JSON to Rust Converter
Generate Rust serde structs from JSON
JSON to Rust Converter is a free online tool from BrowserUtils that generate rust serde structs from json. It runs entirely in your browser — your data never leaves your device. No account required.
How to use JSON to Rust Converter
- 1 Paste or type your input into the editor above.
- 2 The tool processes your data instantly — right in your browser, with nothing sent to a server.
- 3 Copy the result with one click or continue editing your input.
About JSON to Rust Converter
Free online JSON to Rust converter. Automatically generate Rust structs with serde Serialize and Deserialize derives from JSON data. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
JSON to Rust Converter specs
- Runtime
- 100% client-side (browser)
- Cost
- Free — no account, no rate limits, no usage caps
- Browser support
- Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
- Part of
- 299 developer tools on BrowserUtils (100% client-side)
Questions
How do I generate Rust structs from JSON?
Paste your JSON into the input field and the tool will produce Rust structs with #[derive(Debug, Serialize, Deserialize)] attributes. Fields use snake_case with serde rename attributes when needed.
What Rust types does the converter produce?
The converter maps JSON strings to String, integers to i64, decimals to f64, booleans to bool, and arrays to Vec<T>. Null values are typed as Option<serde_json::Value>.
Do the generated Rust structs work with serde out of the box?
Yes, the structs include #[derive(Serialize, Deserialize)] attributes and serde rename annotations where needed, so they work directly with serde_json for serialization and deserialization.
Is the JSON to Rust converter private?
All processing runs locally in your browser. No JSON data is sent to any server, making it safe for production payloads and internal API responses.
How does the converter handle JSON keys with hyphens or spaces?
Keys that are not valid Rust identifiers are converted to snake_case with a #[serde(rename = "original-key")] attribute so the struct compiles and still maps to the original JSON field name.
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