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JSON to Rust Struct

Generate a serde-enabled Rust struct with explicit JSON field renames.

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A useful toolkit for text, data, images and calculations.

  1. 01

    Add your input

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  2. 02

    Make it yours

    Adjust the options and run the action.

  3. 03

    Take the result

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Rust struct generator from JSON online

Generate a serde-enabled Rust struct with explicit JSON field renames. Use this when inspecting structured input or preparing a data or code artifact. Generated commands and configurations remain text until you review and use them yourself.

How to use it

Paste JSON matching the structure in the example. Choose Run tool. Review the output, then copy or download it.

Worked examples

Use this when inspecting structured input or preparing a data or code artifact. Generated commands and configurations remain text until you review and use them yourself.

Reproducible worked example

Settings: No additional settings.

Input:

{ "name":"Anna", "count":3, "active":true }

With the input and settings above, the tool produces:

Output:

use serde::{Deserialize, Serialize};

#[derive(Debug, Serialize, Deserialize)]
pub struct Generated {
    #[serde(rename = "name")]
    pub field_1: String,
    #[serde(rename = "count")]
    pub field_2: f64,
    #[serde(rename = "active")]
    pub field_3: bool,
}

The example output has 11 lines. Compare its order, separators and whitespace with the input before copying the result.

Limitations and common mistakes

  • Generates a starting type declaration from observed fields, not a complete application or an authoritative data contract. Review names, nullability, numeric precision and serialization dependencies.
  • Combined input is bounded to 150,000 characters; output text is bounded to 1.2 million characters. Some algorithms impose smaller limits, stated in their error messages.

Frequently asked questions

What format should I enter?

Paste JSON matching the structure in the example. The worked example shows the supported structure and actual output.

How can I create a serde-enabled Rust struct with explicit JSON field renames online?

Paste JSON matching the structure in the example. Choose Run tool. Review the output, then copy or download it.

Where is my input processed?

The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.

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