JSON Mock Generator
Generate realistic mock JSON data from field definitions
Enable JavaScript to use the interactive tool.
How to use this tool · examples & limitations
Generate realistic mock JSON data from field definitions.
Getting a reliable result
Begin with a few representative records, including an empty field and a non-ASCII character. Check field names and types after conversion.
Limitations to check
Formats differ in their treatment of nulls, dates, comments and numbers. Converting between them can lose information.
For network services, accounts and optional usage records, see our privacy policy.