MockNeat

Free plan API

What MockNeat is

MockNeat is a free, open-source Java library for generating synthetic data inside applications. Its fluent API creates JSON, XML, CSV, and SQL output, and it can also provide primitive values, strings, date-related values, or act as a Java Random substitute and mocking library. Documented generators cover Java types and objects, numbers, personal information, geography, internet data, financial data, and data formats. Java object creation includes constants, constructors, factories, fillers, and reflection. Generators are lazy, producing values when get() or val() is called. Reusable random factories can wrap ThreadLocalRandom, SecureRandom, or the older Random implementation. Installation instructions are provided for Maven Central and Gradle, with source-build guidance; the getting-started examples list version 0.4.8. MockNeat is self-hosted rather than a hosted data service. The maker provides a tutorial and API documentation. Its data generators are not thread-safe. For REST API mocking, the project directs users to the separate ServerNeat project. MySQL is listed among database connectors.

Who it suits

MockNeat is for Java developers who need programmatic synthetic, relational, or API data generation in their own projects. It fits self-hosted workflows using Maven or Gradle.

What it does well

Free and open source
Generates JSON, XML, CSV, and SQL
Broad data generator categories
Maven and Gradle installation guidance
Lazy value generation

What to know first

Data generators are not thread-safe
REST mocking requires separate ServerNeat
Self-hosted library, not hosted service
Current examples list version 0.4.8

Limits

The library is free, but its documented data generators are not thread-safe. REST API mocking is directed to the separate ServerNeat project.

Getting started

Open the MockNeat website and documentation
Add the library through Maven Central or Gradle
Use the version 0.4.8 example as a dependency reference
Build from source if that installation route suits your project
Create generators with the fluent API
Call get() or val() to produce values

Verdict

MockNeat offers a broad fluent toolkit for producing synthetic data directly in Java applications. Its format coverage and generator choices are useful, but developers must account for non-thread-safe generators and separate REST-mocking tooling.

Questions

Is MockNeat free?

Yes. The listed pricing model is free, with a free plan and no trial requirement.

Which formats can it generate?

Its API generates JSON, XML, CSV, and SQL data programmatically.

How is MockNeat installed?

The maker provides Maven Central and Gradle instructions, plus source-build instructions.

Is MockNeat hosted?

No. It is a self-hosted Java library used within your own projects.

Does it support REST API mocking?

For REST API mocking, the maker directs users to the separate ServerNeat project.

Who makes MockNeat?

The site identifies Andrei N. Ciobanu, with Bucharest, Romania listed on the maker profile.

Facts from MockNeat's own pages

Company details: The opened maker pages identify an individual developer but do not state a founding date or company headquarters. · mockneat.com, 4 Oct 2026
Current listed version: The getting started page gives version 0.4.8 in its Maven and Gradle examples. · mockneat.com, 4 Oct 2026
Data formats: Its fluent API can generate JSON, XML, CSV, and SQL data programmatically. · mockneat.com, 4 Oct 2026
Generator categories: Documented generator categories include financial, geographic, internet, Java type, Java object, number, and personal information data. · mockneat.com, 4 Oct 2026
Generators: The documentation lists generators for Java types, personal information, geography, internet data, financial data, and data formats. · mockneat.com, 4 Oct 2026
Installation: The maker provides Maven Central and Gradle installation instructions and source-build instructions. · mockneat.com, 4 Oct 2026
Integrations: The maker provides Maven and Gradle dependency instructions for installing the library. · mockneat.com, 4 Oct 2026
Intended users: The maker’s pages describe MockNeat as a library for developers generating arbitrary data programmatically. · mockneat.com, 4 Oct 2026
Lazy API: Generators are lazy: call get() or val() to produce a value. · mockneat.com, 4 Oct 2026
Maker: The site identifies Andrei N. Ciobanu as the maker and lists Bucharest, Romania. · mockneat.com, 4 Oct 2026
Maker location: The maker profile on the official site lists Bucharest, Romania. · mockneat.com, 4 Oct 2026
Object creation: The documented Java object generators include constant, constructor, factory, filler, and reflect. · mockneat.com, 4 Oct 2026
Object generation: Its documented Java object generators include constructor(), factory(), filler(), and reflect(). · mockneat.com, 4 Oct 2026
Other use: The maker says MockNeat can also act as a Java Random substitute or a mocking library. · mockneat.com, 4 Oct 2026
Output formats: The maker documents CSV and SQL insert generators, and describes generating JSON and XML through the API. · mockneat.com, 4 Oct 2026
Product: MockNeat is an open source, faker-like arbitrary data generator library written in Java. · mockneat.com, 4 Oct 2026
Purpose: Its fluent API lets developers create JSON, XML, CSV, and SQL data programmatically. · mockneat.com, 4 Oct 2026
Random modes: The tutorial describes reusable factories backed by ThreadLocalRandom, SecureRandom, or the older Random implementation. · mockneat.com, 4 Oct 2026
Random options: MockNeat provides factory objects wrapping ThreadLocalRandom, SecureRandom, or the older Random implementation. · mockneat.com, 4 Oct 2026
Random values: The library can generate primitive values, strings, and date-related values, and can act as a Random substitute. · mockneat.com, 4 Oct 2026
REST API mocking: For mocking REST APIs, the maker directs users to its separate ServerNeat project. · mockneat.com, 4 Oct 2026
Support and documentation: The maker provides a tutorial and official API documentation for the library. · mockneat.com, 4 Oct 2026
Thread safety: The tutorial states that none of the data generators is thread-safe. · mockneat.com, 4 Oct 2026

Where MockNeat stands on Freedom251

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