JSON to Rust Converter - Generate Rust Structs from JSON Online
Convert JSON data to Rust structs with serde Serialize/Deserialize traits from JSON objects. Free online tool.
JSON to Rust converter, Rust structs, serde, Rust code generation
JSON to Rust Converter
Convert JSON data to Rust structs with serde support
JSON Input
Rust Output
Rust code will appear here
Paste JSON in the input area to get started
How to Convert JSON to Rust Structs - Step by Step Guide
Input Your JSON Data
Start by adding your JSON data that needs to be converted to Rust structs. The tool analyzes the structure to generate appropriate structs with proper types.
Example: Try This JSON Data
Copy and paste this JSON example to see how it works: 🦀
{ "userId": 12345, "username": "rustacean", "email": "user@rust-lang.org", "isActive": true, "preferences": [ "memory_safety", "zero_cost_abstractions", "fearless_concurrency" ], "profile": { "firstName": "Ferris", "lastName": "Crab", "age": 10, "country": "Rust Nation" } }
Configure Rust Options
Customize how your JSON is converted to Rust structs! ⚙️ Choose struct names and serde options.
Get Generated Rust Code
Watch the transformation! ✨ Your JSON structure becomes clean, typed Rust structs with serde support.
Rust Code Output
Your JSON becomes these Rust structs:
use serde::{Deserialize, Serialize}; use serde_json; #[derive(Debug, Serialize, Deserialize)] pub struct Profile { #[serde(rename = "firstName")] pub first_name: String, #[serde(rename = "lastName")] pub last_name: String, pub age: i64, pub country: String, } #[derive(Debug, Serialize, Deserialize)] pub struct Root { #[serde(rename = "userId")] pub user_id: i64, pub username: String, #[serde(rename = "isActive")] pub is_active: bool, pub preferences: Vec<String>, pub profile: Profile, }
Copy or Download Rust Code
Perfect! Now you can use your Rust structs in your applications for JSON processing. 🚀
What is JSON to Rust Conversion? 🦀
JSON to Rust conversion transforms JSON data structures into Rust structs with serde Serialize/Deserialize traits for seamless data binding. This process analyzes JSON structure and generates Rust structs that can serialize and deserialize JSON data, making it easy to work with JSON in Rust applications.
The generated Rust structs include proper field types, serde attributes for field renaming, and derive macros for automatic serialization and deserialization, enabling type-safe JSON handling in Rust applications and web services.
Frequently Asked Questions
What Rust attributes are generated for JSON binding?
The tool generates serde attributes like #[serde(rename = "fieldName")] for field name mapping and #[derive(Debug, Serialize, Deserialize)] for automatic JSON serialization and deserialization support.
Can I use the generated structs with Rust web frameworks?
Absolutely! The generated Rust structs work perfectly with Actix Web, Rocket, Warp, and other Rust web frameworks. They integrate seamlessly with request/response handling and JSON serialization in Rust web applications.
How are nested JSON objects handled in Rust?
Nested JSON objects become separate Rust structs with proper relationships. The tool creates a struct hierarchy that mirrors your JSON structure, with parent structs containing fields of child struct types.
What Rust data types are used for JSON values?
JSON strings become Rust String, numbers become i64/f64, booleans become bool, arrays become Vec<T>, and objects become custom structs. The tool intelligently maps JSON types to appropriate Rust types.
Do I need to add serde dependencies to my Cargo.toml?
Yes, you'll need to add serde and serde_json to your Cargo.toml dependencies. Add: serde = { version = "1.0", features = ["derive"] } and serde_json = "1.0" to use the generated structs.
Is the JSON to Rust converter free to use?
Yes, completely free with no limitations on JSON complexity, struct generation, or usage frequency. No registration required, and you can generate unlimited Rust structs from JSON data at no cost.