Json To Code

Generate typed code definitions from a JSON sample. The dropdown lists ten target languages; the output is regenerated live as you edit the JSON or switch languages. Only TypeScript, Go, Rust, Kotlin, and Swift have full converters implemented; the other options (Java, Python, C#, Dart, PHP) are listed but produce no output.

1. Paste a JSON object or array into the Input textarea. 2. Select a target Language from the dropdown. 3. Read the generated code in the Output card; it updates automatically. 4. Click Copy to copy the result.

TypeScript emits an interface Data with optional (?) fields and quoted keys when needed. Go emits package main plus a type Data struct with PascalCase fields and json tags. Rust emits a struct with #[derive(Debug, Clone, Serialize, Deserialize)] and #[serde(rename = "...")] attributes using snake_case field names. Kotlin emits a data class Data(...) with camelCase fields. Swift emits a Codable struct with let fields. Arrays derive their item type from the first element; empty arrays fall back to any (TS) or interface{}/Vec<Item>.