Code Generation
Generate TypeScript, Go, Java, C#, Python, Swift, Kotlin, Dart, PHP, SQL, and GraphQL types from sample JSON.
JSON to TypeScript Generator
Paste JSON and instantly generate accurate TypeScript interfaces, including nested and optional fields.
JSON to Java POJO Generator
Generate Java classes with fields and Jackson/Gson-ready annotations from any JSON sample.
JSON to C# Class Generator
Convert JSON into C# classes with properties and System.Text.Json / Newtonsoft attributes.
JSON to Python Generator
Generate Python dataclasses or Pydantic models with correct type hints from JSON samples.
Python Dict to JSON Converter
Paste a Python dictionary with single quotes and True/False/None and convert it to valid JSON.
JavaScript Object to JSON Converter
Convert JavaScript object literals with unquoted keys, single quotes, and trailing commas into valid JSON.
JSON to Go Struct Generator
Generate Go structs with correct field types and JSON tags from sample data.
JSON to Kotlin Data Class Generator
Turn JSON into Kotlin data classes with nullable types and serialization annotations.
JSON to Swift Struct Generator
Generate Codable Swift structs from JSON with CodingKeys for snake_case mapping.
JSON to SQL Generator
Convert JSON arrays into SQL CREATE TABLE and INSERT statements with inferred column types.
JSON to GraphQL Schema Generator
Generate GraphQL type definitions from sample JSON responses to bootstrap your schema.
JSON to PHP Array Converter
Convert JSON into native PHP array syntax ready to paste into your code.
JSON to Dart Class Generator
Generate null-safe Dart classes with fromJson/toJson methods for Flutter apps.