Class scores
Forty-eight fictional scores. Each dot represents one student; stacked dots show repeated scores.
Use this example ↗Sample CSV ↓FREE ONLINE DOT PLOT GENERATOR
Dot plot maker.
Turn a list of numbers into a clear picture. Paste your values, make it yours, and take a finished chart with you.
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DOT PLOT STUDIO
Private by design. Data stays here.Observations48
Mean77.833333
Median80
Range48
Hover a dot to inspect its value.
Inspect the frequency table
| Value | Frequency | Share of observations |
|---|---|---|
| 52 | 1 | 2.083333% |
| 56 | 1 | 2.083333% |
| 60 | 2 | 4.166667% |
| 64 | 3 | 6.25% |
| 68 | 4 | 8.333333% |
| 72 | 5 | 10.416667% |
| 76 | 7 | 14.583333% |
| 80 | 8 | 16.666667% |
| 84 | 6 | 12.5% |
| 88 | 5 | 10.416667% |
| 92 | 3 | 6.25% |
| 96 | 2 | 4.166667% |
| 100 | 1 | 2.083333% |
EXAMPLE GALLERY
Start with a finished example.
Original examples with fictional data.
The starting point is yours to change.
Delivery times
Fourteen fictional deliveries. The seven-day delivery stays visible instead of being removed as an outlier.
Use this example ↗Sample CSV ↓Books read
Twelve fictional readers. Zero is a real observation here; it is different from an empty cell.
Use this example ↗Sample CSV ↓THE IDEA BEHIND THE CHART
What is a dot plot?
A frequency dot plot places one dot above a number line for each observation. Repeated values stack vertically, so you can see which values occur most often while keeping every observation visible.
Use a dot plot for a small numeric dataset: class scores, counts, waiting times or measurements. Unlike a histogram, it does not group your values into bins. This tool makes frequency dot plots, rather than Cleveland dot plots for comparing categories.
How we handle data & calculations ↗FROM DATA TO DOWNLOAD01 02 03
Bring a few numbers
Type a list, paste spreadsheet cells, or import CSV or Excel. Choose your numeric column in the preview.
Give them context
Add a title and axis label, choose a color, and optionally show the mean. Check the frequency table for exact values.
Take your chart with you
Download a high-resolution PNG for slides or an editable SVG for design tools. The data is also available as CSV.
Is this dot plot maker free?+
Yes. Create and download dot plots without an account, payment, or watermark. PNG, SVG, PDF and CSV downloads are included.
What data can I paste or upload?+
Paste a list of numbers or cells copied from Excel or Google Sheets. You can also import CSV, TSV, TXT or XLSX files, select a sheet, and choose the column to plot. The chart supports up to 300 observations.
Does my data leave my browser?+
No. File reading, chart calculations and downloads happen on your device. There is no cloud saving; refreshing the page resets your edits. Download the CSV if you want to reuse the values later.
What happens to missing values?+
An empty or invalid value in your selected data is flagged for correction. It is not replaced with zero. Outliers and duplicate values are retained; duplicates form stacks.
How are the mean and median calculated?+
The mean is the sum of the observations divided by their count. The median is the middle sorted observation; for an even count it is the average of the two middle observations. The range is the maximum minus the minimum.
When should I use a different chart?+
A dense set of measurements may be easier to read as a histogram. To compare two numeric variables, use a scatter plot. For category totals, a bar chart is usually more suitable. This tool preserves values rather than rounding them into groups.
Worked examples with data
All dot plot examples →
DOT PLOT · WORKED EXAMPLE
Dot plot example with class quiz scores
A stacked dot plot places one dot for each observation above its numeric value. This example shows all 16 fictional quiz scores on a ten-point scale, so repeated scores are visible as taller stacks.
Editable chart + original data
DOT PLOT · WORKED EXAMPLE
Dot plot mean and median: a worked example
A dot plot can show the observations behind the mean and median. In this eight-person fictional reading example, the values are 0, 1, 1, 2, 2, 2, 3 and 5 books: both the mean and median are 2.
Editable chart + original data
DOT PLOT · WORKED EXAMPLE
Dot plot with an outlier: waiting-time example
A dot plot keeps an unusually large observation visible beside the rest of a dataset. Here nine fictional waits lie between 2 and 6 minutes, while one wait lasts 24 minutes. All ten observations remain in the chart.
Editable chart + original data