a single list of numbers, such as counts, scores, or measurements.

Frequency through stacking

Three identical values produce three marks at the same numeric position.

Numeric spacing

Horizontal distances reflect differences between values, not row order.

Explore dot plot examples from classroom data

Try eight datasets: book counts, seedling heights, temperature changes, X marks, two-group comparison, equal-width bins, mean and median, or completion-time targets. Each preview matches the loaded data and settings.

Built for your task

Use frequency dot plots for lessons and reports

Show the observations behind a classroom score or a small measurement sample. Use the distribution, rather than only its average, to explain your findings.

Teacher and student reviewing a dot plot worksheet

Teach frequency with classroom line plots

Use books, pets, or classroom scores to explain frequency, mode, and range. Switch to X marks for familiar line-plot worksheets.

Researcher recording sample measurements in a laboratory

Compare small measurement samples

Plot decimal or negative measurements, or compare two samples of the same measurement on a shared scale. Inspect clusters, gaps, and each group’s mean and median before further analysis.

Analyst reviewing a dot plot for a report

Prepare a clear report figure

Add a title and axis units, check the frequency table, then export an SVG for editing or a PNG for your document.

A practical dot plot generator

Make dot plots from data and compare groups

Paste values from Excel or Google Sheets, choose exact values or bins, compare two distributions, and count observations meeting a target. Export the chart and the numbers behind it.

Turn a spreadsheet column into a dot plot

Use comma, space, or newline separators. Imported CSV files support an optional header. Invalid entries are shown so nothing disappears silently.

Use Dot Plot Maker with your data

Books read dot plot with twelve observations stacked at repeated values

Keep measurements exact or group dense values

Keep every distinct value by default. For dense measurements, choose equal-width intervals; statistics always use your original values.

Use Dot Plot Maker with your data

Seedling height dot plot with decimal measurements at exact numeric positions

Prepare X-mark line plots for worksheets

Create a classroom line plot with X marks, add mean and median guides, and download vector SVG, PNG, or a frequency table.

Use Dot Plot Maker with your data

Pets per household line plot with stacked X marks

Compare two samples without changing the scale

Paste two samples, name each group, and compare their distributions on identical number lines. Inspect each group’s count, mean, median, mode, and range, plus the B − A mean and median differences. Both groups export together in one SVG or PNG.

Use Dot Plot Maker with your data

Two frequency dot plots with identical scales and separate group labels

Report how many values meet your target

Set an inclusive ≥ or ≤ threshold to find how many observations meet a target, such as a passing score. See each group’s matching count and percentage. Counts use original values even with bins; download them with group statistics as a summary CSV.

Use Dot Plot Maker with your data

Dot plot with a threshold guide and raw-data target counts

Check before you share

Check dot plot counts, mean and median

Reconcile every mark with the frequency table. Counts, mean, median, mode, range, and threshold percentages are calculated from raw observations, including when you display equal-width bins.

No silently discarded values

Invalid tokens block the chart and exports until corrected. The tool supports up to 500 observations and 80 distinct plot positions.

Grouping stays visible

Exact values remain exact. Bins start at multiples of the selected width, include their lower boundary, and exclude their upper boundary.

Statistics use the raw sample

Mean, median, mode, and range are calculated before binning. All tied modes are reported; a sample with no repeated values has no mode.

Input values reconciled with six dots and a frequency table — 1, 2, 2, 3, 3, 3 → 6 observations → frequencies 1, 2, 3Check every observation

Less setup, more clarity

Keep individual values visible in small samples

Inspect a small sample without installing software. Keep its observations visible, then reuse the chart in a worksheet, slide or report.

No signup

Start immediately

The example is ready to edit. No account or software installation is required.

One mark per value

Keep individual observations visible

For a small sample, stacked marks show the distribution without replacing every observation with a bar.

Reusable exports

Bring the figure into your work

Use vector SVG in an editor, PNG in a slide, or CSV to inspect the plotted frequencies.

