☕ JSON to Java POJO/DTO Converter — Generate Java Classes Online
Paste JSON, get Java POJO or DTO classes with Lombok, Jackson annotations, and nested class support. Free, browser-based, no sign-up.
📋 When to Use the JSON to Java POJO/DTO Converter
The JSON to Java POJO/DTO Converter is built for developers who need quick, reliable tools without leaving their workflow. Use it during code reviews, debugging sessions, or when scaffolding new projects. It's ideal for situations where you need a utility fast — pair programming sessions, hackathons, teaching moments, or when working on a machine where you can't install tools. All processing stays in your browser, so your code and data remain private.
⚙️ How the JSON to Java POJO/DTO Converter Works
The JSON to Java POJO/DTO Converter processes your input using algorithms implemented in client-side JavaScript. When you paste code, enter parameters, or click action buttons, the tool parses, transforms, or generates output using format-specific logic. It may use Web APIs like the Clipboard API for copy operations, Web Crypto API for secure generation, or the File API for drag-and-drop support. The tool is stateless — your code and data never leave your browser. For complex operations (parsing, linting, formatting), the logic runs synchronously and updates results in real time.
How to Use This Tool
- Paste your JSON data into the input — Configure class generation options (Lombok, Jackson annotations) — Click Generate — Copy the Java class code and use in your project
Frequently Asked Questions
Can it handle nested JSON objects?
Yes! Nested objects are automatically converted to inner static classes, preserving the full object hierarchy.
Does it support Lombok annotations?
Yes, enable the "Use Lombok @Data" option to generate clean POJOs with @Data, removing boilerplate getters and setters.
What Java version is the generated code compatible with?
Java 8 and above. The generated code uses standard Java syntax compatible with all modern Java versions.
Do I need Gradle or Maven dependencies?
Only if you enable Lombok or Jackson options — you'll need the corresponding dependencies in your build file. The generated code shows which imports are needed.