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Bulk fake test-data builder

Build thousands of fake rows for tests and fixtures — pick the columns, lock a seed, export JSON, JSONL, or CSV, all in a worker.

Columns
4/16 selected · presets swap the set
Build options
1–5,000 rows · seed 1–2,147,483,647
What this is not
  • Non-payment test data only — the column registry has no card, IBAN, or payment field, and this wave ships no payment generator at all.
  • Emails use reserved example domains; postcodes and phones are pattern draws checked against no registry.
  • Output never persists and never leaves the tab — the build runs in a local worker and renders as text.
Nothing in yet

Paste, drop, or type to begin. Everything stays on this device.

pick columns, then Build