Mock Data Generator
Generate realistic mock data online for testing APIs, seeding databases, or prototypes. Free tool exporting to JSON or CSV — no sign-up needed.
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Frequently asked questions
What is Mock Data Generator?+
Generate realistic mock data for testing APIs, seeding databases, or populating UI prototypes — entirely in your browser.
How do I use Mock Data Generator?+
Pick exactly which fields you need: names, emails, addresses, UUIDs, and more. Generate up to 100 rows at once and export as JSON or CSV. Powered by the industry-standard faker.js library, loaded locally — nothing is sent to a server. Copy the output directly into Postman, your database seed script, or your test fixtures
Is Mock Data Generator free?+
Yes, Mock Data Generator is completely free. No account or sign-up required, and all processing happens in your browser — nothing is sent to a server.
Is my data safe when I use Mock Data Generator?+
Yes. Mock Data Generator runs entirely in your browser using JavaScript and Web APIs — your input is never uploaded, transmitted, or stored on any server.