Mockaroo

Mockaroo generates realistic mock data in CSV, JSON, SQL, and Excel formats with a huge library of field types.

Overview

Mockaroo is the standard tool for synthetic test data. Design a schema with over 200 field types — names, addresses, emails, dates, custom formulas — and generate up to a million rows of realistic data in the format your system expects. It can generate scripts, mock REST APIs for prototyping, and save schemas for repeatable datasets. Developers use it to populate test environments without exposing production data.

Mockaroo’s field system is impressively deep: realistic addresses, industry-specific values, custom formulas, and nested structures cover most schema needs. The mock API feature doubles as a backend substitute during frontend development, serving generated data over REST endpoints.

Key Features

• 200+ realistic field types including custom formulas
• CSV, JSON, SQL, Excel, and XML export formats
• Mock REST API endpoints for prototyping
• Saved schemas for repeatable dataset generation
• Nested arrays and objects for complex structures
• Bulk generation of up to millions of rows

QA teams standardize on Mockaroo datasets for regression fixtures, while developers use mock APIs to build frontends before backends exist. The breadth of realistic field types keeps test data believable enough to catch real bugs.

Pricing

Mockaroo is free for limited row counts and saved schemas. Paid plans raise generation limits and add team features.

Who Is It For

Developers, QA engineers, and data teams who need realistic test data quickly and safely.

FAQ

Is Mockaroo free to use?

Yes, with generation limits; paid plans increase volumes and saved schema counts.

Does Mockaroo offer an API?

Yes, Mockaroo can both generate data via API and serve mock APIs for application prototyping.

How does Mockaroo compare to alternatives?

Faker libraries require scripting; Mockaroo provides a visual designer, more field types, and direct mock API hosting.

Can I define custom field types?

Yes, custom formulas and field definitions cover data shapes the built-in types don’t.

How large can datasets be?

Paid plans generate up to millions of rows per export in the format you choose.

Can I save schemas?

Yes, saved schemas regenerate identical-shaped datasets whenever needed.

Does Mockaroo support nested JSON?

Yes, arrays and nested objects are supported for complex data structures.

Is Mockaroo suitable for GDPR compliance?

Synthetic data helps avoid exposing real personal data in test environments.

Can I generate SQL inserts?

Yes, SQL export produces insert scripts ready for database seeding.