01_FREE_FAKE_DATA
Free Fake Data Generator for Developers
Create realistic users, companies, emails, addresses, and IDs for demos, QA, fixtures, and local development.
No signup for previews
Seeded deterministic output
JSON, CSV, SQL, XML export paths
Live Generator
Seed 4242 | 5 rows | JSON
{
"id": "id.row",
"first_name": "name.firstName",
"last_name": "name.lastName",
"email": {
"type": "contact.email",
"reference": "first_name"
},
"company": "business.companyName",
"created_at": "datetime.datetime"
}No AI. No model training.
DerpData uses deterministic rules and Markov models, not LLM calls. Same seed and schema can reproduce the same fixture for tests, demos, and CI.