Random JSON Generator - Free Online Tool | PivaBox

Generate random JSON data from JSON Schema or template placeholders

How to Use Random JSON Generator

1. Choose From Schema to generate data from a JSON Schema, or From Template to use placeholder-based generation
2. Enter your JSON Schema or template with placeholders like [[]], [[]], [[]]
3. Set the count (1-20) and click Generate. Use Copy or Download to export the result

Frequently Asked Questions

Is Random JSON Generator free?

Yes, PivaBox Random JSON Generator is completely free to use with no limits.

Does my data leave my device?

No. All generation happens entirely in your browser using pure JavaScript. Your schema or template data never leaves your device.

What placeholders are supported?

The template mode supports many placeholders: <code>[[]]</code> for random names, <code>[[]]</code> for emails, <code>[[]]</code> for UUIDs, <code>[[]]</code> for random numbers, <code>[[]]</code> for true/false, <code>[[]]</code> for dates, <code>[[]]</code> for strings of length N, and more.