Why generate Rust structs from my config?

Rust structs with serde derives let you deserialize config files directly using serde_json. This gives you type safety for your entire configuration and catches errors at compile time rather than runtime.

How does the tool handle nested config sections?

Each nested object becomes a separate Rust struct. The tool produces RootApp, RootDatabase, RootDatabaseCredentials, and RootFeatures structs, each with properly typed fields and serde attributes.

What Rust types are used for config values?

Strings become String, integers become i64, floats become f64, booleans become bool, and arrays become Vec . Empty objects become HashMap .

DevBento

Tools/JSON to TypeScript & 8+ Languages Generator/Generate Rust Structs from Config Object

Generate Rust Structs from Config Object

Generate Rust structs with serde Serialize and Deserialize derives from a nested application configuration. Paste your config JSON and get typed Rust code.

Output

Root name

Import path

JSON Input

TypeScript Output

// Generated by DevBento — json-to-typescript
interface RootApp {
  name: string;
  version: string;
  debug: boolean;
}

interface RootDatabaseCredentials {
  user: string;
  password: string;
}

interface RootDatabase {
  host: string;
  port: number;
  credentials: RootDatabaseCredentials;
}

interface RootFeatures {
  darkMode: boolean;
  maxConnections: number;
  allowedOrigins: string[];
}

interface Root {
  app: RootApp;
  database: RootDatabase;
  features: RootFeatures;
}

Send to:

Paste JSON to pretty-print, minify, validate, or visualize as an interactive graph. Syntax highlighting, tree view, and graph view with export.

ymlJSON / YAML / TOML / CSV / XML / HTML / Markdown

Convert between JSON, YAML, TOML, CSV, XML, HTML, Markdown, and .env in your browser. Paste config or API data and get the equivalent format instantly.

Generate Rust Structs from Config Object

Application configs have deep nesting: app settings, database credentials, feature flags. This example generates Rust structs from a multi-level config structure so you can deserialize configuration files directly in your Rust application.

What You Get

The tool produces:

Root Root struct with three top-level sections: App, Database, Features
RootApp struct with Name, Version, Debug fields
RootDatabase struct with Host, Port, and Credentials nested struct
RootDatabaseCredentials struct for database auth
RootFeatures struct with DarkMode, MaxConnections, and AllowedOrigins vec
Proper Rust type mappings: String, i64, bool, Vec<String>

How to Use

The example loads with a sample application config in Rust mode
The nested structure shows how each config section gets its own struct
Copy the structs and paste them into your Rust project
Replace with your actual config JSON to generate structs for your project

Real-World Pattern

Rust config libraries like config and figment work well with typed structs. Generate structs from your default config, then use serde_json::from_str or your config library’s decoder to populate them from JSON files, environment variables, or command-line flags.

🔒

Nothing you paste leaves this tab. Every tool runs entirely in your browser — no upload, no server, no account.