The limitation is that you can have up to 1,000 rows of fake data.
The free one is pretty good and covers all features. Mockaroo provides rich mock data for your backend testing.
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. Mockaroo for Realistic Data Generation and API Testing. 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. But not everyone is a programmer or has time to learn a new framework.
From this page its possible to choose the file type we want to download (CSV, JSON, SQL, Excel), the number of rows to generate and to configure each file field. There are plenty of great data mocking libraries available for almost every language and platform. Faker API allows to generate and download files with fake data to use as you prefer: populating databases, creating API requests for another service. This post will demonstrate the usage of json-schema-faker to generate fake data from a JSON schema document. 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. Generate fake data to be used in your applications based on a JSON schema document. 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. When you demonstrate new features to others, they'll understand them faster. When your test database is filled with realistic looking data, you'll be more engaged as a tester. Worse, the data you enter will be biased towards your own usage patterns and won't match real-world usage, leaving important bugs undiscovered. 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. 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 developing an application, you'll want to make sure you're testing it under conditions that closely simulate a production environment. Paralellize UI and API development and start delivering better applications faster today! Why is test data important? With Mockaroo, you can design your own mock APIs, You control the URLs, responses, and error conditions. 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. It's hard to put together a meaningful UI prototype without making real requests to an API. Mock your back-end API and start coding your UI today.