JSON → Rust Struct
Convert JSON objects into Rust struct definitions with Serde attributes.
JSON to Language Struct / Class Generator
About JSON → Rust Struct
The JSON to Rust Struct Converter transforms JSON payloads and API responses into idiomatic Rust structs with Serde derive macros (`#[derive(Serialize, Deserialize)]`), field renaming attributes (`#[serde(rename = "...")]`), and `Option<T>` nullable wrappers.
How to Use JSON → Rust Struct
Step 1
Paste your JSON data into the editor.
Step 2
Configure Serde derive macros and naming attributes.
Step 3
Enter root struct name (e.g. `ApiResponse`).
Step 4
Click "Copy Rust Struct".
Practical Use Cases for JSON → Rust Struct
Rust Web Server API Deserialization (Actix-web, Axum, Rocket)
Convert JSON request/response bodies into strongly-typed Rust data structures for Serde JSON deserialization in Actix and Axum web services.
CLI Tools & WebAssembly (Wasm) Rust Data Modeling
Generate Rust structs with `serde` and `serde_json` attributes for local configuration and Wasm modules.
Input & Output Examples
Converting JSON to Rust Serde Struct
`{ "account_id": 101, "display_name": "Bob", "balance": 450.50 }``#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]\n#[serde(rename_all = "camelCase")]\npub struct Account {\n #[serde(rename = "account_id")]\n pub account_id: i64,\n #[serde(rename = "display_name")]\n pub display_name: String,\n pub balance: f64,\n}`Key Features & Performance
- ✓Derives standard Rust traits: `Serialize`, `Deserialize`, `Debug`, `Clone`, `PartialEq`, `Default`.
- ✓Serde attributes: `#[serde(rename = "...")]`, `#[serde(rename_all = "snake_case")]`, `#[serde(default)]`.
- ✓Maps null values and optional properties to `Option<T>`.
- ✓100% Client-Side memory execution.
- ✓1-Click Copy Rust code.
Key Terminology & Definitions
Serde (`Serialize` / `Deserialize`)
The dominant serialization framework in the Rust ecosystem for efficiently serializing and deserializing Rust data structures.
`Option<T>` in Rust
An enum representing either a value (`Some(T)`) or no value (`None`), used in Rust in place of null values.