What data can it generate?

Pick a preset — users, products or posts — and choose how many rows. Each field is randomly assembled from bundled word lists.

Yes. The output is a pretty-printed JSON array you can paste straight into a fixture, a stub or a test.

Does it work offline?

Yes. Records are built entirely in your browser and nothing is sent to a server.

Random JSON Generator

Generate arrays of realistic sample JSON — users, products or posts — for tests, mockups and API stubs. Everything is assembled offline in your browser, no uploads.

Choose a dataset and press Generate to create sample records.

DataRows

JSON

About this tool

Generate arrays of realistic sample JSON — users, products or posts — for tests, mockups and API stubs. Records are assembled offline in your browser from bundled word lists.

Common use cases

Seed a frontend with believable fixture data
Stub an API response while a backend is built
Fill a test with a valid JSON array