Test data generator
Design a schema, pick how many rows you need, and download realistic sample data in one click. IBANs pass mod-97, card numbers pass Luhn — the details ChatGPT gets wrong when you ask it for a few thousand rows.
Schema
FAQ
How many rows can I generate?
Up to 50,000 per run during beta. It all happens in your browser, so large sets depend on your device.
Are the values realistic?
Names, emails and addresses are localized, and IBAN/credit-card/SIRET values carry valid checksums so they pass format validation in your app.
Do you store anything?
No. Generation is 100% client-side; nothing is uploaded.