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SPECIFICTION
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Mockaroo

mockaroo.com

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Spec score 7.9 #7 of 28 in Test Data Generation Tools

What it is

Mockaroo is a web-based synthetic data generator for developers and testers who need realistic test records or a mock back end while building a user interface. It offers more than 100 built-in data types; users can also upload reference data or define types with the formula API. The Generate API produces JSON, CSV, tab-separated or custom-delimited text, SQL, and XML. Mock APIs can connect request parameters to schemas and return dynamic or static data, or simulate errors. Both APIs require an API key, sent as a query parameter or an X-API-Key header. Free includes 1,000 rows per file and 200 API requests per day. Silver is $60 a year and allows 100,000 rows per file and 1 million API records per day; Gold is $500 a year and allows 10 million rows per file and 10 million API records per day. Synchronous API responses are limited to 5,000 records on every plan; background generation requires a paid plan. Enterprise is $7,500 a year, with unlimited data and users and Docker deployment in a private cloud or datacenter.

Spec sheet

Purpose
Mockaroo generates realistic test data and can create mock back-end APIs for UI development.Read 2 Oct 2026 · mockaroo.com
Intended users
Mockaroo describes its use for developers and testers who need realistic test data, and for front-end developers working before a back end is ready.Read 2 Oct 2026 · mockaroo.com
Deployment
Mockaroo Enterprise is distributed as a Docker image for deployment in a private cloud or datacenter.Read 2 Oct 2026 · mockaroo.com
Integrations
The API documentation identifies an officially supported Node.js client and lists C# client libraries mockaroo.api and NMockaroo.Read 2 Oct 2026 · mockaroo.com
Security
Mockaroo's privacy policy says sensitive information submitted through the site is encrypted in transit and that access to personal information is limited to employees who need it for their jobs.Read 2 Oct 2026 · mockaroo.com
Support
Mockaroo directs users with questions to its Community Forum so answers can benefit everyone.Read 2 Oct 2026 · mockaroo.com
API authentication
Both Mockaroo APIs require an API key passed as a query parameter or an X-API-Key request header.Read 2 Oct 2026 · mockaroo.com
API limits
The documentation lists daily API limits of 200 requests for Free, 1 million records for Silver, and 10 million records for Gold.Read 2 Oct 2026 · mockaroo.com
API mocking
Mock APIs can map request parameters to schemas, generate dynamic data, simulate errors, or return static data.Read 2 Oct 2026 · mockaroo.com
Data types
The Mock APIs page says users can choose from more than 100 built-in data types, upload reference data, or build data types with the formula API.Read 2 Oct 2026 · mockaroo.com
Notable limit
The Generate API documentation says synchronous responses are limited to 5,000 records regardless of plan; background generation requires a paid plan.Read 2 Oct 2026 · mockaroo.com
Output formats
The Generate API supports JSON, CSV, tab-separated text, custom-delimited text, SQL, and XML output.Read 2 Oct 2026 · mockaroo.com

Plans and prices

Free Free 1,000 rows/file · unlimited browser downloads · 200 API requests/day · 1x speed · all features · hosted on mockaroo.com Read 2 Oct 2026 · mockaroo.com
Silver $60 a year $60/year 100,000 rows/file · unlimited browser downloads · 1M API records/day · 8x speed · all features · hosted on mockaroo.com Read 2 Oct 2026 · mockaroo.com
Gold $500 a year $500/year 10M rows/file · unlimited browser downloads · 10M API records/day · 8x speed · all features · hosted on mockaroo.com Read 2 Oct 2026 · mockaroo.com
Enterprise $7,500 a year $7500/year Unlimited data and users · private cloud or datacenter · Docker image · unlimited API calls · 8x speed or more Read 2 Oct 2026 · mockaroo.com

Every Mockaroo plan and price →

Strong points and limits

Strong points

  • More than 100 built-in data types.
  • Supports reference data and formula-defined types.
  • Mock APIs can simulate errors or return static data.
  • Enterprise offers private-cloud or datacenter deployment.

Limits

  • Free allows 1,000 rows per file.
  • Free API limit is 200 requests per day.
  • Synchronous responses are capped at 5,000 records.
  • Background generation requires a paid plan.

Who it suits

Mockaroo suits developers and testers who need realistic test data, including front-end developers working before a back end is ready. It also fits teams that need to create mock API responses or generate relational data.

Verdict

Mockaroo combines test-data generation with configurable mock APIs and several output formats. Check the per-plan limits and the synchronous response cap against the size and cadence of your generation needs.

Where Specifiction places it

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