Sample data generator
Make a fictional dataset with the rows, columns and format you need. It runs in your browser: nothing is uploaded, and the same seed always gives the same rows.
Preview, first 12 rowspoint at a column to light it up
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How the generator works
- Each dataset type has fixed rules: an order's sales equal quantity × price × (1 − discount), a student's letter grade follows their average, a bank balance is the running total.
- Rows come from a seeded random number generator, so a seed is a recipe: seed 42 rebuilds the exact files on our dataset pages, and any other seed gives a new repeatable set.
- Row 1 never depends on how many rows you ask for, so 100 rows are the first 100 of the 1,000-row file.
- Names come from common U.S. first names and surnames, picked at random; emails use example.com and phone numbers use the 555-01xx range set aside for fiction.