About this visualization tool
Create box and whisker plots from CSV data. Visualize medians, quartiles (Q1/Q3), interquartile ranges (IQR), and statistical outliers with HD export.
RJB World Visualization Tools
Box Plot & Whisker Generator
Visualize five-number statistical summaries (Min, Q1, Median, Q3, Max) and detect outliers across groups. Import your CSV data to generate clean box and whisker diagrams.
Want the complete multi-format chart suite? Open Universal Data Visualization Studio
Upload your dataset
Drop your CSV, Excel (.xlsx/.xls), or JSON file here to visualize instantly
Or Paste CSV Data
Paste raw CSV or comma-separated rows below
Try Sample Datasets
Test chart features with 1-click sample data
Key Features & Capabilities
- •Automatic 5-number summary calculation (Minimum, Q1, Median, Q3, Maximum)
- •Interquartile Range (IQR = Q3 - Q1) whisker calculation
- •Statistical outlier detection highlighted as distinct red markers
- •Group comparisons across categorical grouping variables
- •Export publication-ready PNG and vector SVG diagrams
Frequently Asked Questions
What statistics are shown in the box plot?
The box shows the Interquartile Range (IQR between Q1 and Q3) with a white median line. Whiskers extend to 1.5x IQR, and dots outside whiskers represent statistical outliers.
Can I compare multiple categories side-by-side?
Yes, select a categorical grouping column to render side-by-side box plots for every category group.
Is it free to export high-resolution PNGs?
Yes, export HD (2x) and 4K (4x) PNG images or vector SVG files completely free.