JSON to Schema & Interface Generator

Instantly convert raw JSON payloads into strongly typed classes, structs, and deserialization helpers. 100% client-side and offline — no data is sent to any server.

JSON Payload Input
Generated Source Code
// Generated output will appear here...
* Field names mirror JSON keys. Root object defaults to RootObject.
Quick Start Guide
STEP 01
Paste JSON Payload
Enter any valid JSON object or array into the left input panel.
STEP 02
Select Target Language
Choose your desired target programming language from the top toolbar dropdown.
STEP 03
Generate Models
Click Generate Schema to instantly derive nested data structures and models.
STEP 04
Copy & Integrate
Click Copy Code to copy generated structs/classes to your clipboard for app integration.
Key Features & Conversions
  • Automatic Type Inference: Detects integers, floating-point numbers, booleans, strings, arrays, and nested structures automatically.
  • Array Item Unification: Merges attributes across objects inside lists to construct comprehensive interface schemas.
  • Language Naming Idioms: Converts JSON keys into canonical naming standards (e.g., PascalCase for C#/Go, snake_case for Python/Rust/C, and camelCase for PHP).