Online JSON to Class Converter (C#, Java, Python, TS)

Automatically generate class structures in C#, Java, Python, or TypeScript from your JSON. Paste the code, drag a `.json` file, or use an example to get started. Reduce boilerplate and speed up your development!

1. Provide JSON

Click to select or drag and drop a `.json` file

Or paste the JSON below

3. Result

// Generated class code will appear here...

2. Select Output Language

How to Convert JSON to Class (4 Steps)

Provide JSON: Paste your JSON code into the text area or drag and drop a `.json` file onto the designated area.
Select Language: Click the tab for the desired output language (C#, Java, Python, or TypeScript).
Click Convert: Press the "Convert" button. The tool will parse the JSON and generate the class(es).
Copy Generated Code: The result will appear formatted on the right. Use the "Copy" button to grab the code for your project.

Frequently Asked Questions (FAQ)

How does the tool handle JSON data types?

The tool maps JSON types (string, number, boolean, array, object, null) to the corresponding types in the selected target language (e.g., string to String in Java, number to int/double, array to List/Array, object to a new nested class).

What happens with nested JSON objects?

For nested JSON objects, the tool typically generates corresponding nested classes or structures in the target language, maintaining the data hierarchy.

Can I customize the generated class or property names?

Currently, the tool generates names based on the JSON keys, applying common naming conventions (like PascalCase for classes and camelCase/PascalCase for properties, depending on the language). Advanced customization options might be added in the future.

Does the tool validate the JSON before conversion?

Yes, the tool attempts to validate the JSON structure before starting the conversion. If the JSON is invalid, an error message will be displayed, helping you correct the input.

Does the generated code include constructors or additional methods?

Generally, the tool focuses on generating the data structure (properties/fields). Automatic inclusion of constructors, `toString()`, `equals()`, `hashCode()` methods, or others may vary depending on the language and future options.

Is it safe to paste sensitive JSON data?

The conversion is performed locally in your browser or processed on our servers and deleted immediately after use. However, for extremely sensitive data, always exercise caution with online tools. Please refer to our Privacy Policy.