jsonpost
Code Generation

JSON to POJO (Java Class) Generator

Generate Java classes with fields and Jackson/Gson-ready annotations from any JSON sample.

Runs entirely in your browser — your data never leaves your device.

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How to use this tool

  1. 1Paste your JSON sample into the editor.
  2. 2Set the root class name and package conventions.
  3. 3Copy the generated Java classes.

Frequently asked questions

Are serialization annotations included?
The generated classes are structured for use with common Java JSON libraries like Jackson and Gson.
Does it create nested classes?
Yes. Nested JSON objects produce separate, properly named Java classes.
Is my data uploaded to a server?
No. Every tool on JSONPost runs entirely in your browser using JavaScript. Your JSON never leaves your device, so it is safe to use with private or sensitive data.

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