Generate realistic
JSON test data
in seconds.
Dummy JSON Generator lets developers create structured fake data in JSON, CSV, and SQL formats. 30+ field types, up to 1M records, zero config.
[
{
"id": 4821,
"fullName": "Jennifer Martinez",
"email": "jennifer94@gmail.com",
"city": "San Francisco",
"status": "active",
"createdAt": "2024-03-15T08:22:11.000Z"
},
{
"id": 7203,
"fullName": "David Johnson",
"email": "david42@outlook.com",
"city": "New York",
"status": "pending",
"createdAt": "2024-07-02T14:55:43.000Z"
}
]Everything you need for test data
Built for developers who need realistic mock data fast, without complex setup.
JSON, CSV & SQL Export
Export your generated data in the format your project needs. Switch formats with one click.
Save Schemas
Name and save your field configurations. Reload any schema instantly from your browser.
Up to 1M Records
Generate from 10 to 1,000,000 records. Bulk data for load testing or seeding databases.
30+ Field Types
Names, emails, UUIDs, dates, prices, coordinates, IPs, colors, and much more.
Copy & Download
Copy output to clipboard instantly or download as a file. Works offline in your browser.
Free Forever
No signup, no API key, no rate limits. 100% client-side — your data never leaves your browser.
How it works
Three steps from zero to data.
Choose Your Fields
Pick from 30+ field types across 8 categories. Click to add, drag to reorder.
Configure Output
Set record count, choose JSON / CSV / SQL format, and pick your indent style.
Generate & Export
Hit generate and copy to clipboard or download the file instantly.