JSON to Java
Generate Java DTOs and review validation-oriented API models.
Developer Utility
Unix Timestamp Converter
Convert Unix epoch timestamps to ISO 8601, UTC, and local time with auto-detected unit (seconds, ms, microseconds).
Pairs well with
Jump to other JSON2Class utilities that naturally follow this one.
JSON to Kotlin
Review nullability and Kotlin data class structure quickly.
JSON to TypeScript
Turn API payloads into TypeScript interfaces for frontend work.
JSON Formatter
Format sample payloads before sending them back into the converter.