What JSON structure does this support?

The input must be a JSON array of objects, for example [{"name":"Alice","age":30}]. Each object becomes a row; the keys become column headers.

What if objects have different keys?

All unique keys across all objects are used as column headers. Objects missing a key will produce an empty cell for that column.

Is my data uploaded anywhere?

No. Conversion runs entirely in your browser. Your data never leaves your device.

Can I convert CSV back to JSON?

Not currently, but a CSV to JSON converter is on the roadmap.

JSON to CSV

Paste a JSON array of objects and instantly preview and download it as a CSV. Column headers are inferred from object keys. Runs entirely in your browser — nothing is uploaded.

convertformatno-upload

Ввод JSON

Данные не покидают браузер. Конвертация происходит локально.

JSON to CSV

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