Mock JSON Data Generator
Generate realistic-looking fake JSON records for testing, prototyping, or populating a demo UI.
Free to use, no sign-up, no limit on how many times you run it.More developer tools
Overview
Useful for populating a UI prototype, testing how a table or list handles data, or seeding a local database without writing records by hand.
- Choose exactly which fields to include
- Generate up to 100 records at once
- Copy-ready formatted JSON output
How to use it
- 1Choose how many records you need and which fields to include
- 2Click Generate JSON
- 3Copy the result into your test data
Frequently asked questions
Is this real personal data?
No — every name, email, and value is randomly generated from a small set of common first names, last names, and placeholder email domains. None of it refers to real people.
Can I choose which fields are included?
Yes — toggle any combination of the available fields before generating, and only the selected ones will appear in the output.