Test Data Generator

Create realistic test datasets in seconds.

Test Data Generator is a minimalist Python tool that produces clean, repeatable datasets for QA, demos, and development. Generate thousands of rows of realistic records and export them to CSV or JSON using a simple schema and a few options.

What it does

• Generates test data for common fields: names, emails, phones, addresses, dates, IDs, prices, statuses, and more

• Supports schema-driven generation so your output matches your table or API shape

• Exports to CSV and JSON

• Includes seeded randomness for repeatable results across runs

• Adds optional rules like:

  • uniqueness constraints

  • min/max ranges

  • enum lists

  • nullable fields

  • weighted distributions

Best for

• QA engineers building test plans

• Developers creating demo data quickly

• Teams needing consistent sample datasets for staging and local testing

Inputs

• A simple schema file (JSON/YAML) describing fields and types

• Optional flags: number of rows, output format, seed, locale, null rate

Outputs

• data.csv or data.json

• Optional schema.example.json templates to start fast

Typical usage

1. Create or pick a schema

2. Choose rows count and output format

3. Generate and use in DB imports, tests, or demos

Requirements

• Python 3.9+

• Works offline (no API required)

Delivery

Downloadable ZIP from arzad: script + sample schemas + README with examples.

License

Personal and internal business use. Redistribution/resale as a competing product is not permitted unless you have an extended license.