Rust APIs often start with a sample JSON payload long before a formal schema exists. Converting that payload into structs quickly gives you a better starting point for serde-powered parsing and strongly typed application code.
What Is the JSON to Rust?
JSON to Rust is one of the tools in WebdevToolbox’s JSON Tools category. Generate Rust structs with serde derive attributes from JSON data. It runs entirely in your browser — no server uploads, no accounts, no waiting.
How to Use It
- Open the tool at /tools/json-to-rust.
- Paste a representative JSON object or array into the input field.
- Inspect the generated Rust structs with serde derive attributes as they update in real time.
- Use the Copy button to copy the Rust code into your crate.
Key Features
- 100% client-side — all processing happens in your browser. Nothing is sent to a server.
- Real-time code generation — Rust output refreshes immediately as you edit the sample JSON.
- Serde-ready structs — generated code is tailored for common Rust JSON workflows using serde derive attributes.
- Nested type inference — objects and arrays are mapped into structured Rust types you can refine in your domain model.
- One-click copy — copy the generated structs to your clipboard with a single button press.
When to Use the JSON to Rust
- API client bootstrapping — start a reqwest or axum integration from a real payload instead of writing serde structs from scratch.
- Webhook handling — model incoming event JSON before building validation and deserialization logic in Rust.
- Fixture-driven development — paste captured JSON from tests or logs to create starter structs for parsing code.
Try It Now
Open JSON to Rust directly from anywhere on the site using ⌘K and typing the tool name. No login required — everything runs offline-capable in your browser.
Part of the JSON Tools collection on WebdevToolbox — free, browser-based developer tools with no login required.