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JSON Converters

JSON to Java

Turn JSON into a Java class with typed fields.

  • Free
  • No sign-up
  • Runs in your browser
Output

Converted output will appear here.

What does JSON to Java do?

JSON to Java turns JSON into a Java class with a typed private field for each key, plus getters and setters. Paste your data, press Convert, then copy the result or download it as a file.

What you can use

Valid JSON: an object {…} or, for table-style output, an array of objects [{…}, {…}]. Keys and text values need double quotes, and trailing commas are not allowed.

Example

Input

{ "name": "Asha", "age": 31, "active": true }

Output

public class GeneratedClass {
  private String name;
  private int age;
  private boolean active;
  // getters and setters…
}

How to use JSON to Java

  1. Step 1

    Paste your JSON into the input box, or use “Load example” to see the expected shape.

  2. Step 2

    Press Convert. If the input isn’t valid, an error message tells you what is wrong and where.

  3. Step 3

    Copy the Java output or download it as a file.

Good to know

  • Most errors are a missing comma, a trailing comma after the last item, or single quotes instead of double quotes. The error message points to where parsing stopped.
  • Field types are guessed from the sample values (31 → int, 3.5 → double), so make sure your sample has realistic values for every key.
  • Big inputs (several MB) work, but the browser may pause for a moment while it converts.

Your privacy

Everything happens in this browser tab: what you paste is converted by JavaScript on your device and never sent to our server. Closing the tab clears it. Even so, don’t paste live passwords, API keys or customer records into any website.

Related tools

All JSON Converters
JSON to XMLTurn JSON into well-formed XML.JSON to YAMLTurn JSON into clean YAML for config files.JSON to CSVTurn JSON into a CSV file for Excel or Google Sheets.JSON to TSVTurn JSON into tab-separated rows that paste into a spreadsheet.JSON to TextTurn JSON into plain, readable text.JSON to ExcelTurn JSON into spreadsheet rows and columns.

Frequently asked questions

Is JSON to Java free?

Yes. JSON to Java is completely free, with no sign-up, no watermark and no daily limit.

Is the data I paste sent to a server?

No. Conversion runs in JavaScript inside this browser tab and nothing you paste is sent or stored. Even so, avoid pasting live passwords, API keys or private customer data into any website.

Why do I get an error?

Almost always the input isn’t quite valid: a missing comma or quote in JSON, an unclosed tag in XML, or a tab in YAML. The error message shows where parsing stopped — fix that spot, or press “Load example” to compare with input that works.

Does it work on my phone?

Yes. It works in any modern browser on Android, iPhone, tablets and computers — nothing to install.