JSON to Java
Generate Java DTOs and review validation-oriented API models.
Developer Utility
File Hash (MD5 / SHA-256) Checksum Calculator
Drag & drop a file to compute MD5, SHA-1, SHA-256, and SHA-512 checksums in the browser. Large files are streamed in chunks and never uploaded.
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.