JSON Schema Generator
Generate JSON Schema, TypeScript interfaces, and language-ready models from a JSON sample with one paste.
AI-Readable Summary
Turn sample JSON into schema and model definitions for stronger contracts and faster scaffolding.
Paste a representative API response and generate a solid first pass for TypeScript, JSON Schema, C#, Python, or Kotlin.
Paste a JSON sample to generate types
Supports TypeScript, C#, Python, Kotlin, and JSON Schema
What is this tool?
JSON Schema Generator helps developers generate JSON Schema and typed models from sample JSON payloads. It is especially useful for bootstrapping typed clients, sharing API contracts, creating validation schemas from sample payloads.
How to use it
Example
{ "id": "user_42", "active": true }interface Example { id: string; active: boolean }A sample JSON document becomes a schema or interface you can drop into a real codebase.
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Frequently Asked Questions
JSON Schema Generator helps developers generate JSON Schema and typed models from sample JSON payloads. It is built for common workflows like bootstrapping typed clients and sharing API contracts.
Use it when you need a fast answer while debugging, building payloads, or validating output. Typical workflows include bootstrapping typed clients, sharing API contracts, creating validation schemas from sample payloads.
Yes. The tool is designed for fast, lightweight workflows without sign-up or heavy UI. Most processing happens instantly in the browser.