What is JSON to Rust Serde Schema Generator?
This tool converts JSON data into Rust struct definitions with serde attributes. It generates ready-to-use Rust code with automatic type inference, nested struct support, Option types for nullable fields, and serde rename/skip_serializing_if attributes.
How to Use
- Paste your JSON object or array into the input area
- Configure options: root struct name, snake_case conversion, date detection, Option types, skip_serializing_if
- Click "Generate Rust Structs" to create the code
- Copy the output and add it to your Rust project
Why Use This Tool?
Tips & Best Practices
- Use realistic sample data for accurate type inference
- Enable snake_case for idiomatic Rust field names
- The rename_all attribute handles camelCase JSON keys automatically
- skip_serializing_if omits None fields from serialized JSON
Frequently Asked Questions
What is serde?
Serde is a framework for serializing and deserializing Rust data structures efficiently and generically. It is the de facto standard for JSON handling in Rust and supports many other formats like YAML, TOML, and binary formats.
How are JSON types mapped to Rust?
JSON strings → String, integers → i64, floats → f64, booleans → bool, null → Option<T>, arrays → Vec<T>, and nested objects → separate Rust structs. ISO-8601 dates can be detected as DateTime<Utc> or NaiveDate.
What is the rename_all attribute?
The #[serde(rename_all = "snake_case")] attribute automatically converts all field names to snake_case during serialization and deserialization. This allows you to use idiomatic Rust naming while working with camelCase JSON APIs.
What is skip_serializing_if?
The #[serde(skip_serializing_if = "Option::is_none")] attribute prevents None values from appearing in the serialized JSON output. This results in cleaner, smaller JSON when optional fields are not set.
Is my data sent to a server?
No, all processing happens entirely in your browser. Your JSON data never leaves your device.