Swift Model Generator

Transform JSON data into production-ready Swift models with automatic Codable protocol implementation. Features intelligent type inference, nested object handling, optional property detection, and snake_case to camelCase conversion. Perfect for iOS developers working with REST APIs and JSON data structures.

Codable Support Nested Objects Optional Detection CamelCase Conversion

Quick Examples

STRUCT: struct User: Codable { ... }
OPTIONAL: var age: Int?
NESTED: struct Address: Codable { ... }

JSON Input

Enter JSON to validate

Model Configuration

Root Model Name

Name for the main Swift struct/class

Model Type

Access Level

Codable Protocol

Hashable Protocol

Identifiable Protocol

Advanced Options

Convert snake_case to camelCase

Generate CodingKeys enum

Include Documentation Comments

Smart Optional Detection

Generate Custom Initializers

Generated Swift Models

Ready to generate models 0 models generated

Model Analysis

0

Properties

0

Optionals

0

Nested

0

Arrays

Detected Types:

Quick Actions

Help & Related Tools

Everything you need to know

FAQ Frequently Asked Questions

What features does the Swift Model Generator offer?

Convert JSON to Swift models with Codable protocol support, automatic snake_case to camelCase conversion, nested object handling, optional property detection, and customizable access levels. Perfect for iOS API integration and rapid development.

How do I convert JSON to Swift models?

Paste your JSON data into the input field, configure model settings like name and protocols, then click "Generate Models". The tool automatically creates production-ready Swift structs or classes with proper type inference and Codable implementation.

Does the tool handle complex nested JSON structures?

Yes, the generator automatically detects and creates separate Swift models for nested objects, handles arrays of objects, and maintains proper relationships between models. It supports unlimited nesting depth and complex data structures.

Are there any limitations for JSON size or complexity?

The tool handles most JSON structures efficiently, but extremely large files (over 10MB) may affect performance. For optimal results, we recommend well-structured JSON with clear type patterns. All processing happens client-side for privacy.

Can I customize the generated Swift code structure?

Absolutely! Configure model type (struct/class), access levels, protocol conformance (Codable, Hashable, Identifiable), naming conventions, CodingKeys generation, and custom initializers. Advanced options provide complete control over code output.