Can I customise the schema for generated data?

Yes. The JSON and CSV data generators accept a custom schema defining field names, types, and constraints so you can generate data that matches your application's structure.

Is the generated data realistic?

Yes. The fake data generator uses locale-aware name, address, email, and phone number generation to produce believable realistic data rather than random strings.

How many records can I generate?

You can generate thousands of records. Performance depends on your browser, but the tools handle large datasets well for most testing needs.

Generate Test Data Online Free

Realistic test data is essential for manual QA, database seeding, load testing, UI demos, and automated test fixtures. devtoolkit.sh provides a suite of test data generators that run entirely in your browser. Generate fake person records with realistic names, emails, addresses, and phone numbers. Create JSON datasets with a custom schema and any number of records for API testing or mock server responses. Export test data as CSV for importing into databases, spreadsheets, or test fixtures. Generate random names from different cultures and demographics for internationalisation testing. All generators are free, require no signup, and produce data that never touches a server.

#Fake Data Generator

Generate rows of realistic fake data with configurable columns.

#JSON Data Generator

Define a schema and generate an array of JSON objects.

#CSV Data Generator

Generate random CSV data with custom columns and types.

#Random Name Generator

Generate random full names with gender and count options.

FAQ

Can I customise the schema for generated data?: Yes. The JSON and CSV data generators accept a custom schema defining field names, types, and constraints so you can generate data that matches your application's structure.
Is the generated data realistic?: Yes. The fake data generator uses locale-aware name, address, email, and phone number generation to produce believable realistic data rather than random strings.
How many records can I generate?: You can generate thousands of records. Performance depends on your browser, but the tools handle large datasets well for most testing needs.