About JSON Generator - Free Mock Data Creation Tool | JSON Generator
Mock Data Generator

Generate Fake JSON Data for Testing & Development

Create realistic mock data instantly using simple templates. Perfect for API testing, database seeding, and UI prototyping.

No Sign-up Required
Instant Generation
Unlimited Records
100% Private
WebAssembly Powered
Open Source

Trusted by Developers Worldwide

Join thousands of developers who rely on JSON Generator

Active Users
25K+
Developers worldwide
JSON Generated
5M+
Data structures created
Performance
99.9%
Uptime reliability

Powerful Features

Everything you need to generate realistic JSON data for your development projects

Smart Generation

Generate realistic data with intelligent templates and built-in data types for names, addresses, and more.

Custom Templates

Create complex nested structures with custom templates, arrays, and cross-field references.

Easy Sharing

Share your JSON templates with team members and collaborate on data structures effortlessly.

Export Options

Download your generated JSON data in multiple formats and integrate with your workflow.

Privacy First

Your data stays private. We don't collect personal information and respect your privacy.

Lightning Fast

Built with WebAssembly for blazing fast performance and instant JSON generation.

Ready to Transform Your Workflow?

Join thousands of developers who trust JSON Generator for their data mocking needs. Start creating realistic JSON data in seconds.

256-bit Encryption
Global CDN
99.9% Uptime