Mockaroo

In plain words

Mockaroo is a test data generator and API mocking tool that creates realistic datasets in CSV, JSON, SQL, and Excel formats. It's designed for developers who need to test applications with production-like conditions without building real backends. The tool includes thousands of names and surnames in multiple languages and allows users to design custom mock APIs with controlled URLs, responses, and error conditions, enabling parallel UI and API development.

written from the facts on this page · September 2026

From the sources

With Mackaroo you can test your APIs more easily and realistically than ever. It generates more than 9,000 female and male names and 50,000 surnames in many different languages so you can get a real-world view of your product.

A free test data generator and API mocking tool - Mockaroo lets you create custom CSV, JSON, SQL, and Excel datasets to test and demo your software.

It's hard to put together a meaningful UI prototype without making real requests to an API. By making real requests, you'll uncover problems with application flow, timing, and API design early, improving the quality of both the user experience and API. With Mockaroo , you can design your own mock APIs , You control the URLs, responses, and error conditions. Paralellize UI and API development and start delivering better applications faster today! If you're developing an application, you'll want to make sure you're testing it under conditions that closely simulate a production environment. In production, you'll have an army of users banging away at your app and filling your database with…from mockaroo.com

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