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{}JSONKits

JSON to Apex

Generate Salesforce Apex class definitions with getters/setters from JSON data samples.

Input

json
loading editor…

Paste your JSON here...
or drop a file anywhere in this pane

Output

java

Generated Apex class will appear here...
press ⌘↵ to generate apex

What Is JSON to Salesforce Apex?

JSON to Salesforce Apex generates Apex class definitions with typed properties, getters, and setters from JSON data samples. Apex is Salesforce's strongly-typed, object-oriented programming language used to build custom business logic on the Salesforce platform.

This converter takes any JSON object and produces a ready-to-use Apex class with proper data types, get/set methods, and JSON.deserialize compatibility. It is essential for:

  • Salesforce integration: Create Apex wrapper classes for external REST API responses consumed in your org.
  • Rapid Apex development: Eliminate manual class writing when prototyping new Salesforce integrations or web services.
  • Data migration: Generate typed Apex classes for JSON payloads during data import and ETL processes.

How to Convert JSON to Apex Online

  1. Paste a JSON sample: Copy a JSON object from an API response or data file and paste it into the input editor.
  2. Click Generate Apex: Press the "Generate Apex" button to create the Apex class definition.
  3. Review the output: Check the generated class properties, data types, and getter/setter methods.
  4. Copy to Salesforce: Copy the Apex code into your Salesforce Developer Console or VS Code Salesforce project.

Frequently Asked Questions

What Apex data types does the generator use for JSON fields?

The generator maps JSON types to appropriate Apex types: strings become String, numbers become Decimal, booleans become Boolean, objects become inner classes, and arrays become List<Type>. Nested objects are generated as inner classes within the main class.

Is this tool safe?

Yes. All processing happens 100% client-side in your browser.

Is this tool free?

Yes, completely free with no usage limits.

Real-World Examples

A Salesforce developer integrating a third-party shipping API into a Salesforce org receives JSON response samples from the vendor. By running each sample through this JSON-to-Apex converter, they generate strongly-typed Apex wrapper classes in minutes — ensuring compile-time safety and eliminating manual parsing errors that commonly occur with Map<String, Object> approaches.

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