Local-first JSON & API developer workspace.
Input Source
⚡ Advanced Developer Toolbox
Transform, Mock, Security & API Client
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Paste JSON Payload
Paste raw JSON, drag & drop a .json file, or choose a workflow below:
Generated Output
JSON to Java — Generate POJOs & Lombok Classes Instantly
Typing out Java classes by hand from an API response is tedious and error-prone. Paste your JSON here and get back a complete set of Java classes in seconds — with proper List<T> for arrays, nested objects extracted as inner static class definitions, and correct handling of boolean fields that start with is.
Toggle the Lombok option to strip out all getters, setters, and constructors and replace them with a single @Data annotation. Toggle Java Records for immutable record types (Java 16+). Both work with Spring Boot and standard Jackson deserialization without any extra configuration.
❓ Frequently Asked Questions
Is processing on json-to-java.html private and secure?
Yes. All JSON processing, parsing, and code generation happen 100% locally inside your browser sandbox. No server roundtrips or third-party tracking occur.
Is JSON Workbench free to use for JSON to Java Pojo/Spring Boot Generator Online?
Yes, JSON Workbench is completely free for commercial and personal developer use with zero registration or payload limits.
Can I copy or download the generated output?
Yes! You can instantly copy the output code to your clipboard or download it as a structured file.