JSON to Apex Generator
Paste any JSON payload and instantly generate production-ready Salesforce Apex classes with deserialization and serialization methods.
Paste JSON on the left and click "Generate Apex" to see your Apex classes here.
How It Works
Paste Your JSON
Paste any JSON response from a REST API, Postman, or your own application.
Generates Typed Classes
Nested objects become inner classes. Arrays become List<T>. Types are inferred automatically.
Copy & Deploy
Each class includes parse() and toJSON() methods. Paste into your Salesforce org.
Frequently Asked Questions
Is my JSON data sent to a server?
No. All processing happens entirely in your browser. Nothing is sent over the network — your data never leaves your machine.
What JSON structures are supported?
Objects, nested objects, arrays of objects, and all primitive types (String, Integer, Decimal, Boolean). Empty arrays default to List<Object>.
Can I use this for Salesforce REST API integrations?
Absolutely. Paste the JSON response from any external API into the tool, and use the generated Apex classes to deserialize the response in your Apex code.
Does it handle special characters in JSON keys?
Yes. Keys with special characters or leading numbers are sanitized into valid Apex identifiers, with a comment showing the original key name.