Generate immutable Java 17/21 record classes with Jackson annotations.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Paste sample JSON into the editor.
Choose the root Java Record identifier.
Copy or download the generated Java source file.
Records provide immutable data carriers with concise syntax, eliminating boilerplate getters, equals, and hashCode methods.
Java Records are officially standard in Java 16, Java 17 LTS, Java 21 LTS, and newer.
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