JSON to Objective-C Converter

Convert JSON to Objective-C classes for Objective-C development

JSON Input

Objective-C Output

What is JSON to Objective-C Converter?

Need to generate Objective-C classes from your JSON (JavaScript Object Notation) data? This tool does that instantly. Perfect for Objective-C developers working with iOS, macOS, or legacy Apple applications who need to deserialize JSON into strongly-typed Objective-C objects. Generate classes, properties, and type definitions automatically.

According to Apple's documentation, NSJSONSerialization is the standard way to handle JSON in Objective-C. Our converter analyzes your JSON structure and generates proper Objective-C classes. First, validate your JSON using our JSON Validator, then convert it to Objective-C. You can also format your JSON with our JSON Formatter first if needed.

Everything happens in your browser – your JSON never leaves your computer. Convert, download, and use your Objective-C classes right away.

What Makes This Tool Different

Automatic Class Generation

We analyze your JSON structure and automatically generate Objective-C classes. JSON objects become classes, properties become instance variables, everything gets proper Objective-C types.

Property Declarations

Generate Objective-C classes with @property declarations. Perfect for modern Objective-C with automatic getters and setters.

Foundation Types

Uses Foundation framework types like NSString, NSNumber, NSArray, and NSDictionary. Compatible with NSJSONSerialization and other Apple frameworks.

File Upload Support

Got a big file? Just upload it. Works great for converting those massive JSON configs or data files without copy-pasting.

Download Objective-C

One click to download your Objective-C header and implementation files. Drop them into your Xcode project and start using them.

Clean Code Output

The generated Objective-C code is clean and well-formatted. Classes are properly named, properties are typed correctly, and the code follows Objective-C conventions.

How It Works

1

Paste or Upload JSON

Paste your JSON into the left editor, or click "Upload" to load a file. The JSON should be valid – use our JSON Validator first if you're not sure. You can also click "Sample" to see an example.

2

Configure Options

Set your class name. These settings customize the generated Objective-C code to match your project's conventions.

3

Download or Copy

Click "Download" to save the Objective-C files, or "Copy" to copy them to your clipboard. The Objective-C code is ready to use in your project. Drop it into your Xcode project and start using it.

When You'd Actually Use This

iOS Development

Generate Objective-C classes from JSON API responses for iOS apps. Create models for REST APIs or JSON-based configurations. Perfect for iOS applications using Objective-C.

macOS Development

Create Objective-C classes from JSON data for macOS apps. Generate data models for JSON-based APIs or configurations. Perfect for macOS application development.

Legacy Code Maintenance

Generate Objective-C classes from JSON data for legacy Apple applications. Create data models for JSON-based integrations or configurations. Perfect for maintaining older Objective-C projects.

Code Generation

Generate Objective-C code from JSON data structures. Perfect for creating data models, DTOs, or entity classes from JSON schemas or API responses.

Common Questions

Is my JSON data stored?

Nope. Everything happens right in your browser. Your JSON never leaves your computer – we don't even see it.

How are JSON objects handled?

JSON objects become Objective-C classes. Properties become instance variables with @property declarations, and nested objects become nested classes or references. Arrays become NSArray.

Can I use the generated Objective-C code?

Yes. The generated Objective-C code is valid and ready to use. Drop it into your Xcode project and start using it. You may want to review and refine the classes for your specific use case.

What about NSJSONSerialization?

The generated classes work perfectly with NSJSONSerialization. You can use NSJSONSerialization to convert JSON data into these Objective-C objects.

Does it work with large JSON files?

Yep. Since everything happens in your browser, it depends on your device. Small to medium JSON structures convert instantly. Really huge structures might take a few seconds.

What Objective-C version is supported?

The generated code works with Objective-C 2.0 and later. It uses modern Objective-C features like @property and follows Objective-C conventions for maximum compatibility.

Other JSON Tools You Might Need

Conversion is just one JSON task. Here are other tools that work well together:

JSON ParserJSON FormatterJSON ValidatorJSON MinifierJSON to CSVJSON to YAMLJSON to XMLJSON to TypeScriptJSON to JavaJSON to PythonJSON to PHPJSON to GoJSON to Swift

Need to learn more about JSON? Check out the official JSON.org website or the comprehensive guide on MDN. For Objective-C, check out Apple's Objective-C documentation.