Free JSON to Rust Struct Generator Online
Convert JSON data to Rust structs with serde derives automatically. Supports nested objects, arrays, and optional fields. Download .rs files instantly for free.
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What is JSON to Rust?
JSON to Rust is a free online tool that automatically generates Rust struct definitions from JSON data. It adds serde Serialize/Deserialize derives so your structs work seamlessly with serde_json. Perfect for Rust developers working with REST APIs, configuration files, or any JSON data source.
How to Use JSON to Rust
- Paste your JSON data into the input area
- Set the root struct name
- Choose optional derives (Clone, Debug)
- Click 'Convert' and copy or download the .rs file
JSON to Rust Features
- Automatic serde Serialize/Deserialize derives
- Nested objects generate separate structs
- Arrays map to Vec<T> with correct element types
- Optional Clone and Debug derives
- snake_case field names with serde rename support
JSON to Rust FAQ
Are serde derives included?
Yes, all generated structs include #[derive(Serialize, Deserialize)] by default, ready to use with serde_json.
How are null values handled?
Fields that appear null in JSON are typed as Option<T> to handle optional values safely.
Is my data secure?
Yes! All conversion happens in your browser. Your data is never sent to any server.