JSON ↔ CSV

Export to CSV for review and import CSV back to JSON

Turn an array of JSON records into a CSV, or upload a CSV and restore a JSON array. Handy when production data needs spreadsheet review before returning to code.

What to watch for

Nested objects do not fit CSV cleanly, so they are serialised as JSON strings. Flatten with dot paths (`user.name`) when you need real columns.

Reimporting mixed CSVs can silently coerce numeric-looking strings — `007` becomes 7 and loses the leading zero. Quote such fields if the formatting matters.

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.