JSON to Java
Generate Java DTOs and review validation-oriented API models.
Base64
Encode and decode Base64 with correct UTF-8 handling
Convert text or binary payloads to Base64 and back. Useful for JWT prep, image data URIs, and HTTP body inspection.
UTF-8 caveat
The browser `btoa` only accepts Latin1, which trips up multi-byte characters. This tool runs input through `TextEncoder` so UTF-8 text encodes correctly.
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.