SQL Generator
Generate realistic test data in SQL format.
1 Choose Fields
2 Selected Fields
3 Configure & Generate
max 1,000,000 records
Saved Schemas
Output
How to Generate SQL Test Data
- Choose your fields — pick from 30+ types like name, email, UUID, date, or address.
- Set record count — generate anywhere from 1 to 1,000,000 records.
- Pick a format — export as JSON, CSV, or SQL insert statements.
- Generate and copy or download — data is created instantly in your browser.
Supported Field Types
| Category | Field Types |
|---|---|
| Identity | Full name, first/last name, username, UUID, avatar URL |
| Contact | Email, phone number, address, city, country, zip code |
| Business | Company name, job title, department, salary |
| Dates & numbers | Date, timestamp, integer, decimal, boolean |
| Custom | Custom enum/list, nested objects, arrays |
Common Use Cases
Mocking API responses
Build and test frontend components against realistic JSON before your backend endpoints exist.
Seeding a test database
Export as SQL insert statements to populate development or staging databases in seconds.
Frontend development without a backend
Prototype UI and layouts using realistic data shapes before any API integration is ready.
QA and load testing
Generate up to a million records to stress-test forms, imports, and data pipelines.
Dummy JSON Generator vs. Other Tools
| Feature | Dummy JSON Generator | Typical Alternatives |
|---|---|---|
| Signup required | No | Often required for exports over a few hundred rows |
| Output formats | JSON, CSV, SQL | Varies, often JSON-only on free tiers |
| Max records (free) | Up to 1,000,000 | Often capped at 100–1,000 |
| Processing | Runs in your browser | Often server-side |
Frequently Asked Questions
Is this JSON generator free?
Yes, generating JSON, CSV, and SQL test data is completely free with no signup required.
Can I generate nested JSON objects and arrays?
Yes, you can define nested objects and arrays alongside flat fields in the same schema.
Does my data get sent to a server?
No, all generation happens locally in your browser. Nothing is uploaded or stored.
What's the maximum number of records I can generate?
You can generate up to 1,000,000 records per batch, free of charge.
Can I export to CSV or SQL instead of JSON?
Yes, the same schema can be exported as JSON, CSV, or ready-to-run SQL insert statements.