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BaroConvert

Data & spreadsheets

JSON to CSV Converter

Turns each object in a JSON array into one CSV row. Object keys become the header and values fill the columns.

Conversion workspace

JSON to CSV Converter

Turns each object in a JSON array into one CSV row. Object keys become the header and values fill the columns.

Drop in a file, click convert, and you're done. Everything runs directly in your browser with no upload to wait for, and the result is ready to download right away.
Checking browser support
Verifying file selection and download support before starting.
Output settings

This tool converts right away with sensible defaults — no extra settings.

How to use

  1. Select a JSON file

    Choose a JSON file up to 20 MiB.

  2. Start converting

    Once the file check is done, the CSV conversion starts.

  3. Save the CSV

    Download the finished CSV file.

Frequently asked questions

What kind of JSON can be converted?

JSON whose top level is an array of objects, such as [{"name":"Kim","age":30}]. A single object or a bare value is not converted; you'll see a message instead.

How are nested objects handled?

Nested objects and array values are not flattened — they are stored as JSON strings in a single cell, so the original structure is preserved without data loss.

What happens if objects have different keys?

The keys from all objects are combined to build the CSV header. Rows that lack a key have that cell left blank.

Can I open the resulting CSV in Excel?

Yes. The file follows standard CSV rules, so it opens directly in Excel, Google Sheets, and most other spreadsheet programs.

Is my data sent anywhere?

No. Your files never leave your device. Conversion runs inside your browser and nothing is uploaded.