JSON ↔ CSV Converter

JSON InputJSON
CSV OutputCSV

JSON ↔ CSV Converter

Convert JSON data to CSV format and vice-versa instantly.

How to Convert JSON ↔ CSV

1

Enter Data

Paste your JSON array or CSV text into the editor.

2

Select Mode

The tool automatically detects and converts the format based on your selection.

3

Download or Copy

Copy the result to your clipboard or download it as a file.

Frequently Asked Questions

Is my data secure?

Yes! All conversion happens in your browser. Your data is never sent to any server.

Can I convert nested JSON objects?

Currently, this tool supports flat JSON objects or simple arrays for JSON to CSV. For CSV to JSON, it creates a flat array of objects.

Is there a limit on file size?

Since it runs in your browser, the limit depends on your device's memory. It handles large files efficiently.

Do I need to sign up?

No, this tool is completely free and requires no registration.

How does it handle arrays inside objects?

Complex nested arrays may be stringified or flattened depending on the structure. This tool is best optimized for arrays of flat objects.

Can I change the delimiter?

Currently, the tool defaults to a standard comma separator. Support for custom delimiters like semicolons is planned.

Does it support UTF-8 characters?

Yes, special characters and multi-language text are preserved in the CSV output.

Can I convert CSV back to JSON?

Yes, simply switch the mode or use the input tabs to paste CSV data, and it will be converted to a JSON array.

Is there a row limit?

Performance is limited by your browser. Files with tens of thousands of rows usually process fine, but millions of rows may crash the tab.

How do I open the CSV in Excel?

Download the CSV file and open it directly in Excel. If characters look wrong, import it using the Data > From Text/CSV option in Excel and select UTF-8 encoding.