Box Plot Graph Maker

A box plot (also called a box and whisker plot) is a standardized chart that summarizes a dataset using five key statistics: minimum, Q1 (25th percentile), median, Q3 (75th percentile), and maximum. The box spans the interquartile range (IQR), the line inside marks the median, and whiskers extend to the furthest non-outlier values. It is ideal for comparing distributions across groups.

Enter your data by pasting raw values (one per line) or switching to manual mode to enter pre-calculated statistics. The chart updates instantly. Then customize colors, orientation, and labels, and export or share when ready.

Yes. The box plot graph maker is completely free to use with no sign-up required. You can create, customize, and download box plots at no cost. Upgrade to a paid plan for AI chart generation credits, file upload, and advanced export options.

Tukey whiskers extend to the furthest data point within 1.5 × IQR beyond Q1 and Q3, and any points outside that range are marked as outliers. Min/max whiskers simply extend to the absolute smallest and largest values, showing no outliers separately. Tukey is standard in statistical analysis; min/max is simpler for exploratory views.

Yes. Click '+ Add category' to add as many groups as you need, each with its own color and label. The chart renders all groups side by side so you can compare their distributions, medians, and spread instantly.

Describe your data or scenario in plain language — for example, 'Compare test scores for three classrooms' — and the AI creates a fully configured box plot with realistic sample data. You can then swap in your real numbers and adjust the chart as needed.

Yes. Toggle 'Show mean marker' in the Display Settings panel to overlay a mean indicator on each box. This helps viewers see whether the distribution is symmetric or skewed by comparing the mean to the median line.

You can download your box plot as a high-resolution PNG for use in documents, slides, and social media, or as an SVG for fully scalable vector graphics. SVG export is available on paid plans.

No. A histogram shows the frequency of values across bins and reveals the shape of the distribution in detail. A box plot summarizes the distribution using five statistics and is better suited for comparing multiple groups side by side. Box plots are more compact; histograms show more granular shape.

Not if you use raw values mode. Paste or type your data points and the tool calculates Q1, median, Q3, IQR, and whisker endpoints automatically. If you already have summary statistics from another tool, use manual summary mode to enter them directly.