Free Random Test Data Generator
Generate realistic fake CSV or JSON data for testing and development. Define your columns, set the row count, download instantly. 100% browser-based. No signup.
Quick presets
Who uses Test Data Generator?
Real teams solving real problems — see if your use case is here.
QA Engineer
Software TestingBuilding automated tests for a new user import feature. Needs 10,000 realistic user records with name, email, phone, and country — without touching any real production data or risking GDPR exposure.
Defines 6 columns, sets 10,000 rows, downloads in 4 seconds. Uploads to staging environment. Zero compliance risk, test suite runs immediately.
Full-Stack Developer
Software EngineeringLocal development environment needs seed data to test UI rendering and pagination. Writing a faker script from scratch would take 30 minutes and isn't worth it for a one-off task.
Uses the 'Sales Records' preset, sets 500 rows, feeds the CSV into the seeder script. Environment is up and running in 2 minutes.
Database Administrator
Enterprise ITA new schema needs performance testing under realistic load conditions. Requires 500,000 rows with varied data distributions to stress-test indexes and query execution plans.
Generates 100,000 rows per batch with UUID, integer, date, and varchar columns. Runs 5 batches. 500,000 rows loaded in minutes — index issues caught before production.
Data Science Student
Education / ResearchMachine learning course project needs a realistic dataset for a binary classification task. Kaggle datasets are overused and recognisable — the professor wants original work.
Generates a 5,000-row customer churn dataset with custom columns. Splits into train and test CSVs. Submits a unique, credible project.
How to generate fake CSV test data
Choose a preset or define your columns
Start with a customer list, sales records, or employee directory preset — or define your own columns by choosing a name and data type. Supported types include names, emails, UUIDs, dates, countries, and more.
Set row count and format
Choose how many rows you need (10 to 100,000) and whether you want CSV or JSON output. CSV is great for spreadsheets and database imports. JSON is useful for APIs and frontend testing.
Generate and download
Click Generate. Your file is created instantly in the browser and downloaded automatically. No data is sent to any server.