Spin up realistic test data for your app, spreadsheet or demo. Pick your fields, set the row count, and export CSV or JSON in one click. Generated entirely on your device.
Generated locally with your browser’s crypto RNG, nothing is sent anywhere.
Mock Data Generator is a free, private browser tool by Digital Heroes that generates realistic fake test data instantly, with no signup. Choose from 15 field types including names, emails, phone numbers, addresses, job titles, and UUIDs. Set up to 500 rows, then export as CSV or JSON with one click. Because everything runs locally on your device, your data is never uploaded to any server and the tool works offline too.
Yes. Mock Data Generator is completely free for everyone, with no sign-up, no account, and no usage limits.
No. The tool runs entirely in your browser on your own device. Your data never leaves your computer and nothing is uploaded to a server.
Yes. Once the page has loaded it keeps working offline. You can also install it as an app from your browser for quick access.
No. Just open the page and start generating. No account, no install, no limits.
It generates realistic fake test data across up to 15 field types, such as names, emails, phones, and addresses. You can export the result as CSV or JSON for seeding databases, building demos, or writing tests.