Developer Utility

JSON Patch (RFC 6902) Generator & Apply

Generate RFC 6902 JSON Patch from two JSONs, or apply a patch (add/remove/replace/move/copy/test) to an existing JSON document.

Pairs well with

Jump to other JSON2Class utilities that naturally follow this one.

JSON to Java

Generate Java DTOs and review validation-oriented API models.

JSON to Kotlin

Review nullability and Kotlin data class structure quickly.

JSON Formatter

Format sample payloads before sending them back into the converter.