JSON Schema Generator

Generate JSON Schema (draft-07) or TypeScript interfaces from any JSON input. Paste your JSON, hit Generate, and get a fully typed schema in seconds.

JSON Input
Output
JSON Schema (draft-07) will appear here...

Features

  • Generate JSON Schema (draft-07) from any valid JSON

  • Generate TypeScript interfaces with proper type annotations

  • Detect string formats: date-time, email, and URI

  • Handle nested objects and arrays recursively

  • Prettify input and output with one click

  • 100% client-side processing - your data stays private

Perfect For

API Development

Generate request and response schemas from sample JSON payloads for OpenAPI specs and API documentation.

Form Validation

Create JSON Schema definitions to validate user input in web forms using libraries like Ajv or Zod.

TypeScript Projects

Quickly scaffold TypeScript interfaces from API responses instead of writing them by hand.

Data Modeling

Derive schema definitions from real-world data samples to document and enforce data contracts across services.

Was this tool helpful?

Help us improve by sharing your feedback

Automate Your Business with AI

Love our free tools? Discover our AI-powered products that help businesses automate customer communication.

JSON Schema Generator - Frequently Asked Questions

Related Developer Tools

More free tools for developers