Need some mock data to test your app? Mockaroo lets you generate up to 1,000 rows of realistic test data in CSV, JSON, SQL, and Excel formats.

Download data using your browser or sign in and create your own Mock APIs.

Need more data? Plans start at just $50/year.

Field Name
Add another field

Mock your back-end API and start coding your UI today.

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!

Why is test data important?

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 data, which puts stress on your code. If you're hand-entering data into a test environment one record at a time using the UI, you're never going to build up the volume and variety of data that your app will accumulate in a few days in production. Worse, the data you enter will be biased towards your own usage patterns and won't match real-world usage, leaving important bugs undiscovered.

Why is realistic data important?

When your test database is filled with realistic looking data, you'll be more engaged as a tester. When you demonstrate new features to others, they'll understand them faster. Real data is varied and will contain characters that may not play nice with your code, such as apostrophes, or unicode characters from other languages. Testing with realistic data will make your app more robust because you'll catch errors that are likely to occur in production before release day.

Why Mockaroo?

There are plenty of great data mocking libraries available for almost every language and platform. But not everyone is a programmer or has time to learn a new framework. Mockaroo allows you to quickly and easily to download large amounts of randomly generated test data based on your own specs which you can then load directly into your test environment using SQL or CSV formats. No programming is required.

Want to automate test data generation?

If you sign in using your Google account, you can download random data programmatically by saving your schemas and using curl to download data in a shell script via a RESTful url.

What's new in Mockaroo?

Added Car VIN type
Mock APIs now support all data formats.
You can now create your own Mock APIs!
Added character and digit sequence types
You can control the output format when generating phone numbers
Added /api/types.json method to list all available types and corresponding parameters
Switched to easier to read font in page headers
Added Animal, Plant, and Movie data types
Added Firebase output format
SSNs are now guaranteed to be valid
You can now restrict locations by state.
Data is now displayed in a table when previewing CSV, tab-delimited, excel, and SQL formats.
Add Stock Industry, Market, Name, Symbol, Sector for all NYSE and NASDAQ stocks.
Added Car Make, Model, and Year types.