Free · Choose every test column

Custom Fake Dataset Generator

Name your columns, pick simple fake field types, and create a repeatable JSON or CSV dataset.

Instant results
Private in your browser
No signup or limits

Make safe sample data

Choose the shape, locale, and size. The same seed always makes the same sample.

Rows1 to 500LocaleSeedSame seed, same dataCurrency

Columns and field typesTypes: uuid, fullName, firstName, lastName, email, phone, company, address, city, country, jobTitle, product, price, integer, boolean, date, url, username, paragraph, color, vin, isbn

Result view

PreviewJSONCSV

Making sample dataThis stays in your browser.

Rows0

Fields0

Seed20260812

LocaleEnglish, Canada

Three simple steps

How to use it

Write one column and field type on each line.
Use the field guide below the schema box.
Fix any unknown field type, then copy or download the data.

Your data stays on this device

These tools run in your browser. Bookify does not upload, store, or inspect the values you enter. Close the tab and the working data is gone.