JSON to C# Class Converter

Convert JSON to C# class instantly. Generate C# classes with properties or records with JSON serialization attributes. Free online tool.

How to Convert JSON to C# Class

  1. 1 Paste your JSON data into the input area or upload a file
  2. 2 Enter a class name for the generated C# class
  3. 3 Optionally specify a namespace
  4. 4 Choose whether to use records instead of classes
  5. 5 Click Convert to C# to generate the code
  6. 6 Copy the code or download as a .cs file

Frequently Asked Questions

Is my code or data stored anywhere?

No. All developer tools process data locally in your browser. Nothing is sent to any server or logged.

Can I use these tools offline?

Yes! After the initial page load, most developer tools work without an internet connection.

Are there API limits?

No limits. Since processing happens in your browser, you can use the tools as much as you need.

Is the output compatible with production use?

Yes. Our tools produce standard-compliant output suitable for production environments.

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Last updated: January 15, 2026 · v2.1