Three simple steps

How to make a dot plot from Excel or CSV data

Copy one numeric spreadsheet column or import a single-column CSV. Choose the view, review the counts, then download the figure and its data.

Paste numbers or import a CSV

Paste your first list or import a single-column CSV. For a comparison, enable two groups, name them, and paste or import a second list. The total limit is 500 observations.

Set labels, markers and bins

Add labels, choose dots or X marks, and keep exact values or set bins. Optional mean, median, and threshold guides apply to both groups.

Check your dot plot and export

Review each group’s statistics, B − A differences, and threshold counts. Export the combined chart, frequency or summary CSV; save JSON to restore your data and settings.

Open Dot Plot Maker

Workflow from a number list to a stacked dot plot and export — Enter data → inspect the distribution → download the chart

Choose the right chart

Which chart should you use for your data?

Use scatter plots for relationships, box plots for distributions, heatmaps for matrices, and forest plots for effect estimates with confidence intervals.

Scatter plot relating study hours to exam scores

Scatter Plot Maker

Compare two numeric variables and inspect their relationship using x–y pairs.

Box plot showing the spread of a numeric distribution

Box Plot Maker

Summarize a distribution with the median, quartiles, and outliers.

Heatmap comparing numeric values in a five-row, four-column matrix

Heatmap Generator

Compare values across a labeled data matrix using a color scale.

Forest plot showing four study estimates, confidence intervals, and a pooled effect

Forest Plot Maker

Compare study effect estimates and confidence intervals, with an optional pooled result.

Dot plot questions

Dot Plot Maker FAQ: data, X marks and downloads

How do I make a dot plot or a line plot with X marks?+

Paste one numeric list into the data field to create a frequency dot plot. Each observation gets one mark; repeated values stack at the same position. Choose X marks for a classroom line plot, then add a title and number-line label before reviewing the counts.

Can I paste Excel data or import decimals and negative values?+

Copy a single numeric column from Excel or Google Sheets, or import a one-column CSV or TXT file with an optional header. The tool accepts up to 500 observations, six decimal places, and values within ±1 billion. Use a decimal point; multi-column CSV and XLSX workbooks are unsupported.

What changes when I use equal-width bins?+

Binning groups observations into equal-width intervals anchored at zero. Each interval includes its lower boundary and excludes its upper boundary, with marks stacked at the lower boundary. Every mark still represents one observation. Mean, median, mode, range, and threshold counts continue to use the original values.

Can a dot plot compare two groups on the same scale?+

Enable Compare two groups and enter a second sample of the same measurement. Both charts share the numeric scale and bin width, while statistics remain separate. Mean and median differences are B minus A. These are descriptive comparisons; the tool neither matches individual pairs nor runs a significance test.

How does the dot plot maker count values above or below a target?+

Choose At or above (≥) or At or below (≤) and enter a threshold. Values equal to the threshold are included. Each group shows the matching count and percentage from raw observations before binning. Export these results, the threshold condition, and group statistics together as a summary CSV.

Can I download SVG, PNG and CSV without an account?+

Create and export charts without signing up. Download a vector SVG for editing, a PNG for slides or documents, a frequency CSV, or a statistical summary CSV. Save data and settings as JSON to reopen both groups, labels, markers, bins, and threshold settings for later work.

Does Dot Plot Maker upload my data or use an AI model?+

Dot Plot Maker processes numeric input and imported files locally in your browser. Creating a chart does not upload the sample to a server or send it to an AI model. Use the JSON download to keep your own copy of the data and settings for later editing.

How is a frequency dot plot different from a histogram or scatter plot?+

A frequency dot plot shows individual observations of one numeric variable; a histogram summarizes observations as interval counts. A scatter plot uses x–y pairs to examine two variables. This tool creates frequency dot plots, including optional bins, rather than gene-expression bubble plots, DNA similarity diagrams, or paired category charts.

Make the distribution visible

Use Dot Plot Maker for your next lesson or report

Paste your numbers, compare two groups or check a target, and download the figure with its frequency table or statistical summary. No account required.

Create with Dot Plot Maker