JSON to Rust Struct Converter
Convert JSON to Rust structs with serde derive macros online. Generate typed Rust structs from JSON data. Free, fast, and private.
About JSON to Rust Conversion
Rust's type system requires defining structs before deserializing JSON data with serde. Manually writing Rust structs for complex JSON APIs is time-consuming. This tool analyzes your JSON and generates Rust struct definitions with proper types (String, i64, f64, bool, Vec<T>), serde derive macros (Serialize, Deserialize, Debug, Clone), and automatic snake_case field naming with #[serde(rename)] attributes when needed. Nested objects become separate named structs, and null values are wrapped in Option<T>. All processing happens in your browser.
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- Paste your JSON data into the input panel
- Set the root struct name and derive options
- Click Convert to generate Rust structs
- Copy the structs into your Rust project
Common Use Cases
- Creating Rust structs from REST API responses
- Building typed models for Actix-web or Axum servers
- Generating serde-compatible types from JSON configs
- Quickly scaffolding Rust data models from sample data