JSON to Java Converter
Convert JSON to Java POJO classes for Java development
JSON Input
Java Output
What is JSON to Rust Converter?
Need to generate Rust structs from your JSON (JavaScript Object Notation) data? This tool does that instantly. Perfect for Rust developers working with web services, APIs, or systems programming who need to deserialize JSON into strongly-typed Rust structs. Generate structs, Serde derives, and type definitions automatically.
According to Rust documentation, Serde is the standard library for serialization and deserialization. Our converter analyzes your JSON structure and generates proper Rust structs. First, validate your JSON using our JSON Validator, then convert it to Rust. You can also format your JSON with our JSON Formatter first if needed.
Everything happens in your browser – your JSON never leaves your computer. Convert, download, and use your Rust structs right away.
What Makes This Tool Different
Automatic Struct Generation
We analyze your JSON structure and automatically generate Rust structs. JSON objects become structs, arrays become Vec<T>, everything gets proper Rust types.
Serde Support
Generate Rust structs with Serde derives for seamless JSON encoding and decoding. Works great with serde_json and other Serde-compatible libraries.
Option Types
Use Option<T> for nullable fields. Perfect for Rust's type system and safe JSON decoding with proper error handling.
File Upload Support
Got a big file? Just upload it. Works great for converting those massive JSON configs or data files without copy-pasting.
Download Rust
One click to download your Rust file. Drop it into your Rust project and start using it. Perfect for web services, APIs, or systems programming.
Clean Code Output
The generated Rust code is clean and well-formatted. Structs are properly named, fields are typed correctly, and the code follows Rust conventions.
How It Works
Paste or Upload JSON
Paste your JSON into the left editor, or click "Upload" to load a file. The JSON should be valid – use our JSON Validator first if you're not sure. You can also click "Sample" to see an example.
Configure Options
Set your struct name, choose whether to use Serde, and configure Option types. These settings customize the generated Rust code to match your project's conventions.
Download or Copy
Click "Download" to save the Rust file, or "Copy" to copy it to your clipboard. The Rust code is ready to use in your project. Drop it into your Rust project and start using it.
When You'd Actually Use This
Web Services
Generate Rust structs from JSON API responses for web services. Create models for REST APIs or JSON-based configurations. Perfect for Rust web frameworks like Actix or Rocket.
API Development
Create Rust structs from JSON data for API development. Generate data models for JSON-based APIs or integrations. Perfect for Rust's API development needs.
Systems Programming
Generate Rust structs from JSON data for systems programming. Create data models for JSON-based configurations or device settings. Perfect for Rust's systems programming strengths.
Code Generation
Generate Rust code from JSON data structures. Perfect for creating data models, DTOs, or entity structs from JSON schemas or API responses.
Common Questions
Is my JSON data stored?
Nope. Everything happens right in your browser. Your JSON never leaves your computer – we don't even see it.
How are JSON objects handled?
JSON objects become Rust structs. Properties become struct fields, and nested objects become nested structs or references. Arrays become Vec<T>.
Can I use the generated Rust code?
Yes. The generated Rust code is valid and ready to use. Drop it into your Rust project and start using it. You may want to review and refine the structs for your specific use case.
What about Serde?
You can enable Serde in the configuration options. This generates Rust structs with Serde derives for seamless JSON encoding and decoding with serde_json.
Does it work with large JSON files?
Yep. Since everything happens in your browser, it depends on your device. Small to medium JSON structures convert instantly. Really huge structures might take a few seconds.
What Rust version is supported?
The generated code works with Rust 1.0 and later. It uses standard Rust features and Serde for maximum compatibility.
Other JSON Tools You Might Need
Conversion is just one JSON task. Here are other tools that work well together:
Need to learn more about JSON? Check out the official JSON.org website or the comprehensive guide on MDN. For Rust, check out the official Rust documentation.