How to generate POJO from JSON in IntelliJ?

Install the RoboPOJOGenerator plugin from Settings > Plugins. Then right-click your target package > New > Generate POJOs from JSON. Paste your JSON and click Generate.

What is the best IntelliJ plugin for JSON to POJO?

RoboPOJOGenerator is the most popular with 500k+ downloads. For Kotlin, use 'JSON To Kotlin Class'. Both support Lombok, Jackson, and Gson annotations.

Is online converter better than IntelliJ plugin?

Online converters like Json2POJO work instantly without installation, support more options (Records, Moshi), and don't require IDE restarts after updates. Plugins are convenient if you prefer staying in the IDE.

Does IntelliJ have built-in JSON to POJO?

No. IntelliJ IDEA does not have built-in JSON to POJO generation. You need to install a third-party plugin like RoboPOJOGenerator from the Plugin Marketplace.

Can I generate Kotlin data classes from JSON in IntelliJ?

Yes. Install the 'JSON To Kotlin Class' plugin. It supports Moshi, kotlinx.serialization, and Gson annotations with null safety handling.

IntelliJ IDEA: JSON to POJO Generation

Learn how to generate Java POJOs directly in IntelliJ using plugins, and compare it to online converters for speed and flexibility.

Try Online Converter (Faster)

Top IntelliJ JSON to POJO Plugins

RoboPOJOGenerator

The most popular plugin with 500k+ downloads.

Lombok support
Jackson/Gson annotations
Nested class generation

JSON To Kotlin Class

Best for Kotlin/Android development.

Kotlin data classes
Moshi/kotlinx.serialization
Null safety handling

How to Install & Use RoboPOJO

Open Plugin Marketplace: File → Settings → Plugins → Marketplace
Search: Type "RoboPOJOGenerator" and click Install
Restart IntelliJ (required after plugin installation)
Generate: Right-click package → New → Generate POJOs from JSON
Paste JSON and configure options (root class name, Lombok, etc.)

IntelliJ Plugin vs Online Converter

Feature	IntelliJ Plugin	Json2POJO (Online)
Installation	Requires restart	None (instant)
Updates	Manual + restart	Always latest
Java Records	Limited/None	✓ Supported
Lombok	✓ Supported	✓ Supported
Privacy	Local	Client-side only

Verdict: Use the online converter for quick, one-off conversions. Use plugins if you prefer staying in the IDE and don't mind occasional restarts.

Common Issues

Plugin not showing after install?

Make sure to restart IntelliJ. Some plugins require a full restart, not just a reload.

"Generate POJO" option missing?

Right-click on a package, not a file. The option only appears in the package context menu.

Invalid JSON error?

Use our JSON Validator to find and fix syntax errors first.

Missing Lombok getters/setters?

Enable Lombok annotation processing in IntelliJ: Settings → Build → Compiler → Annotation Processors.

Skip the Plugin Installation

Convert JSON to POJO instantly in your browser. No install, no restart, no waiting.

Try the Online Converter