Rust's strict type system requires explicit struct definitions for JSON parsing. Our generator creates serde-compatible Rust structs with proper derive macros.

Why Rust for JSON?

Performance: Serde is one of the fastest JSON libraries
Memory Safety: No null pointer exceptions
Zero-Cost Abstractions: Type safety without runtime overhead
Compile-Time Checks: Catch errors before running

Example Generation

Input JSON:

{
  "id": 1,
  "name": "John Doe",
  "active": true,
  "score": 95.5
}

Generated Rust:

use serde::{Deserialize, Serialize};

#[derive(Debug, Serialize, Deserialize)]
struct Root {
    id: i64,
    name: String,
    active: bool,
    score: f64,
}

Using the Generated Code

use serde_json;

fn main() -> Result<(), serde_json::Error> {
    let json = r#"{"id": 1, "name": "John"}"#;
    
    // Deserialize
    let user: Root = serde_json::from_str(json)?;
    println!("{:?}", user);
    
    // Serialize
    let json_out = serde_json::to_string(&user)?;
    println!("{}", json_out);
    
    Ok(())
}

Type Mappings

JSON strings → String
JSON integers → i64
JSON floats → f64
JSON booleans → bool
JSON null → Option<T>
JSON arrays → Vec<T>
JSON objects → Nested structs

Cargo.toml Dependencies

[dependencies]
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"

Try It Now

Head to our JSON to Rust Generator and create serde-ready structs from your JSON data!