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joelittlejohn/jsonschema2pojo · source

Snapshot 0 · 2026-11-04T12:47:22Z · Java · Apache-2.0

GitHub description at capture

Generate Java types from JSON or JSON Schema and annotate those types for data-binding with Jackson, Gson, etc

README at capture

# jsonschema2pojo [![Build Status](https://github.com/joelittlejohn/jsonschema2pojo/actions/workflows/ci.yml/badge.svg?query=branch%3Amaster)](https://github.com/joelittlejohn/jsonschema2pojo/actions/workflows/ci.yml?query=branch%3Amaster) [![Maven Central](https://maven-badges.sml.io/maven-central/org.jsonschema2pojo/jsonschema2pojo/badge.svg)](http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22org.jsonschema2pojo%22)

_jsonschema2pojo_ generates Java types from JSON Schema (or example JSON) and can annotate those types for data-binding with Jackson 2.x, Jackson 3.x, or Gson.

### [Try jsonschema2pojo online](http://jsonschema2pojo.org/)<br>or `brew install jsonschema2pojo`

You can use jsonschema2pojo as a Maven plugin, a command line utility, a Gradle plugin or embedded within your own Java app. The [Getting Started](https://github.com/joelittlejohn/jsonschema2pojo/wiki/Getting-Started) guide will show you how.

A very simple Maven example:
```xml
<plugin>
    <groupId>org.jsonschema2pojo</groupId>
    <artifactId>jsonschema2pojo-maven-plugin</artifactId>
    <version>1.3.3</version>
    <configuration>
        <sourceDirectory>${basedir}/src/main/resources/schema</sourceDirectory>
        <targetPackage>com.example.types</targetPackage>
    </configuration>
    <executions>
        <execution>
            <goals>
                <goal>generate</goal>
            </goals>
        </execution>
    </executions>
</plugin>
```

A very simple Gradle example:

```groovy
plugins {
  id "java"
  id "org.jsonschema2pojo" version "1.3.3"
}

repositories {
  mavenCentral()
}

jsonSchema2Pojo {
  targetPackage = 'com.example'
}
```

Useful pages:
  * **[Getting started](https://github.com/joelittlejohn/jsonschema2pojo/wiki/Getting-Started)**
  * **[How to contribute](https://github.com/joelittlejohn/jsonschema2pojo/blob/master/CONTRIBUTING.md)**
  * [Reference](https://github.com/joelittlejohn/jsonschema2pojo/wiki/Reference)
  * [Latest Javadocs](https://joelittlejohn.github.io/jsonschema2pojo/javadocs/1.3.3/)
  * [Documentation for the Maven plugin](https://joelittlejohn.github.io/jsonschema2pojo/site/1.3.3/generate-mojo.html)
  * [Documentation for the Gradle plugin](https://github.com/joelittlejohn/jsonschema2pojo/tree/master/jsonschema2pojo-gradle-plugin#usage)

Project resources:
  * [Downloads](https://github.com/joelittlejohn/jsonschema2pojo/releases)
  * [Mailing list](https://groups.google.com/forum/#!forum/jsonschema2pojo-users)

Special thanks:
* unkish
* Thach Hoang
* Dan Cruver
* Ben Manes
* Sam Duke
* Duane Zamrok
* Christian Trimble
* YourKit, who support this project through a free license for the [YourKit Java Profiler](https://www.yourkit.com/java/profiler).

Licensed under the [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0).