Box and Whisker Plot Generator

A box and whisker plot (also called a box plot) is a chart that summarizes a dataset's distribution using five key statistics: minimum, first quartile (Q1), median, third quartile (Q3), and maximum. The 'box' spans Q1 to Q3, the line inside the box marks the median, and the 'whiskers' extend to the data's range or to the furthest non-outlier value. Outliers are plotted individually beyond the whiskers.

Select 'Raw values' mode and paste your numbers one per line — the generator calculates all five summary statistics for you. Alternatively, switch to 'Manual summary statistics' mode and type in your own Q1, median, Q3, min, and max values. Then customize colors, orientation, and labels, and download or share your chart.

Yes. Click '+ Add category' to add as many groups as you need. Each group gets its own data input, color selector, and label. All groups are rendered side-by-side on the same chart, making it easy to visually compare distributions across categories.

You can choose between two whisker types: Tukey (1.5 × IQR), which is the standard method used in most statistical software and extends whiskers to the furthest data point within 1.5 times the interquartile range; or Min/Max, which simply extends whiskers to the dataset's minimum and maximum values. Data points beyond the Tukey whiskers are shown as individual outlier dots.

Yes. When using raw value mode with Tukey whiskers, any data point beyond 1.5×IQR from Q1 or Q3 is automatically detected and plotted as an individual point. You can also manually enter outlier values in summary statistics mode. The 'Show outliers' toggle in Display Settings lets you hide them if needed.

The median is the middle value of your dataset and is always shown as the center line of the box. The mean is the arithmetic average, which can be significantly different in skewed distributions. You can enable the 'Show mean marker' option to display the mean as an additional symbol on your box plot, making skewness immediately visible.

Yes. In the Display Settings panel, set Orientation to 'Horizontal.' This is useful when your category labels are long, when you are comparing many groups, or when your presentation layout works better with a wide chart.

Yes — generating, customizing, and downloading box plots is free with no signup required. Free accounts also include limited AI credits to describe your data and get a box plot generated automatically. Paid plans unlock more AI credits, file upload, and embed codes.

You can export your box and whisker plot as a PNG (ideal for presentations, documents, and social media) or as an SVG (perfect for print, publications, and scaling to any size without quality loss). Pro users can also get an embed code to add the chart to any website.

Yes. Use the AI prompt input to describe your dataset or analysis goal — for example, 'compare delivery times across four shipping carriers.' The AI will structure the chart, set up groups, and fill in example data you can replace with your own. Free accounts include AI credits to try this feature.