Fields
Export format
Output
Fields
Export format
Output
Fake Data Generator
Generate names, emails, addresses, and more with locale-aware Faker. Export as JSON, CSV, or SQL INSERT statements. Large batches run in a Web Worker.
Fake Data Generator Use Cases
- Seed integration tests and staging databases
- Demo apps without exposing real customer data
- Prototype CSV imports and ETL pipelines
- Share reproducible samples with teammates
Fake Data Generator FAQ
Is data truly random?
Values are produced with Faker and Web Crypto–backed randomness where applicable. Use only for testing — never as real PII.
When does generation use a worker?
Very large row counts or estimated output over ~500KB are generated off the main thread so the page stays responsive.
Which export formats are supported?
JSON array of objects, CSV with a header row, or SQL INSERT into a table name you choose.
Does my data leave the browser?
No. Everything runs locally; fmtly does not send your input or output to a server.